Accepting New Patients
Susan C. Ahern, DO
- Endocrinology
Average rating:
5.0
Thousand Oaks Primary & Specialty Care
|
100 Moody Court, Suite 200, Thousand Oaks, CA 91360
US
About
Dr. Susan Ahern was born and raised in Orange County, California. She now lives with her husband and children in Ventura County. She completed her Internal Medicine Residency, Internal Medicine Chief Residency, and Endocrinology and Metabolism Fellowship at the University of California, Irvine. She is also board certified in Obesity Medicine by the American Board of Obesity Medicine. Her clinical interests include obesity medicine and is part of an insurance based weight loss program at UCLA called the Program for Reducing Obesity (PRO. Other clinical interests include diabetes mellitus, thyroid conditions including thyroid nodules and thyroid cancer, parathyroid conditions, pituitary conditions, and general hormonal disorders. In her spare, time she enjoys spending time with her husband and two children. Dr. Ahern strives to provide high quality, comprehensive, and evidence based care for her patients.
Languages
Education
Medical Board Certifications
Obesity Medicine, American Board of Obesity Medicine, 2020
Endocrinology, Diabetes and Metabolism, American Board of Internal Medicine, 2017
Internal Medicine, American Board of Internal Medicine, 2014
Fellowship
Endocrinology Diabetes & Metabolism, UC Irvine School of Medicine, 2017
Residencies
Chief Resident, UC Irvine School of Medicine, 2015
Internal Medicine, UC Irvine School of Medicine, 2014
Degree
DO, Western University of Health Sciences, 2011
Recognitions
-
LGBTQ+ champion
- Super Doctors® Southern California Rising Stars, 2024
- Super Doctors® Southern California Rising Stars, 2021
- Super Doctors® Southern California Rising Stars, 2020
- See More
Locations
Hospital Affiliations
Ronald Reagan UCLA Medical Center
Medical Services
Areas of Focus
Research
Publications
RESEARCH PAPERS
PEER REVIEWED (PUBLISHED)
- Purdy AC1, Idriss A, Ahern S, Lin E, Elfenbein DM. Dr. Google: The Readability and Accuracy of Patient Education Websites for Graves’ Disease Treatment. Surgery. 2017 Nov;162(5):1148-1154. doi: 10.1016/j.surg.2017.07.01 Epub 2017 Aug 30.
- Riestenberg C, Ahern S, Shamonki M. Follicle-stimulating hormone receptor autoantibody associated primary ovarian insufficiency successfully treated with corticosteroids: a case report. F S Rep. 2020 Sep 14;1(3):206-208. doi: 10.1016/j.xfre.2020.09.00 PMID: 34223245; PMCID: PMC8244256.
- Wei J, Lei L, Shieh A, Gupta D, Ahern S, Shen N. Program for Reducing Obesity (PRO): An institutional review of an insurance-based weight loss program utilizing shared medical appointments. Obes Sci Pract. 2021 Sep 25;8(3):272-278. doi: 10.1002/osp4.564. PMID: 35664242; PMCID: PMC9159562.
NON-PEER-REVIEWED (PUBLISHED)
- Ahern S., Synopsis Osteoporosis Lecture by of Stewart Silverman California Chapter AACE meeting on Osteoporosis Drug Holidays published in the California Chapter of the AACE President’s Newsletter in November 2015.
- Ahern S., and Mitchell G. Heraclitus Redux: Clinical Consequences of Licorice Ingestion, Once an Ancient Survival Strategy, Now Linked to Overindulgence in Modern Society. Proceedings of UCLA Health. Volume 22 (2018)
- Rocco, V. And Ahern S., An Interesting Case of Hyperkalemia in a Patient with Normal Renal Function. Proceedings of UCLA Health Volume 22 (2018)
- Ahern S., Benjamin M, Ilarde A. Plasmacytoma Masquerading as a goiter. A Case Report. Proceedings of UCLA Health Volume 24 (2020)
CASE REPORTS (PEER REVIEWED)
- Cox S.*, Kujak J, Princenthal R, and Bjelica D. "Skeletal and Extraskeletal Manifestations of Mixed Alpha and Beta Thalassemia”. Radiology Case Reports (2012) Volume 7 (3) PMID 27326288 (*maiden name)
- Ahern S., Daniels M, and Bhangoo M. LHX3 Deficiency in the United States with Severe Developmental Delay in a Child of Syrian Refugee Parents. Endocrinology Diabetes & Metabolism Case Reports Journal November 2018 DOI: 10.1530/EDM-18-0079
CHAPTERS (PUBLISHED)
- Ahern S., Nguyen H, Lyou Y, Singh S and Wang PH. Part 3: Case 56 Type B Insulin Resistance Syndrome. Atypical Diabetes: Pathophysiology, Clinical Presentations and Treatment Options. 2018 Boris Draznin MD, PHD Editor, ADA publication
CHAPTERS (IN PRESS)
- Shira Grock, M.D., Reema Patel, M.D., Susan Ahern D.O. Hormone Therapy for Transgender and Gender- Diverse Patients
ABSTRACTS
- The Program for Reducing Obesity (PRO): Two-Year Weight Loss Outcomes" submitted to Obesity Week 2022 in November 2022
POSTER
- Institutional Review of a Weight Loss Program Utilizing Shared Medical Appointments to Treat Obesity. Obesity Week 2020- Poster 253. Jeffrey Wei, MD, Albert Shieh, MD, Deepashree Gupta, MD, Susan Ahern, DO, Na Shen, MD
Insurance
- Aetna
- Anthem Blue Cross
- Blue Shield of California
- Centivo
- Cigna
- First Health
- Health Net of California
- Interplan (part of HealthSmart)
- Medicare Advantage
- MultiPlan
- UFCM Health System
- Prime Health Services
- Private Healthcare Systems (PHCS)
- TRICARE
- UnitedHealthcare
The list of health care plans above may not be comprehensive and could change.
Please contact your benefits coordinator or health insurance company directly to verify coverage.
Visit our health insurance information page for more details.
Recognitions
- Super Doctors® Southern California Rising Stars, 2024
- Super Doctors® Southern California Rising Stars, 2021
- Super Doctors® Southern California Rising Stars, 2020
- Super Doctors® Southern California Rising Stars, 2019
Links
Reviews
Overall Rating:
5.0
267 total ratings | 125 reviews
5.0
September 30, 2025
Dr. Ahern is most professional, very easy to speak to, always answers all my questions. She is an outstanding g doctor.
5.0
September 25, 2025
Dr Ahern is wonderful. She is very polite and professional. She listens to your concerns and all questions. I feel that she really cares about my well-being and to help me get my health under control She discusses with me different avenues and we come up with a plan that will work for me. I never feel rushed or disheartened after my exam with Dr Ahern. I appreciate Dr Ahern!
5.0
September 25, 2025
Dr Ahern is wonderful! She is always warm, compassionate, kind and listens and answers all your questions and concerns.
5.0
September 24, 2025
Dr. AHERN is wonderful! She cares deeply about helping me with my gender health and over all health. She is kind, professional, detailed and listens to me carefully. I am so grateful for her excellent care.
5.0
September 23, 2025
Took plenty of time with me. Had a good conversation regarding my concerns. Gave me instructions to help with my concerns