Dr. William D Harris , DO
Internal Medicine โข Topeka, KS
823 Sw Mulvane St
Topeka, KS 666061764
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. William Harris is listed in NPPES under Internal Medicine.
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NPI assigned on January 20, 2006; this date does not establish years in practice.
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Published CMS data list 2,808 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 โ Established patient outpatient office visit: 554 service units.
- 36415 โ Insertion of needle into vein for collection of blood sample: 435 service units.
- 99490 โ Chronic care management services: 324 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 24 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 5,197 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Levothyroxine Sodium โ 507 prescription fills, including refills.
- Simvastatin โ 338 prescription fills, including refills.
- Atorvastatin Calcium โ 280 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 88 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 65% of clinicians listed under Internal Medicine in Topeka, KS (2024, 26 clinicians with data). Median for this group: 1,009. Middle half: 516 to 3,985.
More Medicare Part B services than 80% of clinicians listed under Internal Medicine in Kansas (2024, 537 clinicians with data). Median for this group: 782. Middle half: 401 to 1,601.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 3,832 in 2020 to 2,808 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
823 Sw Mulvane St
Topeka, KS 666061764
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Cotton-O'Neil Clinic Revocable Trust. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Kansas City University Of Med & Biosciences, College Of Osteo Med
1982
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
398 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $202,760 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $161,319 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
12,407 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$189,067 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $25.74 in 2023
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2023.
Years since graduation
44 years (graduated 1982)
CMS Doctors and Clinicians data list 1982 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Harris has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Harris as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Topeka and Kansas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 65% of clinicians listed under Internal Medicine in Topeka, KS (2024, 26 clinicians with data). Median for this group: 1,009. Middle half: 516 to 3,985.
More Medicare Part B services than 80% of clinicians listed under Internal Medicine in Kansas (2024, 537 clinicians with data). Median for this group: 782. Middle half: 401 to 1,601.
Medicare-allowed amount
A higher Medicare-allowed amount than 65% of clinicians listed under Internal Medicine in Topeka, KS (2024, 26 clinicians with data). Median for this group: $131,002. Middle half: $46,487 to $276,413.
A higher Medicare-allowed amount than 85% of clinicians listed under Internal Medicine in Kansas (2024, 537 clinicians with data). Median for this group: $67,183. Middle half: $33,886 to $130,064.
Paid by Medicare
A higher Medicare payment amount than 65% of clinicians listed under Internal Medicine in Topeka, KS (2024, 26 clinicians with data). Median for this group: $102,998. Middle half: $35,876 to $208,923.
A higher Medicare payment amount than 85% of clinicians listed under Internal Medicine in Kansas (2024, 537 clinicians with data). Median for this group: $50,854. Middle half: $24,838 to $98,265.
Medicare Part D prescriptions
More Part D prescriptions than 60% of clinicians listed under Internal Medicine in Topeka, KS (2024, 32 clinicians with data). Median for this group: 1,134. Middle half: 95 to 8,110.
More Part D prescriptions than 70% of clinicians listed under Internal Medicine in Kansas (2024, 562 clinicians with data). Median for this group: 726. Middle half: 71 to 6,124.
Part D drug cost
A higher Part D drug cost than 60% of clinicians listed under Internal Medicine in Topeka, KS (2024, 32 clinicians with data). Median for this group: $32,746. Middle half: $1,184 to $330,277.
Close to the middle for clinicians listed under Internal Medicine in Kansas (2024, 562 clinicians with data). Median for this group: $68,862. Middle half: $2,374 to $450,245.
52 active clinicians are listed under Internal Medicine with a practice address in Topeka, KS (1,012 in Kansas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Topeka
13.5% of these 52 clinicians have the CMS telehealth indicator.
40.4% of these 52 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 27% from 3,832 in 2020 to 2,808 in 2024.
- 2020: 3,832
- 2021: 4,597
- 2022: 4,466
- 2023: 4,411
- 2024: 2,808
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Medicare-allowed amount
Medicare-allowed amount decreased 30% from $290,582 in 2020 to $202,760 in 2024.
- 2020: $290,582
- 2021: $376,112
- 2022: $361,071
- 2023: $374,359
- 2024: $202,760
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Paid by Medicare
Paid by Medicare decreased 28% from $224,082 in 2020 to $161,319 in 2024.
