Marc A. Subik, M.D.
Gastroenterology Physician · Charleston, WV
Marc A. Subik, M.D. is a gastroenterology physician with a practice address in Charleston, West Virginia, and NPI 1922044221, issued on Jun 22, 2006. Check the license (West Virginia 12349, as entered in NPPES) on the West Virginia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Marc A. Subik
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 12349 WV
Self-reported in NPPES; status is on the state search - Practice location
- 3100 Maccorkle Ave SE, Charleston, WV 25304
- Phone
- (304) 342-0821
- Enumerated
- Jun 22, 2006
- Record last updated
- Nov 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (304) 345-6679
- Medicaid ID
- 0083470000 WV
- Medicare enrollment
- Enrolled (PECOS I20041026000992); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 81 in West Virginia → Look up another NPI →
Also registered at 3100 Maccorkle Ave SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nathaniel Anderson, MDStudent in an Organized Health Care Education/Training Program1205522711
- Steven Artz, M.D.Endocrinology, Diabetes & Metabolism Physician1164529475
- Muhammad Mustafa Bhaty, MDHospitalist Physician1548643687
- William Brogan, APRN, FN-CFamily Nurse Practitioner1386191575
- Nancy Canterbury, MAClinical Psychologist1073520771
- William Carter, MDCardiovascular Disease Physician1457326464
Verify Marc A. Subik in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWest Virginia Board of Medicine
Search for license 12349Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average gastroenterology physician in 2024
194 Medicare Part D claims for 93 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 16 claims were for opioids.
Most prescribed
- Gavilyte-G52 claims
- Omeprazole23 claims
- Hydrocodone-Acetaminophen12 claims
- Sulfasalazine12 claims
- Dicyclomine Hcl11 claims
- Peg-3350 And Electrolytes11 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.
Industry payments in 2024: $580.37
11 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- University Physicians And Surgeons, IncHuntington, WV
- Valley Health Systems, IncFort Gay, WV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc A. Subik among 81 gastroenterology physician records in West Virginia
Marc A. Subik, M.D. is one of 81 gastroenterology physician records with a practice address in West Virginia. 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 6% of them.
- NPI issued2006 · 6% of these records are older, 46% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1979 · median 2002 among the 54 with a school on file
- Record last updated2021 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a West Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in West Virginia
There are 81 gastroenterology physician records in West Virginia.
All 81 in West Virginia → Every provider in Charleston → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Muhammad Bashir, MBBSCharleston, WV 253041881027662
- Jeremy CumberledgeCharleston, WV 253041487912465
- Harry Duncan, MDCharleston, WV 253041780692277
- Natasha Fontaine, M.D.Charleston, WV 253041598938177
- Roberta Hunter, MDCharleston, WV 253041093827420
- Steven Matulis, MDCharleston, WV 253041316955255
- Brittain McJunkin, MDCharleston, WV 253041023044195
- Vishnu Vardhan Reddy Naravadi, M.DCharleston, WV 253041760611776
Common questions
What is Marc A. Subik, M.D.'s NPI number?
Marc A. Subik, M.D.'s National Provider Identifier (NPI) is 1922044221, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc A. Subik, M.D. located?
The NPPES record lists a practice address at 3100 Maccorkle Ave SE, Charleston, WV, 25304. Phone: (304) 342-0821. Providers update this record themselves, so call before visiting.
How can I verify Marc A. Subik, M.D.'s license?
NPPES lists West Virginia license number 12349, 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 Marc A. Subik, M.D. prescribe under Medicare Part D?
In 2024, Marc A. Subik, M.D. had 194 Medicare Part D claims for 93 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.