DR. GREGORY C HAZEN MD
NPI 1174528863
Ophthalmology in Saginaw, MI
About Dr. Gregory C Hazen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY C HAZEN MD (NPI 1174528863) is an individual ophthalmology provider in Saginaw, Michigan, licensed in Michigan (4301065631) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Covenant Medical Center, and is a graduate of Wayne State University School Of Medicine (1995).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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. Gregory C Hazen 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 Reassignment
Medicare enrollment records show Gregory Hazen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saginaw, MI 48604
- Reassigned Medicare billing, Michigan enrollment
- 9 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 18
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.
Covenant Medical Center
Acute Care Hospitals · Saginaw, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48604 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAGINAW, MI 48604
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 Gregory Hazen's NPI number?
The NPI number for Gregory Hazen is 1174528863. It was assigned to this individual provider in the NPPES registry on June 17, 2005.
Where is Gregory Hazen located?
Gregory Hazen practices at 5161 Cardinal Park Drive, Saginaw, MI 48604. The listed phone number is (989) 797-2400.
What is Gregory Hazen's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Gregory Hazen enrolled in Medicare?
Yes. Gregory Hazen 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 organization bills Medicare for Gregory Hazen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Hazen reassigns Medicare benefits to Andersen Eye Associates, Plc (Saginaw, MI). The 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 Gregory Hazen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Hazen accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and Blue Cross Blue Shield of Wyoming and 13 other insurers list Gregory Hazen 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 Gregory Hazen affiliated with any hospitals?
According to CMS data, Gregory Hazen is affiliated with Covenant Medical Center.
When was this NPI record last updated?
The NPPES record for Gregory Hazen was last updated on April 7, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.