MARK ANTHONY ZAKI M.D.
NPI 1194089441
Radiology - Radiation Oncology in Saginaw, MI
About Mark Anthony Zaki M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK ANTHONY ZAKI M.D. (NPI 1194089441) is an individual radiation oncology provider in Saginaw, Michigan, licensed in Michigan (4301101358) and active in the NPI registry since July 2012. He is enrolled in Medicare PECOS, is affiliated with Covenant Medical Center, and is a graduate of Wayne State University School Of Medicine (2012).
NPPES Registry Identity
Specialties & Licenses
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
Mark Anthony Zaki 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
4Medicare enrollment records show Mark Zaki reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saginaw, MI 48604
- Reassigned Medicare billing, Michigan enrollment
- 720 clinicians in this Medicare group
Cass City, MI 48726
- Reassigned Medicare billing, Michigan enrollment
- 156 clinicians in this Medicare group
Marlette, MI 48453
- Reassigned Medicare billing, Michigan enrollment
- Also billed through NPI 1225495013 (Michigan)
- 59 clinicians in this Medicare group
Deckerville, MI 48427
- Reassigned Medicare billing, Michigan enrollment
- 154 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 19
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.
Covenant Medical Center
Acute Care Hospitals · Saginaw, MIScheurer Hospital
Critical Access Hospitals · Pigeon, MIHills & Dales General Hospital
Critical Access Hospitals · Cass City, MIMarlette Regional Hospital
Critical Access Hospitals · Marlette, 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.
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 48604
SAGINAW, MI 48604
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 Mark Zaki's NPI number?
The NPI number for Mark Zaki is 1194089441. It was assigned to this individual provider in the NPPES registry on July 2, 2012.
Where is Mark Zaki located?
Mark Zaki practices at 5400 Mackinaw Rd, Saginaw, MI 48604. The listed phone number is (989) 583-5250.
What is Mark Zaki's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Mark Zaki enrolled in Medicare?
Yes. Mark Zaki 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 Mark Zaki's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Zaki reassigns Medicare benefits to 4 organizations: Covenant Medical Center, Inc (Saginaw, MI), Hills & Dales General Hospital, Inc. (Cass City, MI), Marlette Regional Hospital (Marlette, MI) and Deckerville Community Hospital, Inc. (Deckerville, 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 Mark Zaki's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Zaki accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Mark Zaki 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 Mark Zaki affiliated with any hospitals?
According to CMS data, Mark Zaki is affiliated with Covenant Medical Center, Scheurer Hospital, Hills & Dales General Hospital and Marlette Regional Hospital.
When was this NPI record last updated?
The NPPES record for Mark Zaki was last updated on March 26, 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.