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Dr. Jonathan Tammela, MD

Dr. Jonathan Tammela, MD

Medical Oncology*
25+ years of experience

Dr. Jonathan Tammela, MD is a medical oncologist in Santa Maria, CA and has over 25 years of experience in the medical field. Dr. Tammela has extensive experience in Gynecologic Neoplasms. He graduated from INDIANA UNIVERSITY / BLOOMINGTON in 1998. He is affiliated with medical facilities Dignity Health-Arroyo Grande Community Hospital and Marian Regional Medical Center. He is accepting new patients and telehealth appointments.

3.7 Star Rating
Based on 29 reviews 3.7 Star Rating (29 reviews)

Office Hours

Monday

8:30 am
to
5 pm

Tuesday

8:30 am
to
5 pm

Wednesday

8:30 am
to
5 pm

Thursday

8:30 am
to
5 pm

Friday

8:30 am
to
5 pm
Call to Book
1325 E Church St Ste 202
Santa Maria, CA 93454

Locations

Mission Hope Cancer Center

Mission Hope Cancer Center1325 E Church St Ste 202 Santa Maria, CA 93454
1
  • Call
  • Fax
  • Hours
    • Mon: 8:30am - 5:00pm
    • Tue: 8:30am - 5:00pm
    • Wed: 8:30am - 5:00pm
    • Thu: 8:30am - 5:00pm
    • Fri: 8:30am - 5:00pm
  • Directions
New Patient?
(805) 212-1043

Hospital Highlight

Dr. Tammela is affiliated with Marian Regional Medical Center Santa Maria, a highly rated hospital.

Dr. Tammela is a Healthgrades Choice provider in Obstetrics & Gynecology

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions
  • Explains Conditions WellPatients said this doctor explains conditions well. See reviews
  • Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Clean HospitalPatients said the hospital this doctor practices at is clean. See hospitals

Experience Check

Search for experience in a specific area

Dr. Tammela's Reviews

Likelihood to recommend Dr. Tammela

3.7

29 ratings, 8 with a written review
5 Star
66%
66%
4 Star
0%
0%
3 Star
0%
0%
2 Star
3%
3%
1 Star
31%
31%

Your trust is our top concern. Learn more.

We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

RecentHighestLowestMost Helpful
What went well
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • I didn't feel respected
  • Difficult to schedule appointment
  • Staff wasn't friendly
  • Long wait times
Helpful
Aug 22, 2023
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
6 people found this helpful
Helpful
Sarah Gossen – Jun 07, 2023
We are pleased to hear of your positive...Read More
×Post a ResponseAre you Dr. Jonathan Tammela, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 people found this helpful
Helpful
Annie G. – Jun 05, 2023
We are pleased to hear of your positive...Read More
×Post a ResponseAre you Dr. Jonathan Tammela, MD?
What went well
No results
What could be improved
No results
12 people found this helpful
Helpful
Tonya – Oct 19, 2020
×Post a ResponseAre you Dr. Jonathan Tammela, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
7 people found this helpful
Helpful
MS in Shafter, CA – Jun 12, 2019
×Post a ResponseAre you Dr. Jonathan Tammela, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
5 people found this helpful
Helpful
Sarah S. in WI – Jul 21, 2018
×Post a ResponseAre you Dr. Jonathan Tammela, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
7 people found this helpful
Helpful
KY in Skandia, MI – Mar 13, 2017
×Post a ResponseAre you Dr. Jonathan Tammela, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
24 people found this helpful
Helpful
nan oswald in Manitowoc, WI – Jan 21, 2016
×Post a ResponseAre you Dr. Jonathan Tammela, MD?

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About Me

Watch Dr. Tammela's Video

biography

Dr. Jonathan Tammela, MD is a medical oncologist in Santa Maria, CA and has over 25 years of experience in the medical field. Dr. Tammela has extensive experience in Gynecologic Neoplasms. He graduated from INDIANA UNIVERSITY / BLOOMINGTON in 1998....read more
  • Medical Oncology

  • Gynecologic Oncology

  • Obstetrics & Gynecology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Indiana University / Bloomington

    Medical School, 1998
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Dr. Tammela is a Healthgrades Choice provider in Obstetrics & Gynecology

    Read our methodology

    Affiliated Hospitals

    • Marian Regional Medical Center

      1400 E Church St
      Santa Maria, CA 93454
      Recipient of 4
      hospital awards

      America's 250 Best Hospitals Award™ (2023)

      Top 5% in the nation for consistently delivering clinical quality

      View all awards

      How patients felt about the care they received at this hospital.

      89%
      Patients said they were given information about recovering at home

      5% higher than the national average

      74%
      Patients said that doctors always listened to them and explained things well

      2% lower than the national average

      View all patient feedback
    • Dignity Health-Arroyo Grande Community Hospital

      345 S Halcyon Rd
      Arroyo Grande, CA 93420
      Recipient of 4
      hospital awards

      America's 250 Best Hospitals Award™ (2023)

      Top 5% in the nation for consistently delivering clinical quality

      View all awards
    Learn more about how Healthgrades measures Hospital Quality