1. Home
  2. Directory
  3. Ohio
  4. Youngstown
  5. Internal Medicine
  6. NPI Profile

TMMG
NPI 1578757472
Internal Medicine in Youngstown, OH

Active since September 04, 2007
901 TRAILWOOD DR, YOUNGSTOWN, OH 44512(330) 726-3000(330) 726-2612 Get Directions Write a Review

NPPES record last updated: January 17, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Tmmg NPPES

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

TMMG (NPI 1578757472) is a healthcare organization registered as an internal medicine in Youngstown, Ohio and active in the NPI registry since September 2007. The organization lists Mourad Rostom, Ceo/president, as its authorized official.

NPPES Registry Identity

NPI1578757472
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameTRUMBULL MAHONING MEDICAL GROUP, INC.
Location Address901 TRAILWOOD DRYoungstown, OH 44512-5008
Mailing Address901 Trailwood DrYoungstown, OH 44512-5008 · (330) 726-3000 · Fax (330) 726-2612
Phone(330) 726-3000
Fax(330) 726-2612
Organization SubpartYes
Authorized OfficialMourad RostomCeo/president · (330) 372-8820
Enumeration DateSeptember 4, 2007
Last NPPES UpdateJanuary 17, 2014
✔ NPI 1578757472 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedFamily MedicineTaxonomy 207Q00000X
901 TRAILWOOD DR, Youngstown, OH 44512
Open in Google Maps ↗

Other Names 1

Doing Business AsTmmg

Other Identifiers 8

Other1426141OH · Highmark Bc/bs Pa
Medicare PINCK8621OH
Other=========002OH · Tricare/healthnet
Other000000243183OH · Anthem Bc/bs Ohio
Other=========-03OH · Ohio Workers Comp
Medicaid0468677OH
Medicare PIN9330562
Other=========025OH · Medical Mutual Of Ohio

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tmmg is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Tmmg, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (7)

Dan Olson, M.D.
Internal Medicine
NPI 1417981077
2600 STATE ROUTE 5
Cortland, OH 44410
(330) 372-8800
✔ PECOS✔ Accepts Medicare12 mi
Ruth Quarles, M.D.
Family Practice
NPI 1508892811
2600 STATE ROUTE 5
Cortland, OH 44410
(330) 372-8800
✔ PECOS✔ Accepts Medicare12 mi
Sameh Youssef, M.D.
Internal Medicine
NPI 1023042850
2600 STATE ROUTE 5
Cortland, OH 44410
(330) 372-8800
✔ PECOS✔ Accepts Medicare12 mi
Charmaine Brown, FNP-C
Nurse Practitioner
NPI 1942722418
1350 E MARKET ST
Warren, OH 44483
(330) 841-9551
✔ PECOS✔ Accepts Medicare17 mi
Allison Orndorff, MSN, CRNP, NP-C
Nurse Practitioner
NPI 1508528175
2600 ELM RD NE
Cortland, OH 44410
(330) 372-8810
✔ PECOS✔ Accepts Medicare20 mi
Mary Fontanarosa, M.D.
Internal Medicine
NPI 1902824188
2600 STATE ROUTE 5
Cortland, OH 44410
(330) 372-8800
✔ PECOS✔ Accepts Medicare24 mi
Morgan Churchwell, CNP
Nurse Practitioner
NPI 1073351649
1 MEMORY LN
Garrettsville, OH 44231
(330) 527-4852
✔ PECOS✔ Accepts Medicare29 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 Trumbull Mahoning Medical Group, Inc.'s NPI number?

The NPI number for Trumbull Mahoning Medical Group, Inc. is 1578757472. It was assigned to this organization in the NPPES registry on September 4, 2007. The provider is doing business as Tmmg.

Where is Trumbull Mahoning Medical Group, Inc. located?

Trumbull Mahoning Medical Group, Inc. is located at 901 Trailwood Dr, Youngstown, OH 44512. The listed phone number is (330) 726-3000.

What is Trumbull Mahoning Medical Group, Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Trumbull Mahoning Medical Group, Inc. enrolled in Medicare?

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

How many clinicians bill Medicare through Trumbull Mahoning Medical Group, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 3 Medicare specialties reassign their Medicare billing to Trumbull Mahoning 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. The largest specialties are Internal Medicine (3), Nurse Practitioner (3) and Family Practice (1). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Trumbull Mahoning Medical Group, Inc. was last updated on January 17, 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.