Mark David Winchester, MD
Family Medicine Physician · Norman, OK
Mark David Winchester, MD is a family medicine physician with a practice address in Norman, Oklahoma, and NPI 1912974809, issued on Mar 1, 2006. Check the license (Oklahoma 17303, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- Mark David Winchester
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 17303 OK
Self-reported in NPPES; status is on the state search - Practice location
- 317 E Himes St, Norman, OK 73069
- Phone
- (405) 632-6688
- Enumerated
- Mar 1, 2006
- Record last updated
- Mar 19, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (405) 604-0738
- Medicaid ID
- 100186300A OK
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,303 in Oklahoma → Look up another NPI →
Also registered at 317 E Himes St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mishell Kerr, APRN-CNPFamily Nurse Practitioner1023460318
- Sharon Martin, APRNPsychiatric/Mental Health Nurse Practitioner1598213514
- Landon Rodriguez, APRN-CNPFamily Nurse Practitioner1700596277
Verify Mark David Winchester 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 17303Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 100% of the cost of the top drugs
27 Medicare Part D claims for 14 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 70% of claims.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Shingrix16 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.
Mark David Winchester among 2,303 family medicine physician records in Oklahoma
Mark David Winchester, MD is one of 2,303 family medicine physician records with a practice address in Oklahoma. 79% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2015 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 family medicine physician records list a practice address in Norman
They are 54 of the 4,245 NPPES records with a practice address in Norman, and 2,303 family medicine physician records in Oklahoma.
All 2,303 in Oklahoma → Every provider in Norman → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Rachel Anderson, MDNorman, OK 730691366584252
- Larry Burns, D.O.Norman, OK 730691245355544
- Amy Chadwick-Smith, M.D.Norman, OK 730691073803193
- Lisa Connery, M.D.Norman, OK 730691205828977
- Steven Cox, D.O.Norman, OK 730691306958889
- David Crosswhite, D.ONorman, OK 730691477515054
- Jim Davis, DONorman, OK 730691780675975
- Bobby Elliott, DONorman, OK 730691073573911
Common questions
What is Mark David Winchester, MD's NPI number?
Mark David Winchester, MD's National Provider Identifier (NPI) is 1912974809, issued on Mar 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark David Winchester, MD located?
The NPPES record lists a practice address at 317 E Himes St, Norman, OK, 73069. Phone: (405) 632-6688. Providers update this record themselves, so call before visiting.
How can I verify Mark David Winchester, MD's license?
NPPES lists Oklahoma license number 17303, 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 Mark David Winchester, MD prescribe under Medicare Part D?
In 2024, Mark David Winchester, MD had 27 Medicare Part D claims for 14 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.