Dr. Tim Grennan, MD

Dr. Tim Grennan, MD

Oncology  ·  
Male  ·  
Age 68
(1)
Save
Dr. Tim Grennan, MD is an oncology specialist in Marysville, CA and has been practicing for 42 years. He graduated from University Of Nebraska / College Of Medicine in 1976 and specializes in oncology and medical oncology.

726 4th St

Marysville, CA 95901

Contact Information

(530) 749-4461

Insurance Accepted

  • Kaiser Permanente

*Please verify this information when scheduling an appointment.

Learn about Dr. Grennan

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Grennan performs your care needs compared to other doctors.

Breast Diseases
normal
more than 62% of peers
Cancer
normal
more than 38% of peers
Gynecologic Cancer
normal
more than 36% of peers

Dr. Grennan's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

2  Specialties

  • Oncology
  • Medical Oncology

2  Board Certifications

  • Internal Medicine
    Accredited by: American Board of Internal Medicine*
  • Medical Oncology
    Accredited by: American Board of Internal Medicine*

31  Conditions Treated

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.

Education

  • University Of Nebraska / College Of Medicine
    Medical School | Graduated 1976

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Grennan has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Grennan does not have any memberships or affiliations listed. If you are Dr. Grennan and would like to add memberships or affiliations, please update your profile.

Dr. Grennan's Reviews

3.0
Likelihood of recommending Dr. Grennan to family and friends
1 review

Likelihood to Recommend (1)

  • 5
    (0)
  • 4
    (0)
  • 3
    (1)
  • 2
    (0)
  • 1
    (0)

Dr. Grennan's Performance

  • Trustworthiness

    GOOD
  • Explains condition(s) well

    GOOD
  • Answers questions

    VERY GOOD
  • Time well spent

    VERY GOOD

Office & Staff Performance

  • Scheduling

    GOOD
  • Office environment

    VERY GOOD
  • Staff friendliness

    EXCELLENT
  • Average wait time

    10 to 15 minutes
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