Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Gilbert A Masterson, MD

Individual provider Addiction Medicine (Psychiatry & Neurology) Physician · NPI 1497740930

Gilbert A Masterson, MD practises Psychiatry in Grand Rapids, Michigan. Graduated from Loma Linda University School of Medicine in 1980, 46 years ago. Works from 4 locations and accepts Medicare assignment. Licensed in Michigan and Ohio.

Years since qualifying
46
Trained at
Loma Linda University School of Medicine
Licensed in
MI, OH
In the registry since
2005
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1179 E Paris Ave SE Ste 100
Grand Rapids, MI 49546-3682
Phone: (616) 690-2690
Fax: (616) 360-2034
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 221 John St Ne, Grand Rapids, MI 49503-3237 — (844) 776-9651
  • 540 Cherry St Se, Grand Rapids, MI 49503-4748 — (844) 776-9651
  • 15146 16th Ave, Marne, MI 49435-9605 — (616) 520-9075

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 4301062800 (MI)
Addiction Medicine (Psychiatry & Neurology) Physician Taxonomy 2084A0401X · Licence 4301062800 (MI)
Psychiatry Physician Taxonomy 2084P0800X · Licence 35-127636 (OH)

Record details

NPI number1497740930
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 12, 2005
Last updated in NPPESNovember 12, 2024
Certification dateNovember 12, 2024

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1980 (46 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $266 10 payments · a meal or drink at a meeting or visit, not a fee
Education $81 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

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