MARK ANTHONY ZAKI (M.D.) – Radiation Oncology Physician, NPI 1194089441
Radiation Oncology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
248 RADIATION ONCOLOGY in MI
Provider Addresses for MARK ANTHONY ZAKI (M.D.)
5400 MACKINAW RD
SAGINAW, MI 486049515
Phone: (989) 583-5250
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 7 Open Payments records for all available years, with a total value of $307.
Total Amount is formed as General ($307) + Research ($0) + Ownership ($0) = $307.
Last reported payment date: 2024-11-20 • Largest payer in this snapshot: Globus Medical, Inc. ($162).
Total Amount
$307
General + Research + Ownership
Payments
7
Total payment records
General Amount
$307
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-20
Latest reported date
Top Companies
Largest payers in this snapshot
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2017-07-10
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20170710000203 | I | Radiation Oncology | MI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 77014 | Ct guidance for insertion of radiation therapy fields | 1,249 | 123 | $0 |
| 77427 | Radiation treatment management, 5 treatment sessions | 331 | 99 | $0 |
| 77300 | Calculation of radiation therapy dose | 244 | 75 | $0 |
| 77334 | Design and construction of complex radiation treatment device | 214 | 73 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 105 | 100 | $0 |
Insurance plans in this area (ZIP 48604)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery | MI | |
| Family Practice | MI | |
| - | MI | |
| Orthopedic Surgery | MI | |
| Emergency Medicine, Hospitalist, Emergency Medicine, Internal Medicine | MI | |
| - | MI | |
| H E M A T O L O G Y/ O N C O L O G Y | MO | |
| Nurse Practitioner | MI | |
| Family Practice | WA | |
| P O D I A T R Y | MI |
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