1. Home
  2. Directory
  3. Michigan
  4. Okemos
  5. Obstetrics Gynecology
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

THOMAS PETROFF DO
NPI 1578542452
Obstetrics & Gynecology in Okemos, MI

Active since January 10, 2006
2445 JOLLY RD, SUITE 100, OKEMOS, MI 48864(517) 347-4040(517) 347-4109 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Thomas Petroff Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THOMAS PETROFF DO (NPI 1578542452) is an individual obstetrics & gynecology provider in Okemos, Michigan, licensed in Michigan (5101011412) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1578542452
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameTHOMAS PETROFFCredential: DO
Location Address2445 JOLLY RD, SUITE 100Okemos, MI 48864-4590
Mailing Address401 S Ballenger HwyFlint, MI 48532-3638 · (810) 342-1000 · Fax (810) 342-1590
Phone(517) 347-4040
Fax(517) 347-4109
Sole ProprietorNo
Enumeration DateJanuary 10, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1578542452 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in MI · 5101011412
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
2445 JOLLY RD, Okemos, MI 48864
Open in Google Maps ↗

Other Identifiers 7

OtherG13956MI · Health Net Federal Servic
Other0700090MI · Physicians Health Plan
Medicaid4308415MI
Other1653300644MI · Blue Cross Blue Shield
Other252501MI · Health Advantage Network
Other252501MI · Mclaren Health Plan
Other4651172MI · Aetna

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JAMES A BROUILLETTE MD
Pediatrics
2445 JOLLY RD
OKEMOS, MI 48864
Ingham County (517) 347-1231

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas Petroff's NPI number?

The NPI number for Thomas Petroff is 1578542452. It was assigned to this individual provider in the NPPES registry on January 10, 2006.

Where is Thomas Petroff located?

Thomas Petroff practices at 2445 Jolly Rd Suite 100, Okemos, MI 48864. The listed phone number is (517) 347-4040.

What is Thomas Petroff's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

When was this NPI record last updated?

The NPPES record for Thomas Petroff was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.