Mark Allen Yost, D.O.
Family Medicine Physician · Athens, WV
Mark Allen Yost, D.O. is a family medicine physician with a practice address in Athens, West Virginia, and NPI 1265889844, issued on May 24, 2016. Check the license (West Virginia 3329, as entered in NPPES) on the West Virginia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark Allen Yost
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 3329 WV
Self-reported in NPPES; status is on the state search - Practice location
- 401 Vermillion Street, Athens, WV 24712
- Phone
- (304) 384-7325
- Enumerated
- May 24, 2016
- Record last updated
- Oct 25, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,122 in West Virginia → Look up another NPI →
Also registered at 401 Vermillion Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Natasha Barker, PACPhysician Assistant1578789731
Verify Mark Allen Yost in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWest Virginia Board of Medicine
Search for license 3329Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
112 Medicare Part D claims for 65 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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 Allen Yost among 1,122 family medicine physician records in West Virginia
Mark Allen Yost, D.O. is one of 1,122 family medicine physician records with a practice address in West Virginia. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.
- NPI issued2016 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2019 · 48% 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 West Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 family medicine physician record lists a practice address in Athens
They are 1 of the 46 NPPES records with a practice address in Athens, and 1,122 family medicine physician records in West Virginia.
All 1,122 in West Virginia → Every provider in Athens → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Shariful Alam, DOBluefield, WV 247011518451962
- Carol Asbury, M.D.Bluefield, WV 247011659433951
- Ram Bhasin, MDBluefield, WV 247011811998743
- Ronald Billips, MDBluefield, WV 247011881850592
- Toni Muncy, D.O.Bluefield, WV 247011427376375
- Roberto ReynagaBluefield, WV 247011356699920
- Milagros Vidot, M.D.Bluefield, WV 247011295798098
- William Bird, MDPrinceton, WV 247401033108733
Common questions
What is Mark Allen Yost, D.O.'s NPI number?
Mark Allen Yost, D.O.'s National Provider Identifier (NPI) is 1265889844, issued on May 24, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Mark Allen Yost, D.O. located?
The NPPES record lists a practice address at 401 Vermillion Street, Athens, WV, 24712. Phone: (304) 384-7325. Providers update this record themselves, so call before visiting.
How can I verify Mark Allen Yost, D.O.'s license?
NPPES lists West Virginia license number 3329, as entered by the provider. Search the West Virginia Board of Medicine at https://wvbom.wv.gov/public/search/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Allen Yost, D.O. prescribe under Medicare Part D?
In 2024, Mark Allen Yost, D.O. had 112 Medicare Part D claims for 65 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.