Dr. John W. Willis , MD
Internal Medicine • Columbus, OH
4830 Knightsbridge Blvd, Suite A
Columbus, OH 432142300
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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NPI assigned on September 20, 2006; this date does not establish years in practice.
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Published CMS data list 2,331 Original Medicare Part B services in 2022.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022. Published rows only; this is not a quality measure.
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Published Part B service records, 2022:
- 99213 — Established patient outpatient office visit: 461 service units.
- 36415 — Insertion of needle into vein for collection of blood sample: 318 service units.
- 80053 — Blood test, comprehensive group of blood chemicals: 194 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2021 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2022). CPT notice
See all 26 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 12 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Tamsulosin Hcl — 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Fewer Part D prescriptions than 95% of clinicians listed under Internal Medicine in Columbus, OH (2024, 373 clinicians with data). Median for this group: 278. Middle half: 74 to 2,917.
Fewer Part D prescriptions than 95% of clinicians listed under Internal Medicine in Ohio (2024, 3,362 clinicians with data). Median for this group: 883. Middle half: 119 to 5,445.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 2,342 in 2018 to 2,331 in 2022.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2018–2022.
Practice Location & Contact Primary Location
4830 Knightsbridge Blvd
Suite A
Columbus, OH 432142300
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $80,804 in 2022
The total amount Medicare approved for these services in 2022. 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 – by Provider and Service, 2022.
Paid by Medicare
About $59,862 in 2022
The part of the Medicare-allowed amount that Medicare itself paid in 2022, 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 – by Provider and Service, 2022.
30-day fills
12 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
$325 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 – by Provider and Drug, 2024.
Open Payments general payments, program year 2022
All general payments: $59.39 across 4 records.
By nature of payment
- Food and Beverage: $59.39 across 4 records.
Reporting-company totals
- GlaxoSmithKline, LLC.: $33.39 across 2 records.
- Novo Nordisk Inc: $14.10 across 1 record.
- Pfizer Inc.: $11.90 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2022 (published June 30, 2026).
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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, “Does your provider accept Medicare as full payment?”
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. Willis 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. Willis 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 Columbus and Ohio
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Fewer Part D prescriptions than 95% of clinicians listed under Internal Medicine in Columbus, OH (2024, 373 clinicians with data). Median for this group: 278. Middle half: 74 to 2,917.
Fewer Part D prescriptions than 95% of clinicians listed under Internal Medicine in Ohio (2024, 3,362 clinicians with data). Median for this group: 883. Middle half: 119 to 5,445.
Part D drug cost
A lower Part D drug cost than 80% of clinicians listed under Internal Medicine in Columbus, OH (2024, 373 clinicians with data). Median for this group: $19,561. Middle half: $912 to $255,917.
A lower Part D drug cost than 85% of clinicians listed under Internal Medicine in Ohio (2024, 3,362 clinicians with data). Median for this group: $79,160. Middle half: $4,027 to $440,452.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Willis are from 2022.
580 active clinicians are listed under Internal Medicine with a practice address in Columbus, OH (5,283 in Ohio).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Columbus
15.9% of these 580 clinicians have the CMS telehealth indicator.
63.4% of these 580 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 varied from year to year: 2,342 in 2018 and 2,331 in 2022.
- 2018: 2,342
- 2019: 4,031
- 2020: 3,420
- 2021: 3,989
- 2022: 2,331
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Medicare-allowed amount
Medicare-allowed amount decreased 36% from $126,129 in 2018 to $80,804 in 2022.
- 2018: $126,129
- 2019: $125,930
- 2020: $106,082
- 2021: $130,983
- 2022: $80,804
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Paid by Medicare
Paid by Medicare decreased 36% from $92,981 in 2018 to $59,862 in 2022.
- 2018: $92,981
- 2019: $98,136
- 2020: $84,304
- 2021: $106,144
- 2022: $59,862
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 100% from 6,133 in 2020 to 12 in 2024.
- 2020: 6,133
- 2021: 5,799
- 2022: 4,978
- 2023: 45
- 2024: 12
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30-day fills
30-day fills decreased 100% from 13,171 in 2020 to 12 in 2024.
