Gregory S. Wallin, MD
Family Medicine Physician · Benton Harbor, MI
Gregory S. Wallin, MD is a family medicine physician with a practice address in Benton Harbor, Michigan, and NPI 1790070803, issued on Jun 16, 2011. Check the license on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Gregory S. Wallin
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036134280 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1986 Mall PL, Benton Harbor, MI 49022
- Phone
- (269) 945-5854
- Enumerated
- Jun 16, 2011
- Record last updated
- Jan 26, 2024
- Fax
- (369) 945-5854
- Medicare enrollment
- Enrolled (PECOS I20240207001232); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Verify Gregory S. Wallin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)Check the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average family medicine physician in 2024
676 Medicare Part D claims for 42 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 29 claims were for opioids.
Most prescribed
- Amlodipine Besylate26 claims
- Losartan Potassium25 claims
- Pantoprazole Sodium18 claims
- Trulicity18 claims
- Atorvastatin Calcium17 claims
- Metformin Hcl17 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
- Pokagon Band OF Potawatomi IndiansBenton Harbor, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory S. Wallin among 6,013 family medicine physician records in Michigan
Gregory S. Wallin, MD is one of 6,013 family medicine physician records with a practice address in Michigan. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 58% of them.
- NPI issued2011 · 58% of these records are older, 39% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2011 · median 2008 among the 3,493 with a school on file
- Record last updated2024 · 58% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 family medicine physician records list a practice address in Benton Harbor
They are 5 of the 990 NPPES records with a practice address in Benton Harbor, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Benton Harbor → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Christopher CurrieBenton Harbor, MI 490221508353459
- Luis Domenech, M.D.Benton Harbor, MI 490221275694242
- John Maccart, MDBenton Harbor, MI 490221396892634
- Mary Wolf, MDBenton Harbor, MI 490221386791622
- Karen Betten, M.D.Portage, MI 490241699706119
- Linda Campbell, PAPortage, MI 490241447294574
- Matt Ciesielski, DOPortage, MI 490241861462327
- Amber Darey, MDPortage, MI 490241134199698
Common questions
What is Gregory S. Wallin, MD's NPI number?
Gregory S. Wallin, MD's National Provider Identifier (NPI) is 1790070803, issued on Jun 16, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Gregory S. Wallin, MD located?
The NPPES record lists a practice address at 1986 Mall PL, Benton Harbor, MI, 49022. Phone: (269) 945-5854. Providers update this record themselves, so call before visiting.
How can I verify Gregory S. Wallin, MD's license?
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 Gregory S. Wallin, MD prescribe under Medicare Part D?
In 2024, Gregory S. Wallin, MD had 676 Medicare Part D claims for 42 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.