John Maxwell Carment, MD
Geriatric Medicine (Internal Medicine) Physician · Tulsa, OK
John Maxwell Carment, MD is a geriatric medicine (internal medicine) physician with a practice address in Tulsa, Oklahoma, and NPI 1013129329, issued on May 7, 2007. Check the license (Oklahoma 25518, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- John Maxwell Carment
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 25518 OK
Self-reported in NPPES; status is on the state search - Practice location
- 4444 E 41St St, Tulsa, OK 74135
- Phone
- (918) 619-4400
- Enumerated
- May 7, 2007
- Record last updated
- Apr 3, 2025
- Fax
- (918) 619-4152
- Medicaid ID
- 200113480A OK
- Medicare enrollment
- Enrolled (PECOS I20070825000086); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 27 in Oklahoma → Look up another NPI →
Also registered at 4444 E 41St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle AgirigaStudent in an Organized Health Care Education/Training Program1811844798
- Elizabeth AhmedStudent in an Organized Health Care Education/Training Program1710852868
- Sana AhmedStudent in an Organized Health Care Education/Training Program1518684257
- Andrea Albin, DOPediatrics Physician1477050813
- Dru Albin, DOInternal Medicine Physician1487151619
- Breighleigh AlexanderStudent in an Organized Health Care Education/Training Program1407629827
Verify John Maxwell Carment in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 25518Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average geriatric medicine (internal medicine) physician in 2024
10,063 Medicare Part D claims for 398 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 233 claims were for opioids.
Most prescribed
- Levothyroxine Sodium505 claims
- Furosemide420 claims
- Atorvastatin Calcium350 claims
- Eliquis326 claims
- Amlodipine Besylate305 claims
- Gabapentin284 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 17.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $41.46
2 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 1,004 providers of this specialty with any payment received $1,720.82 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Board OF Regents OF The University OF Oklahoma OU Physicians TulsaTulsa, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Maxwell Carment among 27 geriatric medicine (internal medicine) physician records in Oklahoma
John Maxwell Carment, MD is one of 27 geriatric medicine (internal medicine) physician records with a practice address in Oklahoma. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 63% of them.
- NPI issued2007 · 63% of these records are older, 22% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileYes · 30% of these records are
- Record last updated2025 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Oklahoma
There are 27 geriatric medicine (internal medicine) physician records in Oklahoma.
All 27 in Oklahoma → Every provider in Tulsa → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Lisa Duckett, M.D.Tulsa, OK 741351730444746
- Martha Root, DOTulsa, OK 741351720058191
- Insung Kim, MDTulsa, OK 741361528038981
- Chandini Sharma, MDTulsa, OK 741361568550051
- Kenneth Kirk, MDTulsa, OK 741331073521332
- Christopher Taylor, DOBartlesville, OK 740061124053178
- Victoria Harris, M.D.Muskogee, OK 744011205921475
- Timothy Hsieh, M.D.Tahlequah, OK 744641265423883
Common questions
What is John Maxwell Carment, MD's NPI number?
John Maxwell Carment, MD's National Provider Identifier (NPI) is 1013129329, issued on May 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Maxwell Carment, MD located?
The NPPES record lists a practice address at 4444 E 41St St, Tulsa, OK, 74135. Phone: (918) 619-4400. Providers update this record themselves, so call before visiting.
How can I verify John Maxwell Carment, MD's license?
NPPES lists Oklahoma license number 25518, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Maxwell Carment, MD prescribe under Medicare Part D?
In 2024, John Maxwell Carment, MD had 10,063 Medicare Part D claims for 398 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.
What is John Maxwell Carment, MD's MIPS final score?
The 2023 MIPS final score is 17.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.