Mark Yost, D.O.
NPI 1265889844 · Family Medicine Physician · Athens, WV
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Yost, D.O. is a Family Medicine Physician provider in Athens, WV (NPI 1265889844).
Provider details
- NPI number
- 1265889844
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 3329 (WV)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 500 Cherry StBluefield, WV 24701-3306Phone: (304) 327-1100
Registry dates
- Enumerated
- 2016-05-24
- Last updated
- 2019-10-25
Frequently asked questions
- What is Mark Yost's NPI number?
- Mark Yost's National Provider Identifier (NPI) is 1265889844, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Yost's specialty?
- Mark Yost is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Yost located?
- Mark Yost's practice location on file with NPPES is 401 Vermillion Street, Athens, WV 24712-0697.
- What is Mark Yost's phone number?
- The practice phone number listed in the NPPES registry for Mark Yost is (304) 384-7325.
- Does Mark Yost accept Medicare?
- Mark Yost is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Yost's NPI active?
- Yes — Mark Yost's NPI (1265889844) is active in the NPPES registry as of the last update on 2019-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.