MAHMOUD ISSEH MD
NPI 1124550108
Internal Medicine in Ypsilanti, MI
About Mahmoud Isseh Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAHMOUD ISSEH MD (NPI 1124550108) is an individual internal medicine provider in Ypsilanti, Michigan, licensed in Michigan (4301502105) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Chelsea Hospital, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mahmoud Isseh Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Mahmoud Isseh reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ypsilanti, MI 48197
- Reassigned Medicare billing, Michigan enrollment
- 1,480 clinicians in this Medicare group
Sacramento, CA 95816
- Reassigned Medicare billing, California enrollment
- 4,479 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Chelsea Hospital
Acute Care Hospitals · Chelsea, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48197 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
YPSILANTI, MI 48197
YPSILANTI, MI 48197
YPSILANTI, MI 48197
YPSILANTI, MI 48197
YPSILANTI, MI 48197
YPSILANTI, MI 48197
YPSILANTI, MI 48197
YPSILANTI, MI 48197
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 Mahmoud Isseh's NPI number?
The NPI number for Mahmoud Isseh is 1124550108. It was assigned to this individual provider in the NPPES registry on March 30, 2017.
Where is Mahmoud Isseh located?
Mahmoud Isseh practices at Iha Hospital Medicine Services 5301 Mcauley Drive, Ypsilanti, MI 48197. The listed phone number is (734) 712-8676.
What is Mahmoud Isseh's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mahmoud Isseh enrolled in Medicare?
Yes. Mahmoud Isseh is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mahmoud Isseh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mahmoud Isseh reassigns Medicare benefits to 2 organizations: Iha Health Services Corporation (Ypsilanti, MI) and Sutter Bay Medical Foundation (Sacramento, CA). Each 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 Mahmoud Isseh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mahmoud Isseh affiliated with any hospitals?
According to CMS data, Mahmoud Isseh is affiliated with Chelsea Hospital.
When was this NPI record last updated?
The NPPES record for Mahmoud Isseh was last updated on April 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Mahmoud Isseh, MD · NPI 1124550108
Internal Medicine physician in Ypsilanti, Michigan. Individual provider, active in the CMS NPPES registry since March 30, 2017.
## Identity
- **NPI:** 1124550108 (Entity type: Individual)
- **Enumerated:** March 30, 2017
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 4301502105 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** IHA HOSPITAL MEDICINE SERVICES, 5301 MCAULEY DRIVE, Ypsilanti, MI 48197
- **Phone:** (734) 712-8676
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Iha Health Services Corporation (NPI 1235659574, Ypsilanti, MI); Sutter Bay Medical Foundation (NPI 1003267196, Sacramento, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** April 28, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1124550108) · Data from the CMS NPPES public registry.