IHA HEALTH SERVICE CORPORATION
NPI 1861069684
Internal Medicine - Gastroenterology in Ypsilanti, MI

Q: What is Iha Health Service Corporation's NPI number?

The NPI number for Iha Health Service Corporation is 1861069684. It was assigned to this organization in the NPPES registry on June 9, 2021. The provider is doing business as St Joseph Mercy Academic Gastrointestinal Center.

Q: What is Iha Health Service Corporation's specialty?

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

Active since June 09, 2021

5333 MCAULEY DR RM 2115, YPSILANTI, MI 48197(734) 712-3971(734) 887-8941 Get Directions Write a Review

NPPES record last updated: March 10, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 10, 2026, Jun 9, 2021 (2 updates tracked since 2021).

On this page

About Iha Health Service Corporation NPPES

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

IHA HEALTH SERVICE CORPORATION (NPI 1861069684), doing business as St Joseph Mercy Academic Gastrointestinal Center, is a healthcare organization registered as a gastroenterology in Ypsilanti, Michigan and active in the NPI registry since June 2021. The organization lists Cynthia A Elliott, Coo, as its authorized official.

NPPES Registry Identity

NPI1861069684

Entity TypeOrganization

Primary Taxonomy207RG0100X

Legal Business NameIHA HEALTH SERVICE CORPORATION

Location Address5333 MCAULEY DR RM 2115Ypsilanti, MI 48197-1097

Mailing Address24 Frank Lloyd Wright Dr Lbby J2000Ann Arbor, MI 48105-9484 · (734) 747-6766

Phone(734) 712-3971

Fax(734) 887-8941

Organization SubpartNo

Authorized OfficialCynthia A ElliottCoo · (734) 327-0872

Enumeration DateJune 9, 2021

Last NPPES UpdateMarch 10, 20262 updates tracked since enumeration

NPPES CertifiedMarch 10, 2026

✔ NPI 1861069684 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.

5333 MCAULEY DR RM 2115, Ypsilanti, MI 48197

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Other Names 1

Doing Business AsSt Joseph Mercy Academic Gastrointestinal Center

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)

Iha Health Service Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

1,476

Medicare enrollment records show 1,476 clinicians reassign Medicare billing to Iha Health Service Corporation, which bills Medicare for the services they deliver. Of these, 101 practice at this address and 838 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 52

Internal Medicine332

Nurse Practitioner250

Family Practice229

Obstetrics/Gynecology76

Hospitalist54

Clinical Social Worker50

Psychiatry47

Neurology36

44 other specialties402

Nearest to this location (20)

See all 1,476

Mary Abraham, NP

Nurse Practitioner

NPI 1841504438

5333 MCAULEY DRIVE SUITE 3001
Ypsilanti, MI 48197

(734) 712-8100

✔ PECOS✔ Accepts MedicareSame address

Huda Afaneh, M.D.

