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GREAT LAKES BAY HEALTH CENTERS
NPI 1871684761
Obstetrics & Gynecology in Saginaw, MI

Active since September 27, 2006
501 LAPEER, SAGINAW, MI 48607(989) 759-6464(989) 399-8233 Get Directions Write a Review

NPPES record last updated: September 2, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 2, 2025, Mar 23, 2021, Nov 4, 2016 (3 updates tracked since 2016).

About Great Lakes Bay Health Centers NPPES

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

GREAT LAKES BAY HEALTH CENTERS (NPI 1871684761) is a healthcare organization registered as an obstetrics & gynecology in Saginaw, Michigan and active in the NPI registry since September 2006. The organization lists Lisa Galonska, Vice President, as its authorized official.

NPPES Registry Identity

NPI1871684761
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NameGREAT LAKES BAY HEALTH CENTERS
Location Address501 LAPEERSaginaw, MI 48607-1208
Mailing Address501 LapeerSaginaw, MI 48607-1208 · (989) 759-6464 · Fax (989) 399-8233
Phone(989) 759-6464
Fax(989) 399-8233
Organization SubpartNo
Authorized OfficialLisa GalonskaVice President · (989) 759-6464
Enumeration DateSeptember 27, 2006
Last NPPES UpdateSeptember 2, 20253 updates tracked since enumeration
NPPES CertifiedMarch 11, 2024
✔ NPI 1871684761 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
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.
501 LAPEER, Saginaw, MI 48607
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Other Names 1

Other NameOb/gyn

Other Identifiers 2

Other160G36111MI · Blue Cross Blue Shield
Other700G36111MI · Blue Cross Blue Shield

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 Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Great Lakes Bay Health Centers is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by December 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateMichiganEnrollment IDO20040126000171Non-DME Part B · Clinic/Group PracticeDue dateDecember 31, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

228

Medicare enrollment records show 228 clinicians reassign Medicare billing to Great Lakes Bay Health Centers, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 115 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 20

Nurse Practitioner45
Clinical Social Worker41
Family Practice28
Obstetrics/Gynecology25
Dentist17
Diagnostic Radiology17
Psychiatry17
Optometry6
12 other specialties32

Nearest to this location (20)

