Marcus A Mckenna , PA-C
Physician Assistant โข Topeka, KS
4505 Nw Fielding Rd
Topeka, KS 666182651
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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Marcus Mckenna is listed in NPPES under Physician Assistant.
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NPI assigned on December 10, 2013; this date does not establish years in practice.
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Published CMS data list 1,094 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: 293 service units.
- 99213 โ Established patient outpatient office visit: 209 service units.
- 36415 โ Insertion of needle into vein for collection of blood sample: 205 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 19 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 1,516 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:
- Meloxicam โ 109 prescription fills, including refills.
- Lisinopril โ 87 prescription fills, including refills.
- Atorvastatin Calcium โ 74 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 51 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 Physician Assistant in Topeka, KS (2024, 64 clinicians with data). Median for this group: 610. Middle half: 239 to 1,359.
More Medicare Part B services than 75% of clinicians listed under Physician Assistant in Kansas (2024, 674 clinicians with data). Median for this group: 303. Middle half: 124 to 933.
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 434 in 2020 to 1,094 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
4505 Nw Fielding Rd
Topeka, KS 666182651
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
2013
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
310 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 $72,054 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 $55,386 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
2,861 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
$56,980 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 $97.09 in 2022
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 2022.
Years since graduation
13 years (graduated 2013)
CMS Doctors and Clinicians data list 2013 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
2013
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
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Marcus Mckenna 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 Marcus Mckenna 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 Physician Assistant in Topeka, KS (2024, 64 clinicians with data). Median for this group: 610. Middle half: 239 to 1,359.
More Medicare Part B services than 75% of clinicians listed under Physician Assistant in Kansas (2024, 674 clinicians with data). Median for this group: 303. Middle half: 124 to 933.
Medicare-allowed amount
A higher Medicare-allowed amount than 75% of clinicians listed under Physician Assistant in Topeka, KS (2024, 64 clinicians with data). Median for this group: $38,616. Middle half: $11,245 to $67,512.
A higher Medicare-allowed amount than 85% of clinicians listed under Physician Assistant in Kansas (2024, 674 clinicians with data). Median for this group: $20,555. Middle half: $8,685 to $44,901.
Paid by Medicare
A higher Medicare payment amount than 75% of clinicians listed under Physician Assistant in Topeka, KS (2024, 64 clinicians with data). Median for this group: $28,273. Middle half: $8,229 to $47,167.
A higher Medicare payment amount than 85% of clinicians listed under Physician Assistant in Kansas (2024, 674 clinicians with data). Median for this group: $15,337. Middle half: $6,666 to $33,115.
Medicare Part D prescriptions
More Part D prescriptions than 85% of clinicians listed under Physician Assistant in Topeka, KS (2024, 63 clinicians with data). Median for this group: 184. Middle half: 71 to 930.
More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Kansas (2024, 772 clinicians with data). Median for this group: 265. Middle half: 80 to 1,045.
Part D drug cost
A higher Part D drug cost than 75% of clinicians listed under Physician Assistant in Topeka, KS (2024, 63 clinicians with data). Median for this group: $1,660. Middle half: $346 to $46,618.
A higher Part D drug cost than 70% of clinicians listed under Physician Assistant in Kansas (2024, 772 clinicians with data). Median for this group: $4,191. Middle half: $600 to $77,137.
105 active clinicians are listed under Physician Assistant with a practice address in Topeka, KS (1,330 in Kansas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Topeka
13.3% of these 105 clinicians have the CMS telehealth indicator.
64.8% of these 105 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 increased 152% from 434 in 2020 to 1,094 in 2024.
- 2020: 434
- 2021: 407
- 2022: 394
- 2023: 695
- 2024: 1,094
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Medicare-allowed amount
Medicare-allowed amount increased 73% from $41,719 in 2020 to $72,054 in 2024.
- 2020: $41,719
- 2021: $42,097
- 2022: $31,745
- 2023: $44,730
- 2024: $72,054
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Paid by Medicare
Paid by Medicare increased 65% from $33,669 in 2020 to $55,386 in 2024.
