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

Michael Gregory

Individual provider Neurology Physician · NPI 1538386891

Michael Gregory practises Psychiatry in Providence, Rhode Island. Graduated from Rush Medical College of Rush University in 2005, 21 years ago. Practices with Inova Health Care Services, a 1,827-clinician group and accepts Medicare assignment. Licensed in Rhode Island.

Years since qualifying
21
Trained at
Rush Medical College of Rush University
Licensed in
RI
In the registry since
2007
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Practice location Address checks out

593 Eddy St
Providence, RI 02903-4923 Not confirmed with CMS for 19 years — call before visiting
Phone: (401) 444-8450
Fax: (401) 444-5088
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence LP00092 (RI)

Record details

NPI number1538386891
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedApril 19, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Also practisesNEUROLOGY
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 2005 (21 years in practice)
Group practice Inova Health Care Services — 1827 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients16
Services billed 22 a service is one billed item, such as a visit, a test or a procedure
Average patient age64

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $1,873 1 payment

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.

Colleagues at Inova Health Care Services

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1827 clinicians in the practice; 12 are shown here.

Other providers in Providence