STEWARD MEDICAL GROUP, INC
NPI 1639815590
Pathology - Anatomic Pathology & Clinical Pathology in Warren, OH

Q: What is Steward Medical Group, Inc's NPI number?

The NPI number for Steward Medical Group, Inc is 1639815590. It was assigned to this organization in the NPPES registry on May 12, 2022.

Q: What is Steward Medical Group, Inc's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Active since May 12, 2022

1350 E MARKET ST, WARREN, OH 44483(330) 841-9011 Get Directions Write a Review

NPPES record last updated: May 12, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Steward Medical Group, Inc NPPES

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

STEWARD MEDICAL GROUP, INC (NPI 1639815590) is a healthcare organization registered as an anatomic pathology & clinical pathology in Warren, Ohio and active in the NPI registry since May 2022. The organization lists Amy Marie Guay, President, as its authorized official.

NPPES Registry Identity

NPI1639815590

Entity TypeOrganization

Primary Taxonomy207ZP0102X

Legal Business NameSTEWARD MEDICAL GROUP, INC

Location Address1350 E MARKET STWarren, OH 44483-6608

Mailing Address9 Galen St Ste 240Watertown, MA 02472-4522

Phone(330) 841-9011

Organization SubpartNo

Authorized OfficialAmy Marie GuayPresident · (617) 952-5891

Enumeration DateMay 12, 2022

NPPES CertifiedMay 12, 2022

✔ NPI 1639815590 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZP0102X

Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

1350 E MARKET ST, Warren, OH 44483

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Steward Medical Group, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 4 clinicians reassign Medicare billing to Steward Medical Group, Inc, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (4)

Nadeem Malik, MD

Pathology

NPI 1306822275

1622 E MARKET ST
Warren, OH 44483

(330) 399-7215

✔ PECOS✔ Accepts Medicare0.1 mi

Manju Nath, M.D.

Pathology

NPI 1346252012

100 MEDICAL BLVD
Canonsburg, PA 15317

(724) 745-3916

✔ PECOS✔ Accepts Medicare75 mi

Robert Bagdasaryan, M.D.

Pathology

NPI 1306045554

88 WASHINGTON ST
Taunton, MA 02780

(508) 282-7000

✔ PECOS✔ Accepts Medicare505 mi

Matthew Turner, M.D.

Pathology

NPI 1639398787

789 CENTRAL AVE
Dover, NH 03820

(603) 740-2558

✔ PECOS✔ Accepts Medicare527 mi

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 Steward Medical Group, Inc's NPI number?

The NPI number for Steward Medical Group, Inc is 1639815590. It was assigned to this organization in the NPPES registry on May 12, 2022.

Where is Steward Medical Group, Inc located?

Steward Medical Group, Inc is located at 1350 E Market St, Warren, OH 44483. The listed phone number is (330) 841-9011.

What is Steward Medical Group, Inc's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Steward Medical Group, Inc enrolled in Medicare?

Yes. Steward Medical Group, Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Steward Medical Group, Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians, all in Pathology, reassign their Medicare billing to Steward Medical Group, Inc. 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. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Steward Medical Group, Inc was last updated on May 12, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.