William G. Stahl, M.D.
Gastroenterology Physician · Marquette, MI
William G. Stahl, M.D. is a gastroenterology physician with a practice address in Marquette, Michigan, and NPI 1265484760, issued on May 16, 2006. Check the license (Michigan 4301082866, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- William G. Stahl
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 4301082866 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1414 W Fair Ave, Marquette, MI 49855
- Phone
- (906) 225-3880
- Enumerated
- May 16, 2006
- Record last updated
- Jan 28, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (906) 225-4523
- Medicaid ID
- 4994550 MI
- Medicare enrollment
- Enrolled (PECOS I20040318000069); accepts Medicare assignment
- Medical or professional school
- Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 1988
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 550 in Michigan → Look up another NPI →
Also registered at 1414 W Fair Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie-Diane Armour, M.S.Genetic Counselor (M.S.)1639553381
- Daniel Arnold, MDHematology (Internal Medicine) Physician1124012661
- Stephen Bailey, PA-CPhysician Assistant1275643827
- Susan Balmer, MDInternal Medicine Physician1164640058
- John Bartlett, M.D.Internal Medicine Physician1821090994
- Eliza Bischof, PA-CPhysician Assistant1366101545
Verify William G. Stahl in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301082866Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average gastroenterology physician in 2024
102 Medicare Part D claims for 44 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium55 claims
- Mesalamine13 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 one group practice
- U.P. Digestive Disease Associates. P.C.Marquette, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William G. Stahl among 550 gastroenterology physician records in Michigan
William G. Stahl, M.D. is one of 550 gastroenterology physician records with a practice address in Michigan. 85% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 50% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1988 · median 2003 among the 415 with a school on file
- Record last updated2013 · 52% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Michigan
There are 550 gastroenterology physician records in Michigan.
All 550 in Michigan → Every provider in Marquette → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Kenneth Buran, M.D.Marquette, MI 498551033129390
- Gregory Hayne, M.D.Marquette, MI 498551457325946
- Thomas KellyMarquette, MI 498551598071201
- Thomas Knuff, M.D.Marquette, MI 498551235119462
- Thomas Noren, M.D.Marquette, MI 498551639159940
- Michael Potes, DOMarquette, MI 498551770074114
- Ann Silverman, MDMarquette, MI 498551902974439
- Francis Welsh, M.D.Marquette, MI 498551336128578
Common questions
What is William G. Stahl, M.D.'s NPI number?
William G. Stahl, M.D.'s National Provider Identifier (NPI) is 1265484760, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William G. Stahl, M.D. located?
The NPPES record lists a practice address at 1414 W Fair Ave, Marquette, MI, 49855. Phone: (906) 225-3880. Providers update this record themselves, so call before visiting.
How can I verify William G. Stahl, M.D.'s license?
NPPES lists Michigan license number 4301082866, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William G. Stahl, M.D. prescribe under Medicare Part D?
In 2024, William G. Stahl, M.D. had 102 Medicare Part D claims for 44 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.