See all 228
Ancy Abraham, NURSE PRACTITIONER
Nurse Practitioner
NPI 1942686464
501 LAPEER AVE
Saginaw, MI 48607
(989) 753-6000
✔ PECOS✔ Accepts MedicareSame address
Amanda Cook, NP
Nurse Practitioner
NPI 1720325947
501 LAPEER AVE
Saginaw, MI 48607
(989) 759-6464
✔ PECOS✔ Accepts MedicareSame address
Ashley Gardner, NP
Nurse Practitioner
NPI 1467902825
501 LAPEER AVE
Saginaw, MI 48607
(989) 759-6464
✔ PECOS✔ Accepts MedicareSame address
Kari Jordan, LMSW
Clinical Social Worker
NPI 1114585858
501 LAPEER AVE
Saginaw, MI 48607
(989) 759-6464
✔ PECOS✔ Accepts MedicareSame address
Smriti Pant, FNP
Nurse Practitioner
NPI 1538518071
501 LAPEER AVE
Saginaw, MI 48607
(989) 759-6464
✔ PECOS✔ Accepts MedicareSame address
Parker Duncan, DDS
Dentist
NPI 1841858636
321 N WARREN
Saginaw, MI 48607
(989) 754-7771
✔ PECOS0.1 mi
Doris Tellis, LMSW
Clinical Social Worker
NPI 1487194551
301 E GENESEE AVE
Saginaw, MI 48607
(989) 332-8052
✔ PECOS✔ Accepts Medicare0.1 mi
Shana Pitman, DDS
Oral Surgery
NPI 1861871436
321 N WARREN AVE
Saginaw, MI 48607
(989) 754-7771
✔ PECOS0.2 mi
Dominic Sutermeister, DDS
Dentist
NPI 1396627113
321 N WARREN AVE
Saginaw, MI 48607
(989) 754-7771
✔ PECOS0.2 mi
Norman Chapin, MD
Family Practice
NPI 1396769808
1522 JANES AVE
Saginaw, MI 48601
(989) 755-0316
✔ PECOS✔ Accepts Medicare0.6 mi
Brenda Coughlin, MD
Family Practice
NPI 1609864495
1522 JANES AVE
Saginaw, MI 48601
(989) 755-1316
✔ PECOS✔ Accepts Medicare0.6 mi
Chelsea Elliott, LMSW
Clinical Social Worker
NPI 1386181428
1522 JANES AVE
Saginaw, MI 48601
(899) 755-0316
✔ PECOS0.6 mi
Lakshmi Gowda Hanumaiah, MD
Internal Medicine
NPI 1770714370
1522 JANES AVE
Saginaw, MI 48601
(810) 938-7865
✔ PECOS✔ Accepts Medicare0.6 mi
Janell Jordan Turner, FNP-BC
Nurse Practitioner
NPI 1447611900
1522 JANES AVE
Saginaw, MI 48601
(989) 755-0316
✔ PECOS✔ Accepts Medicare0.6 mi
Barbara Kish, CFNP
Nurse Practitioner
NPI 1902894769
1522 JANES AVE
Saginaw, MI 48601
(989) 755-0316
✔ PECOS✔ Accepts Medicare0.6 mi
Onyinyechi Nweke, M.D.
Pediatric Medicine
NPI 1154876522
1522 JANES AVE
Saginaw, MI 48601
(989) 755-0316
✔ PECOS0.6 mi
Karthik Ravindran, M.D.
Internal Medicine
NPI 1770993594
1522 JANES AVE
Saginaw, MI 48601
(989) 755-0316
✔ PECOS✔ Accepts Medicare0.6 mi
Derek Williams, OD
Optometry
NPI 1942793294
1522 JANES AVE
Saginaw, MI 48601
(989) 907-2790
✔ PECOS✔ Accepts Medicare0.6 mi
Radha Cherukuri, M.D.
Obstetrics/Gynecology
NPI 1275532954
800 COOPER AVE STE 7
Saginaw, MI 48602
(989) 755-4515
✔ PECOS✔ Accepts Medicare0.9 mi
Christina Andreozzi, M.D.
Gynecological Oncology
NPI 1477905230
1000 HOUGHTON AVE
Saginaw, MI 48602
(989) 558-6425
✔ PECOS✔ Accepts Medicare1.0 mi
See all 228 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Great Lakes Bay Health Centers's NPI number?

The NPI number for Great Lakes Bay Health Centers is 1871684761. It was assigned to this organization in the NPPES registry on September 27, 2006. The provider is also known as Ob/Gyn.

Where is Great Lakes Bay Health Centers located?

Great Lakes Bay Health Centers is located at 501 Lapeer, Saginaw, MI 48607. The listed phone number is (989) 759-6464.

What is Great Lakes Bay Health Centers's specialty?

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

Is Great Lakes Bay Health Centers enrolled in Medicare?

Yes. Great Lakes Bay Health Centers is registered in the Medicare PECOS enrollment system.

When is Great Lakes Bay Health Centers's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Michigan, Clinic/Group Practice) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Great Lakes Bay Health Centers?

According to the CMS Revalidation Reassignment List (October 2026 release), 228 clinicians in 20 Medicare specialties reassign their Medicare billing to Great Lakes Bay Health Centers. 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 Nurse Practitioner (45), Clinical Social Worker (41) and Family Practice (28). Of these, 5 practice at this address and 115 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Great Lakes Bay Health Centers accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Great Lakes Bay Health Centers 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 Great Lakes Bay Health Centers was last updated on September 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.