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FLINT GASTROENTEROLOGY ASSOCIATES PC
NPI 1982658456
Internal Medicine - Gastroenterology in Grand Blanc, MI

Active since May 20, 2006
8275 HOLLY RD STE 2, GRAND BLANC, MI 48439(810) 603-8400(810) 603-8410 Get Directions Write a Review

NPPES record last updated: April 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 23, 2026, Feb 5, 2026, Jan 27, 2026 and 1 more (4 updates tracked since 2025).

About Flint Gastroenterology Associates Pc NPPES

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

FLINT GASTROENTEROLOGY ASSOCIATES PC (NPI 1982658456) is a healthcare organization registered as a gastroenterology in Grand Blanc, Michigan and active in the NPI registry since May 2006. The organization lists Nathan Landesman, President, as its authorized official.

NPPES Registry Identity

NPI1982658456
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameFLINT GASTROENTEROLOGY ASSOCIATES PC
Location Address8275 HOLLY RD STE 2Grand Blanc, MI 48439-2442
Mailing Address3495 S Center RdBurton, MI 48519-1455
Phone(810) 603-8400
Fax(810) 603-8410
Organization SubpartNo
Authorized OfficialNathan LandesmanPresident · (810) 603-8400
Enumeration DateMay 20, 2006
Last NPPES UpdateApril 23, 20264 updates tracked since enumeration
NPPES CertifiedApril 23, 2026
✔ NPI 1982658456 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedPathology · Anatomic Pathology & Clinical PathologyTaxonomy 207ZP0102X
8275 HOLLY RD STE 2, Grand Blanc, MI 48439
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company.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)

Flint Gastroenterology Associates Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

11

Medicare enrollment records show 11 clinicians reassign Medicare billing to Flint Gastroenterology Associates PC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 11 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 4

Gastroenterology5
Nurse Practitioner4
Internal Medicine1
Pathology1

Clinicians, nearest first (11)

Hannah Thompson, NP
Nurse Practitioner
NPI 1437960002
8275 HOLLY RD STE 2
Grand Blanc, MI 48439
(810) 603-8400
✔ PECOS✔ Accepts MedicareSame address
John Macksood, D.O.
Gastroenterology
NPI 1952387797
600 HEALTH PARK BLVD SUITE D
Grand Blanc, MI 48439
(810) 603-8400
✔ PECOS✔ Accepts Medicare1.2 mi
Justin Miller, D.O.
Gastroenterology
NPI 1104879493
600 HEALTH PARK BLVD SUITE D
Grand Blanc, MI 48439
(810) 603-8400
✔ PECOS✔ Accepts Medicare1.2 mi
Mark Minaudo, DO
Gastroenterology
NPI 1942239819
600 HEALTH PARK BLVD SUITE D
Grand Blanc, MI 48439
(810) 424-2011
✔ PECOS✔ Accepts Medicare1.2 mi
Michael Neumann, D.O.
Gastroenterology
NPI 1578549325
600 HEALTH PARK BLVD STE D
Grand Blanc, MI 48439
(810) 603-8400
✔ PECOS✔ Accepts Medicare1.2 mi
Gwendolyn Wright, DNP
Nurse Practitioner
NPI 1467832246
600 HEALTH PARK BLVD STE D
Grand Blanc, MI 48439
(810) 603-8400
✔ PECOS✔ Accepts Medicare1.2 mi
Melissa Baker, NP
Nurse Practitioner
NPI 1598451197
600 HEALTH PARK BLVD STE D
Grand Blanc, MI 48439
(810) 603-8400
✔ PECOS✔ Accepts Medicare1.2 mi
Kaitlyn Hill, FNP-C
Nurse Practitioner
NPI 1982204640
600 HEALTH PARK BLVD
Grand Blanc, MI 48439
(810) 603-8400
✔ PECOS✔ Accepts Medicare1.2 mi
Nathan Landesman, D.O.
Gastroenterology
NPI 1457397143
600 HEALTH PARK BLVD STE D
Grand Blanc, MI 48439
(810) 603-8400
✔ PECOS✔ Accepts Medicare1.2 mi
Derek Thigpin, DO
Internal Medicine
NPI 1265691380
600 HEALTH PARK BLVD STE D
Grand Blanc, MI 48439
(810) 603-8400
✔ PECOS✔ Accepts Medicare1.2 mi
Baraa Alosh, MD
Pathology
NPI 1073932943
9460 S SAGINAW RD STE D
Grand Blanc, MI 48439
(810) 733-7741
✔ PECOS✔ Accepts Medicare1.8 mi

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 Compliance 23D2245112

Flint Gastroenterology Associates · Grand Blanc, MI
Expired · Oct 2, 2026
CLIA Number23D2245112
Laboratory TypePhysician Office
Certificate Effective DateOctober 3, 2024
Certificate Expiration DateOctober 2, 2026
Laboratory DirectorBaraa Alosh
Laboratory Phone(810) 603-8400
Laboratory LocationFlint Gastroenterology Associates8275 Holly Road Suite 2, Grand Blanc, MI 48439
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 Flint Gastroenterology Associates PC's NPI number?

The NPI number for Flint Gastroenterology Associates PC is 1982658456. It was assigned to this organization in the NPPES registry on May 20, 2006.

Where is Flint Gastroenterology Associates PC located?

Flint Gastroenterology Associates PC is located at 8275 Holly Rd Ste 2, Grand Blanc, MI 48439. The listed phone number is (810) 603-8400.

What is Flint Gastroenterology Associates PC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Flint Gastroenterology Associates PC enrolled in Medicare?

Yes. Flint Gastroenterology Associates PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Flint Gastroenterology Associates PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 11 clinicians in 4 Medicare specialties reassign their Medicare billing to Flint Gastroenterology Associates PC. 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 (5), Nurse Practitioner (4) and Internal Medicine (1). Of these, 1 practice at this address and 11 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Flint Gastroenterology Associates PC accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Flint Gastroenterology Associates PC 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 Flint Gastroenterology Associates PC was last updated on April 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.