Dr. Tim William Grennan MD is a male Internist, has 33 years of experience and practices in Internal Medicine, Medical Oncology, and Hematology & Oncology.
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- Currently 4 of 4 stars
The overall average patient rating of Dr. Tim Grennan is Excellent.
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 - Roseville
- Kaiser Foundation Hospital - Sacramento