- 2020: $224,082
- 2021: $291,769
- 2022: $283,272
- 2023: $298,175
- 2024: $161,319
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 16% from 6,199 in 2020 to 5,197 in 2024.
- 2020: 6,199
- 2021: 6,007
- 2022: 5,880
- 2023: 5,629
- 2024: 5,197
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30-day fills
30-day fills decreased 13% from 14,303 in 2020 to 12,407 in 2024.
- 2020: 14,303
- 2021: 13,722
- 2022: 13,438
- 2023: 12,871
- 2024: 12,407
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Part D drug cost
Part D drug cost decreased 25% from $252,924 in 2020 to $189,067 in 2024.
- 2020: $252,924
- 2021: $220,806
- 2022: $232,888
- 2023: $213,220
- 2024: $189,067
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2023 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2023 (payments made January 1 โ December 31, 2023): fewer than 11 records totaling $25.74.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
|
Dexcom G6 Transmitter | General | $25.74 |
Source: CMS Open Payments, program year 2023, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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554 | 291 | $191.55 | $118.12 |
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36415
Insertion of needle into vein for collection of blood sample
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435 | 280 | $16.00 | $8.65 |
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99490
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
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324 | 75 | $75.34 | $57.99 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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245 | 245 | $233.35 | $119.56 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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174 | 34 | $130.20 | $71.73 |
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99439
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month
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145 | 45 | $69.25 | $44.28 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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130 | 125 | $130.18 | $83.72 |
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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96 | 33 | $188.31 | $107.99 |
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77063
Screening 3d breast mammography
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94 | 94 | $43.10 | $21.22 |
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77067
Screening mammography
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94 | 94 | $175.00 | $81.52 |
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71046
X-ray of chest, 2 views
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70 | 58 | $54.50 | $18.73 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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69 | 60 | $258.42 | $165.81 |
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G0008
Administration of influenza virus vaccine
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59 | 58 | $36.00 | $29.94 |
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90653
Influenza vaccine, inactivated
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55 | 55 | $108.00 | $81.82 |
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99495
Transitional care management services for problem of at least moderate complexity
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44 | 40 | $294.53 | $189.98 |
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81003
Automated urinalysis test
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40 | 39 | $78.30 | $2.20 |
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82043
Urine microalbumin (protein) level
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39 | 38 | $83.32 | $5.66 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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30 | 29 | $365.81 | $157.67 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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28 | 27 | $85.25 | $13.00 |
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G0179
Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a
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21 | 18 | $80.50 | $38.10 |
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G0180
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
|
21 | 17 | $93.50 | $49.12 |
|
73562
X-ray of knee, 3 views
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15 | 15 | $86.02 | $29.19 |
|
69210
Removal of impacted ear wax
|
13 | 11 | $106.25 | $42.03 |
|
93005
Routine electrocardiogram (ecg) using at least 12 leads with tracing
|
13 | 13 | $62.75 | $5.52 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Levothyroxine Sodium | Levothyroxine Sodium | 507 | 39,465 | $5,229.16 | 132 |
| Simvastatin | Simvastatin | 338 | 26,653 | $1,800.61 | 83 |
| Atorvastatin Calcium | Atorvastatin Calcium | 280 | 21,072 | $2,521.97 | 89 |
| Amlodipine Besylate | Amlodipine Besylate | 265 | 20,841 | $1,461.30 | 71 |
| Lisinopril | Lisinopril | 236 | 18,084 | $1,456.49 | 56 |
| Omeprazole | Omeprazole | 184 | 13,638 | $1,406.68 | 46 |
| Pantoprazole Sodium | Pantoprazole Sodium | 173 | 11,787 | $2,137.57 | 50 |
| Gabapentin | Gabapentin | 167 | 8,297 | $1,996.85 | 48 |
| Escitalopram Oxalate | Escitalopram Oxalate | 146 | 9,818 | $1,145.41 | 37 |
| Losartan Potassium | Losartan Potassium | 143 | 11,830 | $1,143.23 | 41 |
| Tamsulosin Hcl | Tamsulosin Hcl | 136 | 10,078 | $1,964.50 | 41 |
| Allopurinol | Allopurinol | 113 | 9,660 | $1,086.51 | 34 |
| Potassium Chloride | Potassium Chloride | 113 | 8,060 | $1,884.41 | 36 |
| Terazosin Hcl | Terazosin Hcl | 101 | 8,332 | $1,770.33 | 21 |
| Clopidogrel | Clopidogrel Bisulfate | 89 | 6,456 | $1,143.40 | 25 |
| Montelukast Sodium | Montelukast Sodium | 83 | 5,152 | $859.30 | 20 |
| Furosemide | Furosemide | 81 | 6,014 | $436.92 | 28 |
| Fluticasone Propionate | Fluticasone Propionate | 80 | 4,800 | $1,044.86 | 32 |
| Trazodone Hcl | Trazodone Hcl | 74 | 5,594 | $497.17 | 25 |
| Ezetimibe | Ezetimibe | 73 | 5,496 | $2,909.22 | 20 |
| Clonidine Hcl | Clonidine Hcl | 70 | 6,180 | $425.47 | 17 |
| Eliquis | Apixaban | 66 | 2,820 | $54,157.98 | 16 |
| Metoprolol Tartrate | Metoprolol Tartrate | 63 | 4,382 | $267.34 | 18 |
| Meloxicam | Meloxicam | 62 | 3,990 | $183.43 | 18 |
| Carvedilol | Carvedilol | 62 | 4,497 | $613.35 | 19 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-01-23NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20050610000395
KS
7719921725
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Cotton-O'neil Clinic Revocable Trust
929 Sw Mulvane St, Topeka, KS 666061677
Phone: 7853546242
Cotton-O'neil Clinic Revocable Trust
909 Sw Mulvane St, Topeka, KS 666061677
Phone: 7852704613
Cotton-O'neil Clinic Revocable Trust
2902 Sw Asbury Dr, Topeka, KS 666144466
Phone: 7853549591
Cotton-O'neil Clinic Revocable Trust
909 Sw Mulvane St, Topeka, KS 666061677
Phone: 7853549591
Cotton-O'neil Clinic Revocable Trust
1414 Sw 8th Ave, Topeka, KS 666061535
Phone: 7853545300
Cotton-O'neil Clinic Revocable Trust
211 E Main St, Carbondale, KS 664149607
Phone: 7858367111
Cotton-O'neil Clinic Revocable Trust
2909 Se Walnut Dr, Topeka, KS 666052189
Phone: 7852670744
Cotton-O'neil Clinic Revocable Trust
901 Sw Garfield Ave, Topeka, KS 666061670
Phone: 7853549591
Cotton-O'neil Clinic Revocable Trust
3520 Sw 6th Ave, Topeka, KS 666062806
Phone: 7853549591
Cotton-O'neil Clinic Revocable Trust
4505 Nw Fielding Rd, Topeka, KS 666182651
Phone: 7853549591
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Endocrinology, Diabetes & Metabolism
Doctor of Medicine (M.D.)
Nurse Practitioner - Primary Care
Advanced Practice Registered Nurse
Psychiatry & Neurology - Neurology
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Advanced Practice Registered Nurse
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 823 SW MULVANE ST, TOPEKA, KS 666061764 (Tel: 7853549591)
Registered at 823 SW MULVANE ST, TOPEKA, KS 666061764 (Tel: 7853549591)
Registered at 823 SW MULVANE ST FL 4, TOPEKA, KS 666061764 (Tel: 7853549591)
Registered at 823 SW MULVANE ST STE 400, TOPEKA, KS 666061679 (Tel: 7853549591)
Registered at 823 SW MULVANE ST FL 3, TOPEKA, KS 666061764 (Tel: 7853549591)
Registered at 823 SW MULVANE ST FL 3, TOPEKA, KS 666061764 (Tel: 7853549591)
Registered at 823 SW MULVANE ST FL 4, TOPEKA, KS 666061764 (Tel: 7853549591)
NPI status registered as active in NPPES database
Registered at 823 SW MULVANE ST, TOPEKA, KS 666061764 (Tel: 7853549591)
Registered at 823 SW MULVANE ST, TOPEKA, KS 666061764 (Tel: 7853549591)
Recorded as WILLIAM HARRIS, DO
Internal Medicine (license number reported to NPPES: KS 0523845)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Topeka
- Dr. Bradley Schroeder, DO
- Dr. Maire Fowler, DO
- Dr. Mark Thomas, MD
- Dr. Jesse Vierthaler, MD
- Dr. Jeffrey Conrow, MD
- Dr. Kevin Sundbye, MD
Mailing Address
823 Sw Mulvane St
Topeka, KS 666061764
Phone: 7853549591