DR. AMMAR ZAHID HASSAN M.D
NPI 1497072243
Internal Medicine - Gastroenterology in Wyoming, MI
About Dr. Ammar Zahid Hassan M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AMMAR ZAHID HASSAN M.D (NPI 1497072243) is an individual gastroenterology provider in Wyoming, Michigan, licensed in Michigan (4301111716) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and maintains a secondary practice location in Temple.
NPPES Registry Identity
Specialties & Licenses 2
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. Ammar Zahid Hassan M.d 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 Ammar Hassan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Wyoming, MI 49519
- Reassigned Medicare billing, Michigan enrollment
- 685 clinicians in this Medicare group
Lansing, MI 48915
- Reassigned Medicare billing, Michigan enrollment
- 84 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 12
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Spectrum Health
Acute Care Hospitals · Grand Rapids, MIMercy Health Saint Mary's
Acute Care Hospitals · Grand Rapids, MIUniversity Of Michigan Health - West
Acute Care Hospitals · Wyoming, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49519 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WYOMING, MI 49519
WYOMING, MI 49519
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 Ammar Hassan's NPI number?
The NPI number for Ammar Hassan is 1497072243. It was assigned to this individual provider in the NPPES registry on May 3, 2010.
Where is Ammar Hassan located?
Ammar Hassan practices at 2093 Health Dr SW Ste 302, Wyoming, MI 49519. The listed phone number is (616) 252-5775.
What is Ammar Hassan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Ammar Hassan enrolled in Medicare?
Yes. Ammar Hassan 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 Ammar Hassan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ammar Hassan reassigns Medicare benefits to 2 organizations: Metropolitan Hospital (Wyoming, MI) and Edward W. Sparrow Hospital Association (Lansing, MI). 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 Ammar Hassan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ammar Hassan accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health and UnitedHealthcare list Ammar Hassan 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 Ammar Hassan affiliated with any hospitals?
According to CMS data, Ammar Hassan is affiliated with Spectrum Health, Mercy Health Saint Mary's and University Of Michigan Health - West.
When was this NPI record last updated?
The NPPES record for Ammar Hassan was last updated on February 5, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.