OAKLAND GASTROENTEROLOGY ASSOCIATES, P.C.
NPI 1508964511
Internal Medicine - Gastroenterology in Royal Oak, MI
About Oakland Gastroenterology Associates, P.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OAKLAND GASTROENTEROLOGY ASSOCIATES, P.C. (NPI 1508964511) is a healthcare organization registered as a gastroenterology in Royal Oak, Michigan and active in the NPI registry since September 2006. The organization holds a CLIA Waiver certificate valid through November 27, 2027 and lists Gregg Polidori, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 20
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Oakland Gastroenterology Associates, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
6Medicare enrollment records show 6 clinicians reassign Medicare billing to Oakland Gastroenterology Associates, P.C., which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (6)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 23D1076937
Oakland Gastroenterology Associates, PC · Royal Oak, MIFrequently 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 Oakland Gastroenterology Associates, P.C.'s NPI number?
The NPI number for Oakland Gastroenterology Associates, P.C. is 1508964511. It was assigned to this organization in the NPPES registry on September 21, 2006.
Where is Oakland Gastroenterology Associates, P.C. located?
Oakland Gastroenterology Associates, P.C. is located at 3535 W 13 Mile Rd Suite 202, Royal Oak, MI 48073. The listed phone number is (248) 551-0900.
What is Oakland Gastroenterology Associates, P.C.'s specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Oakland Gastroenterology Associates, P.C. enrolled in Medicare?
Yes. Oakland Gastroenterology Associates, P.C. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Oakland Gastroenterology Associates, P.C.?
According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 3 Medicare specialties reassign their Medicare billing to Oakland Gastroenterology Associates, P.C.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Gastroenterology (3), Pathology (2) and Nurse Practitioner (1). Of these, 2 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Oakland Gastroenterology Associates, P.C. hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 23D1076937) is associated with this NPI, valid through November 27, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Oakland Gastroenterology Associates, P.C. accept?
Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Oakland Gastroenterology Associates, P.C. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Oakland Gastroenterology Associates, P.C. was last updated on May 5, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years 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.
# Oakland Gastroenterology Associates, P.c. · NPI 1508964511
Gastroenterology organization in Royal Oak, Michigan. Organization record, active in the CMS NPPES registry since September 21, 2006.
## Identity
- **NPI:** 1508964511 (Entity type: Organization)
- **Enumerated:** September 21, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Organization subpart:** No
- **Authorized official:** Gregg Polidori, PRESIDENT
## Practice location
- **Address:** 3535 W 13 MILE RD, SUITE 202, Royal Oak, MI 48073-6770
- **Phone:** (248) 551-0900 · **Fax:** (248) 551-0905
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 6 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Gastroenterology (3), Pathology (2), Nurse Practitioner (1); 2 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 5, 2014
- **Other identifiers:** Medicare UPIN F28208 (MI); Medicare UPIN E76131 (MI); Medicaid 4340940 (MI); and 17 more
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1508964511) · Data from the CMS NPPES public registry.