DR. HASSAN M NASIR D.O.
NPI 1376771626
Allergy & Immunology in Gladwin, MI
About Dr. Hassan M Nasir D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HASSAN M NASIR D.O. (NPI 1376771626) is an individual allergy & immunology provider in Gladwin, Michigan, licensed in Michigan (5101018446) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Promedica Coldwater Regional Hospital, and is a graduate of Michigan State University College Of Osteopathic Medicine (2009).
NPPES Registry Identity
Specialties & Licenses 3
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. Hassan M Nasir D.o. 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
6Medicare enrollment records show Hassan Nasir reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Gladwin, MI 48624
- Reassigned Medicare billing, Michigan enrollment
- 2 clinicians in this Medicare group
Owosso, MI 48867
- Reassigned Medicare billing, Michigan enrollment
- 328 clinicians in this Medicare group
Flint, MI 48507
- Reassigned Medicare billing, Michigan enrollment
- 246 clinicians in this Medicare group
Livonia, MI 48152
- Reassigned Medicare billing, Michigan enrollment
- 21 clinicians in this Medicare group
Litchfield, MI 49252
- Reassigned Medicare billing, Michigan enrollment
- 174 clinicians in this Medicare group
West Palm Beach, FL 33409
- Reassigned Medicare billing, Florida enrollment
- 373 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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Promedica Coldwater Regional Hospital
Acute Care Hospitals · Coldwater, MIMclaren Bay Region
Acute Care Hospitals · Bay City, MIMymichigan Medical Center West Branch
Acute Care Hospitals · West Branch, MISoutheast Michigan Surgical Hospital LLC
Acute Care Hospitals · Warren, MIMymichigan Medical Center Gladwin
Critical Access Hospitals · Gladwin, MIOther Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GLADWIN, MI 48624
GLADWIN, MI 48624
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 Hassan Nasir's NPI number?
The NPI number for Hassan Nasir is 1376771626. It was assigned to this individual provider in the NPPES registry on June 25, 2009.
Where is Hassan Nasir located?
Hassan Nasir practices at 1277 E Cedar Ave, Gladwin, MI 48624. The listed phone number is (989) 343-5037.
What is Hassan Nasir's specialty?
The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.
Is Hassan Nasir enrolled in Medicare?
Yes. Hassan Nasir 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 Hassan Nasir's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hassan Nasir reassigns Medicare benefits to 6 organizations: Elite Allergy PLLC (Gladwin, MI), Memorial Hospital (Owosso, MI), Jawad A Shah, MD PC (Flint, MI), Premier Medicine PC (Livonia, MI), Community Health Center Of Branch County (Litchfield, MI) and 1 more organization, 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 Hassan Nasir's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Hassan Nasir accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list Hassan Nasir 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 Hassan Nasir affiliated with any hospitals?
According to CMS data, Hassan Nasir is affiliated with Promedica Coldwater Regional Hospital, Mclaren Bay Region, Mymichigan Medical Center West Branch, Southeast Michigan Surgical Hospital LLC and Mymichigan Medical Center Gladwin.
When was this NPI record last updated?
The NPPES record for Hassan Nasir was last updated on March 16, 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. Hassan M Nasir, D.O. · NPI 1376771626
Allergy & Immunology physician in Gladwin, Michigan. Individual provider, active in the CMS NPPES registry since June 25, 2009.
## Identity
- **NPI:** 1376771626 (Entity type: Individual)
- **Enumerated:** June 25, 2009
- **Primary specialty:** Allergy & Immunology · taxonomy 207K00000X
- **State license:** 5101018446 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1277 E CEDAR AVE, Gladwin, MI 48624-7004
- **Phone:** (989) 343-5037
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Elite Allergy PLLC (NPI 1003687385, Gladwin, MI); Memorial Hospital (NPI 1609030600, Owosso, MI); Jawad A Shah, MD PC (NPI 1942402391, Flint, MI); Premier Medicine PC (NPI 1376623736, Livonia, MI); Community Health Center Of Branch County (NPI 1518338359, Litchfield, MI); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Michigan State University College Of Osteopathic Medicine, class of 2009
## Record status
- **NPPES last updated:** March 16, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1376771626) · Data from the CMS NPPES public registry.