Jonathan E. Tammela
Advanced in Ovarian Carcinosarcoma

Dr. Jonathan E. Tammela

Obstetrics and Gynecology | Oncology
CommonSpirit Health
Surgical Oncology - Dignity Health - Santa Maria, CA
1325 E Church St, Suite 202, 
Santa Maria, CA 
Accepting New Patients

Advanced in Ovarian Carcinosarcoma
CommonSpirit Health
Surgical Oncology - Dignity Health - Santa Maria, CA
1325 E Church St, Suite 202, 
Santa Maria, CA 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

"Jonathan Tammela, MD, FACOG, is a board-certified Gynecologic Oncologist Surgeon. Dr. Tammela provides highly specialized care in the diagnosis, treatment, and management of cancers affecting the female reproductive tract. He is highly skilled at minimally-invasive Robotic Surgery.""I understand that being faced with a diagnosis of cancer or a complex gynecologic condition can cause patients to feel frightened or anxious. For this reason, timely access to consultation and treatment is my priority. I am committed to offering patients the most up-to date,evidence-based therapies, including Robotic Surgery when appropriate. I believe in the importance of clearly explaining all treatment options to the patient, so that together we can make the best plan of care for her unique needs.""—Jonathan Tammela, MD, FACOGA trailblazer in his field, Dr. Tammela established the first full-time Robotic Gynecologic Oncology program in Northeast Wisconsin and has performed more than 1000 robotic surgeries. Dr. Tammela completed his undergraduate studies in Hawaii and earned his medical degree from Indiana University School of Medicine. He completed his residency in OB/GYN at the University of Florida, Jacksonville and then completed subspecialty training in Gynecologic Oncology at Roswell Park Cancer Institute in Buffalo, New York. Dr. Tammela treats all types of gynecologic cancers and is triple board certified in Gynecologic Oncology, Hospice and Palliative Care, and Obstetrics and Gynecology.He has won several awards including “Innovator of the Year Award”for cancer treatment and robotic surgery.".

Dr. Tammela is rated as an Advanced provider by MediFind in the treatment of Ovarian Carcinosarcoma. His top areas of expertise are Malignant Mixed Mullerian Tumor, Endometrial Cancer, Endometrial Stromal Sarcoma, Desmoplastic Small Round Cell Tumor, and Oophorectomy.

His clinical research consists of participating in 6 clinical trials. MediFind looks at clinical research from the past 15 years.

Graduate Institution
Indiana University School Of Medicine
Specialties
Obstetrics and Gynecology
Oncology
Licenses
Obstetrics & Gynecology in WI
Board Certifications
OB & Gyn (Sub: Hospice And Palliative Medicine)
Obstetrics & Gynecology
OB & Gyn (Sub: Gynecologic Oncology)
Fellowships
Roswell Park Comprehensive Cancer Center
Hospital Affiliations
Arroyo Grande Community Hospital
Marian Regional Medical Center
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

Find your insurance
Find your insuranceClose

Accepted insurance plans:

Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID

Locations

Surgical Oncology - Dignity Health - Santa Maria, CA
1325 E Church St, Suite 202, Santa Maria, CA 93454
Call: 805-346-3456

