Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Gregory S Wallin, MD

Individual provider Obesity Medicine (Family Medicine) Physician · NPI 1790070803

Gregory S Wallin, MD is a Family Practice in Benton Harbor, Michigan. Graduated from Loma Linda University School of Medicine in 2011, 15 years ago. Practices with Pokagon Band of Potawatomi Indians, an 8-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
15
Trained at
Loma Linda University School of Medicine
Licensed in
IL
In the registry since
2011
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1986 Mall Pl
Benton Harbor, MI 49022-2332
Phone: (269) 945-5854
Fax: (369) 945-5854
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 430 Warrenville Rd Ste 310, Lisle, IL 60532-1348 — (630) 548-0408

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 036134280 (IL)
Obesity Medicine (Family Medicine) Physician Taxonomy 207QB0002X · Licence 036134280 (IL)

Record details

NPI number1790070803
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 16, 2011
Last updated in NPPESJanuary 26, 2024
Certification dateJanuary 26, 2024
Mailing address1860 Payshere Circle, Chicago, IL 60674-4035

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice Pokagon Band Of Potawatomi Indians — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare