Tim Grennan, MD
Oncology
20+ years in practiceNPI: 1972681617Licensed in CA
About
Bio coming soon.
Are you Tim Grennan, MD?
Claim your profile
Verify your identity, update your credentials, and take ownership of your listing on PBCMMG.
Credentials & Recognition
Specialties
Oncology
NPI sub-specialties
Internal Medicine, Hematology & Oncology207RH0003X
Practice Signals
Editorial signals beyond credentials. Patient transparency over opacity. See methodology.
Mid-Level (PA/NP) Use
Doctor-led visits
Years in Practice
20+ years
Estimated from NPI enumeration date
Other Oncology Doctors near California
View all →Frequently Asked Questions about Dr. Tim Grennan, MD
Where does Dr. Tim Grennan, MD practice?+
Dr. Tim Grennan, MD practices in California, CA. 2025 MORSE AVE
SACRAMENTO, CA 958252115.
What is Dr. Tim Grennan, MD's phone number?+
Dr. Tim Grennan, MD's practice phone is 916-973-5000. Office contact information is verified on the PBCMMG profile.
What does Dr. Tim Grennan, MD specialize in?+
Dr. Tim Grennan, MD's primary specialty is Oncology.
Is Dr. Tim Grennan, MD board certified?+
Board certification status for Dr. Tim Grennan, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. Tim Grennan, MD been practicing?+
Dr. Tim Grennan, MD has been in active practice for 20+ years, based on NPI enumeration and state licensing records.
What is Dr. Tim Grennan, MD's NPI number?+
Dr. Tim Grennan, MD's National Provider Identifier (NPI) is 1972681617, registered in the federal NPPES registry.
Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards
See an error? info@pbcmmg.com
Are you Tim Grennan, MD?
Claim & complete your profile →Verify identity, upload proof, and update credentials. Approval typically 1-2 business days.