Quick answers
- Does George G. Zainea accept Medicare assignment?
- Yes. Medicare's clinician data says George G. Zainea accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does George G. Zainea see?
- In 2024, CMS data shows 276 Original Medicare patients and 410 services for George G. Zainea. This counts Original Medicare only and measures volume, not quality.
- What is George G. Zainea's NPI number?
- 1801906276. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for George G. Zainea, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 276 |
|---|---|
| Services billed to Medicare | 410 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)115 services
- Biopsy of large bowel using a flexible endoscope (45380)49 services
- Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk (G0121)35 services
- Diagnostic exam of anus using an endoscope (46600)34 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)27 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol69%
- High blood pressure68%
- Arthritis38%
- Diabetes31%
- Ischemic heart disease25%
- Depression20%
Practice locations
Addresses where George G. Zainea is enrolled with Medicare (CMS data updated October 2, 2026).
- 4500 Campus Ridge DrMidland, MI 48640 (989) 837‑9250
Group practices
Medicare enrollment lists George G. Zainea as a member of this group (CMS data updated October 2, 2026).
- MyMichigan Medical Center Midland507 clinicians in the group
Specialties
Find other Colorectal Surgery (Proctology) doctors in Michigan →
Other colorectal surgeons in Michigan
Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.
Other clinicians in MyMichigan Medical Center Midland
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801906276 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians