Allan Walter Barbish, M.D.
Gastroenterology Physician · Portage, MI
Allan Walter Barbish, M.D. is a gastroenterology physician with a practice address in Portage, Michigan, and NPI 1891743191, issued on May 5, 2006. Check the license (Michigan 4301406927, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Allan Walter Barbish
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 4301406927 MI
01040132 IN
Self-reported in NPPES; status is on the state search - Practice location
- 3304 Cooley CT, Portage, MI 49024
- Phone
- (269) 349-2266
- Enumerated
- May 5, 2006
- Record last updated
- Aug 30, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 100355770 IN
- Medicare enrollment
- Enrolled (PECOS I20140807002504); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1986
- Entity
- Type 1 · individual
Also registered at 3304 Cooley CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steven Abshagen, P.A.Physician Assistant1649322678
- Shahid Aziz, DOGastroenterology Physician1588616205
- Katelin BensmanPhysician Assistant1598591299
- Shantel Bleeker, PA-C, RDMedical Physician Assistant1710389853
- Kaitlin Dennett, FNPFamily Nurse Practitioner1356161756
- Henry Dust, MDGastroenterology Physician1548617111
Verify Allan Walter Barbish in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301406927Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average gastroenterology physician in 2024
546 Medicare Part D claims for 268 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.
Most prescribed
- Pantoprazole Sodium175 claims
- Gavilyte-G66 claims
- Omeprazole61 claims
- Peg-3350 And Electrolytes45 claims
- Famotidine25 claims
- Mesalamine22 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $124.63
6 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., 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.
One hospital affiliation
- Bronson Methodist HospitalPortage, MI · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Gastroenterology Physician providers in Michigan
There are 550 gastroenterology physician records in Michigan.
Other gastroenterology physician records in Michigan
- Amir Abadir, M.D.Lansing, MI1184050098
- Adil Abdalla, M.D.Flint, MI1245215292
- Mohamed AbdallahRoyal Oak, MI1265966584
- Mohannad Abousaleh, MDYpsilanti, MI1265828115
- Ahmad Aburashed, M.D.Southfield, MI1487671442
- Megan Adams, MDAnn Arbor, MI1396973269
- Larry Adler, M.D.Ypsilanti, MI1356320634
- Nishant Aggarwal, MDRoyal Oak, MI1497327266
- Radhika Aggarwal, MDDetroit, MI1700084712
- Fariah Ahmad, MDLansing, MI1346770401
Common questions
What is Allan Walter Barbish, M.D.'s NPI number?
Allan Walter Barbish, M.D.'s National Provider Identifier (NPI) is 1891743191, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Allan Walter Barbish, M.D. located?
The NPPES record lists a practice address at 3304 Cooley CT, Portage, MI, 49024. Phone: (269) 349-2266. Providers update this record themselves, so call before visiting.
How can I verify Allan Walter Barbish, M.D.'s license?
NPPES lists Michigan license number 4301406927, 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 Allan Walter Barbish, M.D. prescribe under Medicare Part D?
In 2024, Allan Walter Barbish, M.D. had 546 Medicare Part D claims for 268 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Allan Walter Barbish, M.D.'s MIPS final score?
The 2023 MIPS final score is 84.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.