Mark Duff, DO
Family Medicine Physician · Buckeye, WV
Mark Duff, DO is a family medicine physician with a practice address in Buckeye, West Virginia, and NPI 1992782031, issued on Dec 29, 2005. Check the license (West Virginia 1446, as entered in NPPES) on the West Virginia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Mark Duff
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 1446 WV
03315 KY
Self-reported in NPPES; status is on the state search - Practice location
- 150 Duncan RD, Buckeye, WV 24924
- Phone
- (304) 799-7400
- Enumerated
- Dec 29, 2005
- Record last updated
- Aug 6, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid IDs
- 7100046790 KY
2851838 OH
0045353000 WV - Medicare enrollment
- Enrolled (PECOS I20040416000050); accepts Medicare assignment
- Medical or professional school
- West Virginia School Of Osteopathic Medicine, 1993
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,122 in West Virginia → Look up another NPI →
Also registered at 150 Duncan RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Borgens, LCSWMental Health Counselor1508056722
- Kathleen Brown, RD, LDRegistered Dietitian1780082990
- Christian Butcher, M.D.Critical Care Medicine (Internal Medicine) Physician1831116805
- J Copley, PA-CPhysician Assistant1558343475
- Pamela Edens, APRN BC FNPFamily Nurse Practitioner1801868054
- Kelby Faulkiner, DOFamily Medicine Physician1124005160
Verify Mark Duff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWest Virginia Board of Medicine
Search for license 1446Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average family medicine physician in 2024
125 Medicare Part D claims for 85 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin11 claims
- Levofloxacin11 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 2 group practices
- Evanston Hospital CorporationEvanston, WY
- Princeton Community Hospital Assn. Inc.Princeton, WV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Duff among 1,122 family medicine physician records in West Virginia
Mark Duff, DO 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1993 · median 2006 among the 702 with a school on file
- Record last updated2018 · 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).
6 family medicine physician records list a practice address in Buckeye
They are 6 of the 41 NPPES records with a practice address in Buckeye, and 1,122 family medicine physician records in West Virginia.
All 1,122 in West Virginia → Every provider in Buckeye → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kelby Faulkiner, DOBuckeye, WV 249241124005160
- Tommy Holbrook, D.O.Buckeye, WV 249241902101215
- Neal Rehberg, DOBuckeye, WV 249241578716247
- Luis Soriano, MDBuckeye, WV 249241215963806
- Alan Thorne, D.O.Buckeye, WV 249241942527858
- James Blume, DOForest Hill, WV 249351205872447
- Marilyn Glaser, MDAlderson, WV 249101669459616
- Patricia Browning, DOHillsboro, WV 249461942204565
Common questions
What is Mark Duff, DO's NPI number?
Mark Duff, DO's National Provider Identifier (NPI) is 1992782031, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Duff, DO located?
The NPPES record lists a practice address at 150 Duncan RD, Buckeye, WV, 24924. Phone: (304) 799-7400. Providers update this record themselves, so call before visiting.
How can I verify Mark Duff, DO's license?
NPPES lists West Virginia license number 1446, 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 Duff, DO prescribe under Medicare Part D?
In 2024, Mark Duff, DO had 125 Medicare Part D claims for 85 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.