Stephen Calvert, M.D.
Internal Medicine Physician · Tulsa, OK
Stephen Calvert, M.D. is an internal medicine physician with a practice address in Tulsa, Oklahoma, and NPI 1902875420, issued on Mar 16, 2006. Check the license (Oklahoma 22446, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Stephen Calvert
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 22446 OK
Self-reported in NPPES; status is on the state search - Practice location
- 8115 S Memorial Dr, Tulsa, OK 74133
- Phone
- (918) 254-6315
- Enumerated
- Mar 16, 2006
- Record last updated
- Aug 26, 2024
- Fax
- (918) 403-6315
- Medicaid ID
- 200002130A OK
- Medicare enrollment
- Enrolled (PECOS I20050830000817); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,115 in Oklahoma → Look up another NPI →
Also registered at 8115 S Memorial Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amber Cartwright, APRNFamily Medicine Physician1942143698
- Patricia Duffy-Feins, MA, MSWCounselor1093044851
- Adam Greer, DOFamily Medicine Physician1184001133
- Dana Higbee, APRN-CNPFamily Nurse Practitioner1336113554
- Teresa Kline, NPNurse Practitioner1396769493
- Kelsey Kruckeberg, APRN-CNPFamily Nurse Practitioner1356994974
Verify Stephen Calvert 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 22446Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,008 Medicare Part D claims for 111 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate69 claims
- Metformin Hcl39 claims
- Losartan Potassium37 claims
- Trazodone Hcl36 claims
- Rosuvastatin Calcium26 claims
- Atorvastatin Calcium25 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.
Bills Medicare through one group practice
- Omni Medical Group IncTulsa, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Calvert among 1,115 internal medicine physician records in Oklahoma
Stephen Calvert, M.D. is one of 1,115 internal medicine physician records with a practice address in Oklahoma. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 57% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2001 · median 2007 among the 653 with a school on file
- Record last updated2024 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
307 internal medicine physician records list a practice address in Tulsa
They are 307 of the 18,643 NPPES records with a practice address in Tulsa, and 1,115 internal medicine physician records in Oklahoma.
All 1,115 in Oklahoma → Every provider in Tulsa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dan Calhoun, MDTulsa, OK 741331255330528
- John Cook, MDTulsa, OK 741331316905250
- Jonelle Dutton-Gaddis, D.O.Tulsa, OK 741331982680757
- Catherine Gaffney, DOTulsa, OK 741331831143155
- Michael Gebetsberger, MDTulsa, OK 741331851378350
- Lisa King, MDTulsa, OK 741331073545885
- Renae Mayer, M.D.Tulsa, OK 741331093752503
- Dana Morrel, M.D.Tulsa, OK 741331417918954
Common questions
What is Stephen Calvert, M.D.'s NPI number?
Stephen Calvert, M.D.'s National Provider Identifier (NPI) is 1902875420, issued on Mar 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Calvert, M.D. located?
The NPPES record lists a practice address at 8115 S Memorial Dr, Tulsa, OK, 74133. Phone: (918) 254-6315. Providers update this record themselves, so call before visiting.
How can I verify Stephen Calvert, M.D.'s license?
NPPES lists Oklahoma license number 22446, 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 Stephen Calvert, M.D. prescribe under Medicare Part D?
In 2024, Stephen Calvert, M.D. had 1,008 Medicare Part D claims for 111 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.