3 Best Endocrinologists in Thousand Oaks, CA

Expert-recommended Top 3 Endocrinologists in Thousand Oaks, California. All of our endocrinologists actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence. You deserve only the best!

David Bjelica, MD - Thousand Oaks, CA Endocrinologists - Doctor Portrait Image
David Bjelica, MD - Thousand Oaks, CA Endocrinologists - Exterior Image
11+ YEARS IN TBR

DAVID BJELICA, MD

ENDOCRINOLOGY, DIABETES AND METABOLISM CLINIC
555 Marin Street, Suite 120,
Thousand Oaks, CA 91360 Directions

Since 1998

Specialty:

Diabetes Mellitus Cholesterol Growth Hormone Disorders Hirsutism Pituitary Gland Osteoporosis Metabolic Bone Disease Adrenal Gland Cushing’s Syndrome Male Sexual Dysfunction and Hypogonadism Parathyroid Gland Vitamin D Deficiency Hypothyroidism Thyroid Nodules Thyroid Cancer Underactive Thyroid Gland Calcium Metabolism

" Dr. David Bjelica earned his Doctor of Medicine degree from the University of Belgrade before completing his residency at the Albert Einstein College of Medicine in New York and his fellowship at the University of California, San Diego. An active member of both the Endocrine Society and the American Association of Clinical Endocrinologists, Dr. Bjelica currently practices at the Endocrinology, Diabetes & Metabolism Clinic, where he is accepting new patients. He is fluent in Serbo-Croatian, enabling him to communicate effectively with a diverse patient base. The clinic features state-of-the-art medical technology, including integrated electronic health records. Every patient benefits from tailored care within a welcoming and comfortable setting.

2026 Highlights: Dr. David Bjelica brings 28 years of clinical expertise in endocrinology and internal medicine, with specialized proficiency in thyroid and parathyroid ultrasounds and adrenal gland needle biopsies. His academic contributions include co-authoring research on the effects of liver-specific TORC2 siRNA on hyperglycemia in rodent models of type 2 diabetes. "

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License #A91484

Contact:

(805) 449-1111

Mon-Thu: 8am - 5pm
Fri: 8am - 1pm
Sat & Sun: Closed

TBR® Inspection Report:

Na Shen, MD - Thousand Oaks, CA Endocrinologists - Doctor Portrait Image
Na Shen, MD - Thousand Oaks, CA Endocrinologists - Exterior Image
10+ YEARS IN TBR
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NA SHEN, MD

UCLA HEALTH THOUSAND OAKS PRIMARY & SPECIALTY CARE
100 Moody Court, Suite 200,
Thousand Oaks, CA 91360 Directions

Since 2009

Specialty:

Polycystic Ovarian Syndrome Steroid-Induced Diabetes Osteoporosis Metabolic Lipid Adrenal Glands Hypopituitarism Hyperthyroidism Addison Disease Hypothyroidism Acromegaly PCOS Obesity Type 1 Diabetes Type 2 Diabetes Gestational Diabetes Maturity Onset Diabetes of the Young (MODY) Post-transplant Diabetes Mellitus Prediabetes Cushing Disease

" Dr. Na Shen is a board-certified endocrinologist with over 14 years of experience. She received her M.D. from the University of Maryland School of Medicine (2009), completed residency training at Cedars-Sinai Medical Center, and completed fellowship training at the UCLA School of Medicine (2014). Currently affiliated with Harbor-UCLA Medical Center and UCLA Health Primary and Specialty Care, her research interests include quality improvement in obesity management. Dr. Shen is fluent in English and Mandarin Chinese.

2026 Highlights: Dr. Na Shen serves as the Medical Director of the medically supervised Program for Reducing Obesity (PRO) at the UCLA Thousand Oaks office, which she established. A recipient of the 2019 Greater Conejo Valley Chamber of Commerce 40 Under Forty Award, her foundational background includes a post-baccalaureate research fellowship at the National Institutes of Health in Bethesda, Maryland. "

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License #A116462

Contact:

(805) 418-3500

By Appointment

TBR® Inspection Report:

Amy Y. Chow, MD - Thousand Oaks, CA Endocrinologists - Doctor Portrait Image

AMY Y. CHOW, MD

UCLA HEALTH THOUSAND OAKS PRIMARY & SPECIALTY CARE
100 Moody Court, Suite 200,
Thousand Oaks, CA 91360 Directions

Since 2008

Specialty:

Adrenal Disorders Pituitary Disorders Endocrine Disorders Thyroid Disorders Osteoporosis Diabetes Mellitus

" Dr. Amy Y. Chow completed her Doctor of Medicine degree from Rutgers Robert Wood Johnson Medical School, where she also completed her internship and residency in internal medicine (2009) followed by a fellowship in endocrinology, diabetes, and metabolism (2014). She holds board certifications in Internal Medicine and Endocrinology, Diabetes, and Metabolism from the American Board of Internal Medicine. She practices at UCLA Health Thousand Oaks Primary & Specialty Care. She accepts various insurance plans and is currently welcoming new patients.

2026 Highlights: Dr. Amy Y. Chow is committed to delivering exceptional patient care and making a meaningful difference in the lives of those she treats. Her areas of clinical focus include obesity and weight management, and she provides care in English. "

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License #A104995

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