Dr. Tim William Grennan MD is male, has 33 years of experience and practices in Internal Medicine, Medical Oncology, and Hematology & Oncology.
A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
- Currently 4 of 4 stars
The overall average patient rating of Dr. Tim Grennan is Excellent. Dr. Grennan has been reviewed by 1 patients who have provided 0 comments. The rating is 4 out of 4 stars.
Specialties & Research
Dr. Tim Grennan, MD is board certified in Internal Medicine and Medical Oncology.
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Education & Awards
Dr. Grennan graduated from University of Nebraska, Omaha.More Education & Awards
Dr. Grennan has 4 hospital affiliations:
- Kaiser Foundation Hospital - Valley Medical Center
- Kaiser Foundation Hospital - Sacramento
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