- 2020: $33,669
- 2021: $34,011
- 2022: $25,273
- 2023: $33,463
- 2024: $55,386
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 1103% from 126 in 2020 to 1,516 in 2024.
- 2020: 126
- 2021: 142
- 2022: 44
- 2023: 603
- 2024: 1,516
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30-day fills
30-day fills increased 2170% from 126 in 2020 to 2,861 in 2024.
- 2020: 126
- 2021: 142
- 2022: 44
- 2023: 1,068
- 2024: 2,861
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Part D drug cost
Part D drug cost went from $528 in 2020 to $56,980 in 2024.
- 2020: $528
- 2021: $750
- 2022: $197
- 2023: $7,584
- 2024: $56,980
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2022 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), 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 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 2022 (payments made January 1 โ December 31, 2022): fewer than 11 records totaling $97.09.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
|
Sotyktu | General | $97.09 |
Source: CMS Open Payments, program year 2022, 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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293 | 187 | $191.66 | $100.78 |
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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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209 | 154 | $130.18 | $71.09 |
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36415
Insertion of needle into vein for collection of blood sample
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205 | 148 | $16.00 | $8.65 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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87 | 87 | $233.35 | $101.74 |
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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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45 | 11 | $75.34 | $49.32 |
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71046
X-ray of chest, 2 views
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44 | 35 | $54.50 | $20.62 |
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G0008
Administration of influenza virus vaccine
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32 | 31 | $36.00 | $29.94 |
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90653
Influenza vaccine, inactivated
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29 | 29 | $108.00 | $81.82 |
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0240U
Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid-19), influenza a, and influenza b) in upper respiratory specimen, each reported as detected or not detected
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16 | 15 | $270.03 | $139.78 |
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99495
Transitional care management services for problem of at least moderate complexity
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16 | 15 | $294.53 | $161.75 |
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82043
Urine microalbumin (protein) level
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15 | 15 | $83.06 | $5.66 |
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73502
X-ray of hip, 2-3 views
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14 | 14 | $92.25 | $32.93 |
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81002
Urinalysis, manual test
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14 | 14 | $20.92 | $3.41 |
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90677
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use
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14 | 14 | $540.07 | $288.80 |
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73562
X-ray of knee, 3 views
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13 | 12 | $76.75 | $28.44 |
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G0009
Administration of pneumococcal vaccine
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13 | 13 | $33.30 | $29.94 |
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73030
X-ray of shoulder, minimum of 2 views
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12 | 11 | $63.25 | $23.05 |
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93005
Routine electrocardiogram (ecg) using at least 12 leads with tracing
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12 | 11 | $62.75 | $5.37 |
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81003
Automated urinalysis test
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11 | 11 | $79.36 | $2.20 |
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 |
|---|---|---|---|---|---|
| Meloxicam | Meloxicam | 109 | 4,729 | $342.01 | 49 |
| Lisinopril | Lisinopril | 87 | 5,420 | $571.28 | 21 |
| Atorvastatin Calcium | Atorvastatin Calcium | 74 | 5,032 | $552.64 | 24 |
| Levothyroxine Sodium | Levothyroxine Sodium | 63 | 4,897 | $741.53 | 25 |
| Amlodipine Besylate | Amlodipine Besylate | 60 | 4,405 | $388.07 | 23 |
| Losartan Potassium | Losartan Potassium | 57 | 4,590 | $525.82 | 27 |
| Gabapentin | Gabapentin | 48 | 2,100 | $677.75 | 18 |
| Prednisone | Prednisone | 46 | 321 | $73.70 | 40 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 42 | 3,393 | $784.59 | 21 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 37 | 986 | $1,335.63 | 27 |
| Tramadol Hcl | Tramadol Hcl | 34 | 427 | $35.33 | 15 |
| Escitalopram Oxalate | Escitalopram Oxalate | 34 | 1,890 | $162.69 | โ |
| Pantoprazole Sodium | Pantoprazole Sodium | 34 | 2,491 | $269.86 | 15 |
| Trazodone Hcl | Trazodone Hcl | 34 | 1,484 | $147.11 | 12 |
| Omeprazole | Omeprazole | 32 | 2,497 | $314.55 | 15 |
| Hydrochlorothiazide | Hydrochlorothiazide | 31 | 2,790 | $142.20 | 12 |
| Montelukast Sodium | Montelukast Sodium | 30 | 1,980 | $338.58 | โ |
| Bupropion Xl | Bupropion Hcl | 30 | 1,354 | $560.13 | โ |
| Doxycycline Monohydrate | Doxycycline Monohydrate | 30 | 300 | $310.52 | 25 |
| Tamsulosin Hcl | Tamsulosin Hcl | 29 | 1,935 | $316.09 | 12 |
| Ozempic | Semaglutide | 28 | 1,106 | $33,246.09 | โ |
| Sertraline Hcl | Sertraline Hcl | 27 | 1,590 | $78.96 | โ |
| Cyclobenzaprine Hcl | Cyclobenzaprine Hcl | 27 | 275 | $129.23 | 17 |
| Simvastatin | Simvastatin | 25 | 1,830 | $193.47 | โ |
| Metformin Hcl | Metformin Hcl | 25 | 1,857 | $234.96 | โ |
(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: 2025-08-01NUCC Taxonomy Code: 363A00000X
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20150803000185
KS
9234443474
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
2909 Se Walnut Dr, Topeka, KS 666052189
Phone: 7852670744
Cotton-O'neil Clinic Revocable Trust
909 Sw Mulvane St, Topeka, KS 666061677
Phone: 7853549591
Cotton-O'neil Clinic Revocable Trust
901 Sw Garfield Ave, Topeka, KS 666061670
Phone: 7853549591
Cotton-O'neil Clinic Revocable Trust
1704 Commercial Cir, Wamego, KS 665479690
Phone: 7854562207
Cotton-O'neil Clinic Revocable Trust
211 E Main St, Carbondale, KS 664149607
Phone: 7858367111
Cotton-O'neil Clinic Revocable Trust
601 Sw Corporate Vw, Topeka, KS 666151245
Phone: 7853549591
Cotton-O'neil Clinic Revocable Trust
1325 Research Park Dr, Manhattan, KS 665025000
Phone: 7852708723
Cotton-O'neil Clinic Revocable Trust
4505 Nw Fielding Rd, Topeka, KS 666182651
Phone: 7853549591
Cotton-O'neil Clinic Revocable Trust
1414 Sw 8th Ave, Topeka, KS 666061535
Phone: 7853545300
Cotton-O'neil Clinic Revocable Trust
3520 Sw 6th Ave, Topeka, KS 666062806
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.
Nurse Practitioner
Advanced Practice Registered Nurse
Physician Assistant
Physician Assistant
Family Medicine
Doctor of Medicine (M.D.)
Physical Therapist
Physical Therapist
Family Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner
Advanced Practice Registered Nurse
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 4505 NW FIELDING RD, TOPEKA, KS 666182651 (Tel: 7852700080)
Registered at 4505 NW FIELDING RD, TOPEKA, KS 666182651 (Tel: 7852700080)
NPI status registered as active in NPPES database
Registered at 601 SW CORPORATE VW, STE 200, TOPEKA, KS 666151244 (Tel: 7852340880)
Registered at 601 SW CORPORATE VW, STE 200, TOPEKA, KS 666151244 (Tel: 7852340880)
Recorded as MARCUS MCKENNA, PA-C
Physician Assistant (license number reported to NPPES: KS 15-01677)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Topeka
- Dr. Sam Harwood, PA-C, DC
- Rebekah Johnston, PA-C
- Emily Bohannon, PA
- Mckenna Blasi
- Zachary Caldwell, PA
- Rachel Moats, PA-C
Mailing Address
4505 Nw Fielding Rd
Topeka, KS 666182651
Phone: 7852700080