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


6 Clinical Trials

A Phase III Study Comparing Single-Agent Olaparib or the Combination of Cediranib and Olaparib to Standard Platinum-Based Chemotherapy in Women With Recurrent Platinum-Sensitive Ovarian, Fallopian Tube, or Primary Peritoneal Cancer
A Phase III Study Comparing Single-Agent Olaparib or the Combination of Cediranib and Olaparib to Standard Platinum-Based Chemotherapy in Women With Recurrent Platinum-Sensitive Ovarian, Fallopian Tube, or Primary Peritoneal Cancer
Enrollment Status: Active_not_recruiting
Publish Date: December 01, 2025
Intervention Type: Drug, Procedure, Other
Study Drugs: Carboplatin, Cediranib Maleate, Gemcitabine, Gemcitabine Hydrochloride, Olaparib, Paclitaxel, Pegylated Liposomal Doxorubicin Hydrochloride
Study Phase: Phase 3
Randomized Phase III Clinical Trial of Adjuvant Radiation Versus Chemoradiation in Intermediate Risk, Stage I/IIA Cervical Cancer Treated With Initial Radical Hysterectomy and Pelvic Lymphadenectomy (NCT #01101451)
Randomized Phase III Clinical Trial of Adjuvant Radiation Versus Chemoradiation in Intermediate Risk, Stage I/IIA Cervical Cancer Treated With Initial Radical Hysterectomy and Pelvic Lymphadenectomy (NCT #01101451)
Enrollment Status: Completed
Publish Date: May 23, 2025
Intervention Type: Other, Radiation, Drug
Study Drug: Cisplatin
Study Phase: Phase 3
A Phase III Randomized Controlled Clinical Trial of Carboplatin and Paclitaxel (or Gemcitabine) Alone or in Combination With Bevacizumab (NSC #704865) Followed by Bevacizumab and Secondary Cytoreductive Surgery in Platinum-Sensitive, Recurrent Ovarian, Peritoneal Primary and Fallopian Tube Cancer. NCI-Supplied Agents: Bevacizumab (NSC #704865)
A Phase III Randomized Controlled Clinical Trial of Carboplatin and Paclitaxel (or Gemcitabine) Alone or in Combination With Bevacizumab (NSC #704865) Followed by Bevacizumab and Secondary Cytoreductive Surgery in Platinum-Sensitive, Recurrent Ovarian, Peritoneal Primary and Fallopian Tube Cancer. NCI-Supplied Agents: Bevacizumab (NSC #704865)
Enrollment Status: Active_not_recruiting
Publish Date: December 10, 2024
Intervention Type: Other, Drug, Biological
Study Drugs: Bevacizumab, Carboplatin, Docetaxel, Gemcitabine Hydrochloride, Paclitaxel
Study Phase: Phase 3
A Randomized Trial of Pelvic Irradiation With or Without Concurrent Weekly Cisplatin in Patients With Pelvic-Only Recurrence of Carcinoma of the Uterine Corpus
A Randomized Trial of Pelvic Irradiation With or Without Concurrent Weekly Cisplatin in Patients With Pelvic-Only Recurrence of Carcinoma of the Uterine Corpus
Enrollment Status: Unknown
Publish Date: March 29, 2023
Intervention Type: Drug, Radiation
Study Drug: Cisplatin
Study Phase: Phase 2
A Phase II Evaluation of Elesclomol Sodium and Weekly Paclitaxel in the Treatment of Recurrent or Persistent Platinum-Resistant Ovarian, Fallopian Tube or Primary Peritoneal Cancer
A Phase II Evaluation of Elesclomol Sodium and Weekly Paclitaxel in the Treatment of Recurrent or Persistent Platinum-Resistant Ovarian, Fallopian Tube or Primary Peritoneal Cancer
Enrollment Status: Completed
Publish Date: October 20, 2021
Intervention Type: Drug
Study Phase: Phase 2
A Randomized Phase II/III Study of Paclitaxel/Carboplatin/Metformin (NSC#91485) Versus Paclitaxel/Carboplatin/Placebo as Initial Therapy for Measurable Stage III or IVA, Stage IVB, or Recurrent Endometrial Cancer
A Randomized Phase II/III Study of Paclitaxel/Carboplatin/Metformin (NSC#91485) Versus Paclitaxel/Carboplatin/Placebo as Initial Therapy for Measurable Stage III or IVA, Stage IVB, or Recurrent Endometrial Cancer
Enrollment Status: Unknown
Publish Date: September 30, 2021
Intervention Type: Other, Drug
Study Drugs: Carboplatin, Metformin hydrochloride, Paclitaxel
Study Phase: Phase 2/Phase 3
View 5 Less Clinical Trials
Similar Doctors
Distinguished in Ovarian Carcinosarcoma
Dr. Brian A. Dicarlo
Oncology
Distinguished in Ovarian Carcinosarcoma
Dr. Brian A. Dicarlo
Oncology

UCLA Health Hematology Oncology

892 Aerovista Pl, Ste 240, 
San Luis Obispo, CA 
 (24.0 miles away)
805-541-8252
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

Brian Dicarlo is an Oncologist in San Luis Obispo, California. Dr. Dicarlo is rated as a Distinguished provider by MediFind in the treatment of Ovarian Carcinosarcoma. His top areas of expertise are Familial Pancreatic Cancer, Paget Disease of the Breast, Lung Cancer, and Large-Cell Immunoblastic Lymphoma. Dr. Dicarlo is currently accepting new patients.

Eric Bank
Advanced in Ovarian Carcinosarcoma
Dr. Eric Bank
Oncology
Advanced in Ovarian Carcinosarcoma
Dr. Eric Bank
Oncology

Ridley-Tree Cancer Center

540 West Pueblo Street, 
Santa Barbara, CA 
 (53.2 miles away)
805-879-0670
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Eric Bank is an Oncologist in Santa Barbara, California. Dr. Bank is rated as an Advanced provider by MediFind in the treatment of Ovarian Carcinosarcoma. His top areas of expertise are Familial Colorectal Cancer, Colorectal Cancer, Ovarian Carcinosarcoma, and Virilizing Ovarian Tumor.

Thomas J. Spillane
Advanced in Ovarian Carcinosarcoma
Dr. Thomas J. Spillane
Oncology
Advanced in Ovarian Carcinosarcoma
Dr. Thomas J. Spillane
Oncology

Cancer Center - Dignity Health - San Luis Obispo, CA

715 Tank Farm Rd, Suite C, 
San Luis Obispo, CA 
 (24.3 miles away)
805-543-5577
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

Dr. Tom Spillane believes in an integrative approach to the management of his patients. His definition of an integrative approach combines the best of the updated western medicine technology, complementary care, clinical trials and local psychosocial support services.Dr. Spillane co-founded the Hearst Cancer Resource Center in 2008, as well as the Surfing for Hope Foundation  in 2011, a program that among other services takes cancer survivors and children whose parents are battling cancer, on monthly surf sessions.Board Certification:Oncology, HematologyMedical School:University of California, DavisMedical Oncology Residency:University of California, IrvineFellowship Training:University of California, IrvineAreas of Interest:Brain tumors, Breast Cancer, GI Cancers, Head and Neck Cancer, Lung Cancer, Melanoma. Dr. Spillane is rated as a Distinguished provider by MediFind in the treatment of Ovarian Carcinosarcoma. His top areas of expertise are Paget Disease of the Breast, Familial Colorectal Cancer, Colorectal Cancer, and Lynch Syndrome.