Obstetrics/Gynecology

NPI 1639532724

5333 MCAULEY DR RM 2110
Ypsilanti, MI 48197

(734) 802-5030

✔ PECOS✔ Accepts MedicareSame address

Kais Antonios, MD

Internal Medicine

NPI 1720665540

5333 MCAULEY DRIVE STE 4001
Ypsilanti, MI 48197

(734) 712-3980

✔ PECOS✔ Accepts MedicareSame address

Kojo Asantey, MD

Obstetrics/Gynecology

NPI 1992327258

5333 MCAULEY DR RM 2110
Ypsilanti, MI 48197

(248) 551-3000

✔ PECOSSame address

Sudha Ayala, DO

Internal Medicine

NPI 1073000568

5333 MCAULEY DR RM 4001
Ypsilanti, MI 48197

(734) 712-3980

✔ PECOS✔ Accepts MedicareSame address

Jamal Chirri, DO

Neurology

NPI 1659786739

5333 MCAULEY DR SUITE 6109
Ypsilanti, MI 48197

(419) 251-8019

✔ PECOS✔ Accepts MedicareSame address

Cody Ciaramitaro, MD

Neurology

NPI 1760004170

5333 MCAULEY DR. SUITE 6109
Ypsilanti, MI 48197

(937) 208-3424

✔ PECOS✔ Accepts MedicareSame address

Sarah Cookinham, MD

Infectious Disease

NPI 1487744512

5333 MCAULEY DR RM 5011
Ypsilanti, MI 48197

(734) 712-8600

✔ PECOS✔ Accepts MedicareSame address

Kristen Diez, NP

Nurse Practitioner

NPI 1912491796

5333 MCAULEY DRIVE
Ypsilanti, MI 48197

(734) 712-3971

✔ PECOS✔ Accepts MedicareSame address

Anna Dobosz, MD

Infectious Disease

NPI 1598022519

5333 MCAULEY DRIVE STE 5011
Ypsilanti, MI 48197

(734) 712-8600

✔ PECOS✔ Accepts MedicareSame address

Kassem Faraj, MD

Urology

NPI 1669908422

5333 MCAULEY DRIVE STE 3001
Ypsilanti, MI 48197

(734) 712-8100

✔ PECOS✔ Accepts MedicareSame address

Thomas Gravelyn, M.D.

Sleep Medicine

NPI 1760442636

5333 MCAULEY DR SUITE 3111
Ypsilanti, MI 48197

(734) 712-7688

✔ PECOS✔ Accepts MedicareSame address

Kalli Hewitt, DPM

Podiatry

NPI 1669032827

5333 MCAULEY DR. SUITE 4012
Ypsilanti, MI 48197

(734) 572-1141

✔ PECOS✔ Accepts MedicareSame address

Syed Razvi, MD

Pulmonary Disease

NPI 1306193735

5333 MCAULEY DR. SUITE 5011
Ypsilanti, MI 48197

(616) 267-8244

✔ PECOS✔ Accepts MedicareSame address

Lorien Shack, MD

Addiction Medicine

NPI 1164710406

5333 MCAULEY DR. SUITE 5011
Ypsilanti, MI 48197

(734) 712-8700

✔ PECOS✔ Accepts MedicareSame address

David Testrake, MD

General Surgery

NPI 1235549684

5333 MCAULEY DRIVE SUITE 2115
Ypsilanti, MI 48197

(734) 712-3971

✔ PECOS✔ Accepts MedicareSame address

Zijian Zheng, D.O.

Dermatology

NPI 1528599891

5333 MCAULEY DR RM 5003
Ypsilanti, MI 48197

(734) 712-3980

✔ PECOS✔ Accepts MedicareSame address

Ola Al Sous, M.D.

Hospitalist

NPI 1689985178

5333 MCAULEY DR 4001
Ypsilanti, MI 48197

(734) 712-3980

✔ PECOS✔ Accepts MedicareSame address

Vishal Bhagat, M.D.

Interventional Radiology

NPI 1003868894

5333 MCAULEY DR SUITE 6016
Ypsilanti, MI 48197

(734) 712-8350

✔ PECOS✔ Accepts MedicareSame address

Bruno Digiovine, M.D.

Critical Care (Intensivists)

NPI 1538237078

5333 MCAULEY DR RM 3111
Ypsilanti, MI 48197

(734) 712-7688

✔ PECOS✔ Accepts MedicareSame address

See all 1,476 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 Iha Health Service Corporation's NPI number?

The NPI number for Iha Health Service Corporation is 1861069684. It was assigned to this organization in the NPPES registry on June 9, 2021. The provider is doing business as St Joseph Mercy Academic Gastrointestinal Center.

Where is Iha Health Service Corporation located?

Iha Health Service Corporation is located at 5333 Mcauley Dr Rm 2115, Ypsilanti, MI 48197. The listed phone number is (734) 712-3971.

What is Iha Health Service Corporation's specialty?

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

Is Iha Health Service Corporation enrolled in Medicare?

Yes. Iha Health Service Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Iha Health Service Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1,476 clinicians in 52 Medicare specialties reassign their Medicare billing to Iha Health Service Corporation. 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 Internal Medicine (332), Nurse Practitioner (250) and Family Practice (229). Of these, 101 practice at this address and 838 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Iha Health Service Corporation accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Iha Health Service Corporation 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 Iha Health Service Corporation was last updated on March 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.