DR. MOHAMED AYMAN MD
NPI 1679131957
Internal Medicine - Pulmonary Disease in Saginaw, MI
About Dr. Mohamed Ayman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MOHAMED AYMAN MD (NPI 1679131957) is an individual pulmonary disease provider in Saginaw, Michigan, licensed in Michigan (4301507126) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS, is affiliated with Ascension St Mary's Hospital, and maintains a secondary practice location in Pontiac.
NPPES Registry Identity
Specialties & Licenses 4
Secondary Practice Location 1
Accepted Insurance
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
Dr. Mohamed Ayman 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
8Medicare enrollment records show Mohamed Ayman reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saginaw, MI 48601
- Reassigned Medicare billing, Michigan enrollment
- 125 clinicians in this Medicare group
Saginaw, MI 48602
- Reassigned Medicare billing, Michigan enrollment
- 194 clinicians in this Medicare group
Midland, MI 48640
- Reassigned Medicare billing, Michigan enrollment
- 197 clinicians in this Medicare group
Waterford, MI 48328
- Reassigned Medicare billing, Michigan enrollment
- 10 clinicians in this Medicare group
Pontiac, MI 48342
- Reassigned Medicare billing, Michigan enrollment
- 68 clinicians in this Medicare group
Rochester Hills, MI 48307
- Reassigned Medicare billing, Michigan enrollment
Grayling, MI 49738
- Reassigned Medicare billing, Michigan enrollment
- 596 clinicians in this Medicare group
Kincheloe, MI 49788
- Reassigned Medicare billing, Michigan enrollment
- 185 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 3
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension St Mary's Hospital
Acute Care Hospitals · Saginaw, MIMclaren Lapeer Region
Acute Care Hospitals · Lapeer, MIMclaren Oakland
Acute Care Hospitals · Pontiac, MIAscension Providence Rochester Hospital
Acute Care Hospitals · Rochester, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48601 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.
SAGINAW, MI 48601
SAGINAW, MI 48601
SAGINAW, MI 48601
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 Mohamed Ayman's NPI number?
The NPI number for Mohamed Ayman is 1679131957. It was assigned to this individual provider in the NPPES registry on June 3, 2019.
Where is Mohamed Ayman located?
Mohamed Ayman practices at 800 S Washington Ave, Saginaw, MI 48601. The listed phone number is (989) 907-8000.
What is Mohamed Ayman's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Mohamed Ayman enrolled in Medicare?
Yes. Mohamed Ayman 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 Mohamed Ayman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mohamed Ayman reassigns Medicare benefits to 8 organizations: Mymichigan Medical Center Saginaw (Saginaw, MI), Saginaw Cooperative Hospitals, Inc (Saginaw, MI), Mymichigan Medical Group (Midland, MI), Michigan Internal Medicine Associates,p.C. (Waterford, MI), Fadi Salloum MD PC (Pontiac, MI) and 3 more organizations, listed in the Medicare section above. 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 Mohamed Ayman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mohamed Ayman accept?
Health plans from Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Mohamed Ayman 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.
Is Mohamed Ayman affiliated with any hospitals?
According to CMS data, Mohamed Ayman is affiliated with Ascension St Mary's Hospital, Mclaren Lapeer Region, Mclaren Oakland and Ascension Providence Rochester Hospital.
When was this NPI record last updated?
The NPPES record for Mohamed Ayman was last updated on March 12, 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.
# Dr. Mohamed Ayman, MD · NPI 1679131957
Pulmonary Disease physician in Saginaw, Michigan. Individual provider, active in the CMS NPPES registry since June 3, 2019.
## Identity
- **NPI:** 1679131957 (Entity type: Individual)
- **Enumerated:** June 3, 2019
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** 4301507126 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 800 S WASHINGTON AVE, Saginaw, MI 48601-2551
- **Phone:** (989) 907-8000
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Mymichigan Medical Center Saginaw (NPI 1871507509, Saginaw, MI); Saginaw Cooperative Hospitals, Inc (NPI 1184711038, Saginaw, MI); Mymichigan Medical Group (NPI 1568412948, Midland, MI); Michigan Internal Medicine Associates,p.C. (NPI 1902818230, Waterford, MI); Fadi Salloum MD PC (NPI 1053510446, Pontiac, MI); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** March 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1679131957) · Data from the CMS NPPES public registry.