- 2020: 13,171
- 2021: 12,926
- 2022: 11,255
- 2023: 49
- 2024: 12
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Part D drug cost
Part D drug cost decreased 100% from $517,802 in 2020 to $325 in 2024.
- 2020: $517,802
- 2021: $480,360
- 2022: $392,254
- 2023: $641
- 2024: $325
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 96% from $1,551.34 in 2019 to $59.39 in 2022.
- 2019: $1,551.34
- 2020: $447.65
- 2021: $39.55
- 2022: $59.39
Sources: CMS Medicare Physician & Other Practitioners (2022), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2022), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · 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 2022 (payments made January 1 – December 31, 2022): fewer than 11 records totaling $59.39.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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SHINGRIX | General | $17.15 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
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SHINGRIX | General | $16.24 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Rybelsus | General | $14.10 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
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NURTEC ODT | General | $11.90 |
Source: CMS Open Payments, program year 2022, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2021 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 – by Provider and Service data, 2017–2022; 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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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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461 | 273 | $116.92 | $88.03 |
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36415
Insertion of needle into vein for collection of blood sample
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318 | 209 | $11.82 | $2.97 |
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80053
Blood test, comprehensive group of blood chemicals
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194 | 159 | $25.00 | $10.33 |
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80061
Blood test, lipids (cholesterol and triglycerides)
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187 | 151 | $36.00 | $13.04 |
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85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
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186 | 153 | $16.00 | $7.63 |
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84443
Blood test, thyroid stimulating hormone (tsh)
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137 | 124 | $35.00 | $16.54 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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113 | 106 | $75.00 | $13.89 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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98 | 98 | $175.00 | $127.98 |
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83036
Hemoglobin a1c level
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88 | 68 | $23.00 | $9.36 |
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80048
Blood test, basic group of blood chemicals (calcium, total)
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86 | 65 | $22.00 | $8.38 |
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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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72 | 57 | $166.31 | $122.41 |
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71046
X-ray of chest, 2 views
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61 | 60 | $70.00 | $21.87 |
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82607
Cyanocobalamin (vitamin b-12) level
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36 | 36 | $70.00 | $14.57 |
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82746
Folic acid level, serum
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35 | 35 | $67.00 | $14.20 |
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87088
Bacterial urine culture
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32 | 25 | $22.00 | $8.01 |
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81003
Automated urinalysis test
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29 | 27 | $16.00 | $2.24 |
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G0103
Prostate cancer screening; prostate specific antigen test (psa)
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29 | 29 | $44.00 | $18.46 |
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99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
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28 | 25 | $75.00 | $55.25 |
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80076
Liver function blood test panel
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24 | 23 | $20.00 | $8.11 |
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85610
Blood test, clotting time
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24 | 12 | $15.00 | $4.26 |
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82570
Creatinine level to test for kidney function or muscle injury
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23 | 22 | $28.00 | $5.12 |
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82043
Urine microalbumin (protein) level
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19 | 18 | $31.00 | $5.70 |
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83970
Parathormone (parathyroid hormone) level
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15 | 13 | $125.00 | $40.87 |
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82306
Vitamin d-3 level
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14 | 14 | $70.00 | $29.24 |
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72100
X-ray of lower and sacral spine, 2-3 views
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11 | 11 | $69.00 | $27.54 |
(top 25 shown)
Source: CMS Part B by Provider and Service, 2022; 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 |
|---|---|---|---|---|---|
| Tamsulosin Hcl | Tamsulosin Hcl | 12 | 358 | $325.36 | — |
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
NUCC 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
I20040910001070
OH
7012984925
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
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
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated September 20, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Internal Medicine Providers in Columbus
- Dr. Brian Doyle, MD
- Dr. Amy Kelley, MD
- Dr. Beata Kosiorowska-Sterkowicz, MD
- Dr. Julie Hundley, MD
- Dr. Sofanit Dessie, MD
- Dr. Lisa Horn, MD
Mailing Address
4830 Knightsbridge Blvd, Suite A
Columbus, OH 432142300
Phone: 6144512174