43 Years of Experience
Accepting patients
Who is Dr. Grennan, Hematology / Oncology Specialist in Sacramento, CA?
Dr. Tim Grennan, MD is a Hematology / Oncology Specialist, who primarily practices in Sacramento, CA. He has been practicing for over 43 years and is board certified by the American Board of Internal Medicine. Dr. Grennan graduated from University of Nebraska College of Medicine and completed his residency at Univ Of Mi Hosps & Hlth Ctrs, Hematology-Internal Medicine; Univ Of Mi Hosps & Hlth Ctrs, Internal Medicine. Dr. Grennan is fluent in English, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Grennan’s office at (916) 973-5000.
Where did Dr. Grennan go to medical school and complete their residency?
Residency: Univ Of Mi Hosps & Hlth Ctrs, Hematology-Internal Medicine; Univ Of Mi Hosps & Hlth Ctrs, Internal Medicine
Medical School: University of Ne Coll of Med, Omaha Ne | University of Nebraska College of Medicine
Is Dr. Grennan board certified in Hematology / Oncology Specialist?
Yes, Dr. Tim Grennan, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Grennan speak?
Dr. Grennan and their clinical team can communicate with patients in the following languages:
English
Which conditions does Dr. Grennan treat as a Hematology / Oncology Specialist?
As a Hematology / Oncology Specialist, conditions treated by a Dr. Tim Grennan may include:
Please contact Dr. Grennan's office for more information or to schedule a consultation.
Which procedures does Dr. Grennan perform as a Hematology / Oncology Specialist?
As a Hematology / Oncology Specialist, procedures performed by a Dr. Tim Grennan may include:
- 3D Conformal Radiotherapy
- Adaptive Radiation Therapy (ART)
- Adrenalectomy
- Blood Thinning Therapy / Anticoagulation
- Blood Transfusion Consultation
- Blood Transfusion Follow Up
- Bone Excision
- Bone Grafting
For detailed information, please contact Dr. Grennan's office.
Does Dr. Grennan accept my insurance?
Please contact Dr. Grennan's office to confirm accepted insurance plans.
Where is Dr. Grennan's office located?
What is Dr. Grennan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Grennan's National Provider Identifier (NPI) number is 1972681617.
What common questions do patients ask about Dr. Grennan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Grennan
What is Dr. Tim Grennan's specialty?
Dr. Grennan is a Hematology / Oncology Specialist near Sacramento, CA. An internist doctor of osteopathy specializing in the combined treatment of hematology and oncology disorders. A doctor of osteopathy who is board eligible or certified by the American Osteopathic Board of Internal Medicine was previously able to obtain a Certificate of Special Qualifications in Hematology and Oncology; however, this certificate is no longer available. Contact Dr. Grennan to book an appointment today.
Is this Dr. Tim Grennan affiliated with a ranked Castle Connolly Top Hospital?
No, Grennan is not affiliated with a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Hematology / Oncology Specialist?
Explore Hematology / Oncology Specialist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Tim Grennan accepting new patients in Sacramento, CA?
Yes, Dr. Tim Grennan is accepting new patients at this time.
Does Dr. Tim Grennan offer online booking?
Please contact Dr. Grennan's office at (916) 973-5000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Tim Grennan?
Please contact Dr. Grennan's office at (916) 973-5000 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Tim Grennan have?
Dr. Tim Grennan is certified by the American Board of Internal Medicine.
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