VIEW MORE OVARIAN CARCINOSARCOMA DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Tammela's expertise for a condition
ConditionClose
    • Distinguished
    • Malignant Mixed Mullerian Tumor
      Dr. Tammela is
      Distinguished
      . Learn about Malignant Mixed Mullerian Tumor.
      See more Malignant Mixed Mullerian Tumor experts
    • Advanced
    • Adult Soft Tissue Sarcoma
      Dr. Tammela is
      Advanced
      . Learn about Adult Soft Tissue Sarcoma.
      See more Adult Soft Tissue Sarcoma experts
    • Cervical Cancer
      Dr. Tammela is
      Advanced
      . Learn about Cervical Cancer.
      See more Cervical Cancer experts
    • Desmoplastic Small Round Cell Tumor
      Dr. Tammela is
      Advanced
      . Learn about Desmoplastic Small Round Cell Tumor.
      See more Desmoplastic Small Round Cell Tumor experts
    • Endometrial Cancer
      Dr. Tammela is
      Advanced
      . Learn about Endometrial Cancer.
      See more Endometrial Cancer experts
    • Endometrial Stromal Sarcoma
      Dr. Tammela is
      Advanced
      . Learn about Endometrial Stromal Sarcoma.
      See more Endometrial Stromal Sarcoma experts
    • Lump in the Abdomen
      Dr. Tammela is
      Advanced
      . Learn about Lump in the Abdomen.
      See more Lump in the Abdomen experts
    View All 14 Advanced Conditions
    • Experienced
    • Adenomyosis
      Dr. Tammela is
      Experienced
      . Learn about Adenomyosis.
      See more Adenomyosis experts
    • Angiomyoma
      Dr. Tammela is
      Experienced
      . Learn about Angiomyoma.
      See more Angiomyoma experts
    • Cervical Dysplasia
      Dr. Tammela is
      Experienced
      . Learn about Cervical Dysplasia.
      See more Cervical Dysplasia experts
    • Eccrine Porocarcinoma
      Dr. Tammela is
      Experienced
      . Learn about Eccrine Porocarcinoma.
      See more Eccrine Porocarcinoma experts
    • Endometrial Polyps
      Dr. Tammela is
      Experienced
      . Learn about Endometrial Polyps.
      See more Endometrial Polyps experts
    • Endometriosis
      Dr. Tammela is
      Experienced
      . Learn about Endometriosis.
      See more Endometriosis experts
    View All 20 Experienced Conditions
    Want to save this doctor for later?
    Sign Up
    Is this your doctor?
    Find A Second Opinion
    Not sure about your diagnosis?
    Check Your Symptoms
     
     
     
     
    Learn about our expert tiers
    Learn More
    Are you the provider on this profile?
    Claim Profile
    For Patients
    • Our Story
    • How MediFind Works
    • Conditions A-Z
    • Doctor Directory
    • Symptoms Directory
    • Procedures Directory
    • Treatment Directory
    • Drug Directory
    • Infusion Center Finder
    • FAQ
    • Contact Us
    For Providers and Practices
    • Claim Your Profile
    • Newsroom
    Business Solutions
    • Provider
    • Network Solutions
    Additional Resources
    • Consumer Health Data Privacy Policy
    • Privacy Policy
    • Terms of Use
    • Advertising Policy
    • Content Policy
    Subscribe to our newsletter

    Sign up to stay informed about MediFind and get wellness sent your way.

    Close

      By subscribing, I agree to MediFind's Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.

      Bullet PinMediFind
      Follow us on
      This information is not intended as a substitute for informed medical advice. You should work with a licensed professional to diagnose and treat health conditions. We let the data speak for itself, MediFind does not endorse any healthcare providers.
      © 2026 All Rights Reserved

      Request an Appointment

      If you are experiencing a medical emergency, call 9-1-1.

      MediFind will contact the provider for your appointment request. You’ll receive status updates by email. Your provider or MediFind will reach out to you directly by phone or email to schedule your appointment or request additional information.

      Patient Details

      This information is for the patient who will be seen at the appointment.

        Close

        Returning patient? Use your address on file with the provider.

        Insurance Details

        Please provide information of the primary insurance holder as the practice may require this information to schedule.

        Insurance Provider *
        Insurance ProviderClose

        Appointments Details

        Let’s get more information about your appointment.

                0 / 1000
                0 / 1000
                By pressing the Submit button you are agreeing to MediFind’s Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.