Mark Witkowski, MD
NPI 1659366052 · Family Medicine Physician · Grafton, WV
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Witkowski, MD is a Family Medicine Physician provider in Grafton, WV (NPI 1659366052).
Provider details
- NPI number
- 1659366052
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 16996 (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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2005-09-13
- Last updated
- 2014-03-05
Frequently asked questions
- What is Mark Witkowski's NPI number?
- Mark Witkowski's National Provider Identifier (NPI) is 1659366052, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Witkowski's specialty?
- Mark Witkowski is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Witkowski located?
- Mark Witkowski's practice location on file with NPPES is 1 Hospital Plz, Grafton, WV 26354-1283.
- What is Mark Witkowski's phone number?
- The practice phone number listed in the NPPES registry for Mark Witkowski is (304) 265-7406.
- Does Mark Witkowski accept Medicare?
- Mark Witkowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Witkowski's NPI active?
- Yes — Mark Witkowski's NPI (1659366052) is active in the NPPES registry as of the last update on 2014-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.