TMMG
NPI 1538353883
Internal Medicine in Youngstown, OH
About Tmmg NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TMMG (NPI 1538353883) is a healthcare organization registered as an internal medicine in Youngstown, Ohio and active in the NPI registry since August 2007. The organization holds a CLIA Waiver certificate valid through June 30, 2027 and lists Mourad Rostom, Partner/executive, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Other Identifiers 8
Group Practice 1
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
7Medicare enrollment records show 7 clinicians reassign Medicare billing to Tmmg, which bills Medicare for the services they deliver. Of these, 4 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (7)
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 Waiver 36D0342454
Trumbull Mahoning Medical Group II Inc · Austintown, OHFrequently 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 1538353883. It was assigned to this organization in the NPPES registry on August 30, 2007. The provider is also known as Tmmg.
Where is Trumbull Mahoning Medical Group, Inc. located?
Trumbull Mahoning Medical Group, Inc. is located at 20 Ohltown Rd, Youngstown, OH 44515. The listed phone number is (330) 797-9705.
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). Of these, 4 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Trumbull Mahoning Medical Group, Inc. hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 36D0342454) is associated with this NPI, valid through June 30, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
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.
# Tmmg · NPI 1538353883
Internal Medicine organization in Youngstown, Ohio. Organization record, active in the CMS NPPES registry since August 30, 2007.
## Identity
- **NPI:** 1538353883 (Entity type: Organization)
- **Enumerated:** August 30, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Legal business name:** Trumbull Mahoning Medical Group, Inc.
- **Organization subpart:** Yes (part of Trumbull Mahoning Medical Group, Inc.)
- **Authorized official:** Mourad Rostom, PARTNER/EXECUTIVE
## Practice location
- **Address:** 20 OHLTOWN RD, Youngstown, OH 44515-2331
- **Phone:** (330) 797-9705 · **Fax:** (330) 270-5997
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 7 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Internal Medicine (3), Nurse Practitioner (3), Family Practice (1); 4 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 17, 2014
- **Other identifiers:** Other 000000243183 (OH); Medicaid 0468677 (OH); Other =========-03 (OH); and 5 more
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1538353883) · Data from the CMS NPPES public registry.