John Bartnik
Hematology & Oncology Physician · MD · Oncologist in Saginaw, MI
Provider details
- Specialty
- Hematology & Oncology Physician
- Credentials
- MD
- NPI number
- 1740211275
Checked against the CMS National Provider Identifier registry on October 2, 2026.
Medicare information
- Graduated
- 1983
- Also practices
- Internal Medicine
- Group practice
- Oncology Hematology Associates of Saginaw Valley, P.c.
- Hospital affiliations
- Covenant Medical Center, Saginaw, MI · Medicare rating 2 out of 5 stars
- Mymichigan Medical Center Saginaw, Saginaw, MI · Medicare rating 3 out of 5 stars
- Hills & Dales General Hospital, Cass City, MI · Medicare rating 4 out of 5 stars
- Scheurer Hospital, Pigeon, MI
- Mymichigan Medical Center West Branch, West Branch, MI · Medicare rating 5 out of 5 stars
- Medicare
- Accepts Medicare assignment (the Medicare-approved amount as full payment)
From Medicare’s public Care Compare data (Doctors and Clinicians), checked October 3, 2026. Ratings are Medicare’s, not Know Cancer’s. Medicare Care Compare
About
John Bartnik, MD, is a hematology & oncology physician in Saginaw, Michigan, registered with the federal National Provider Identifier (NPI) registry. Contact the provider directly to confirm services, hours and accepted insurance.
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