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Internist, Oncology Specialist (cancer)
35 years of experience
License & Identifications

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).

Learn more about Dr. Tim Grennan:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

5.0
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(2)
Patient comments (0)

The overall average patient rating of Dr. Tim Grennan is Excellent. Dr. Grennan has been reviewed by 2 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
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Promptness 5.0
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Courteous Staff 5.0
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Accurate Diagnosis 5.0
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Bedside Manner 5.0
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Spends Time with Me 5.0
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Specialties & Research

Dr. Tim Grennan, MD is board certified in Internal Medicine and Medical Oncology.


Education & Awards

Dr. Grennan graduated from University of Nebraska, Omaha.


Affiliations

Dr. Grennan has 4 hospital affiliations:

  • Kaiser Foundation Hospital - Sacramento 
  • Kaiser Foundation Hospital - Roseville 

> > > > Dr. Tim Grennan, MD

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Additional Information
Dr. Tim William Grennan MD is a male Internist, has 35 years of experience and practices in Internal Medicine and Medical Oncology.
Where does Dr. Tim W. Grennan practice?
Dr. Tim Grennan has 1 office location.
Dr. Tim Grennan practices Internal Medicine and Medical Oncology near Sacramento, CA.
See Sacramento Internists and Sacramento Oncologists.