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BEST RATED GLENDALE, CA ENDOCRINOLOGISTS

3 Best Endocrinologists in Glendale, CA

Expert-recommended Top 3 Endocrinologists in Glendale, 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!

Oliver L Ong, MD - Glendale, CA Endocrinologists - Doctor Portrait Image
11+ YEARS IN TBR

OLIVER L ONG, MD

(4.9 Score)
ADVENTIST HEALTH PHYSICIANS NETWORK
544 North Glendale Avenue, Suite B,
Glendale, CA 91206 Directions

Since 1996

Specialty:

✓Adrenal Gland Diseases ✓Calcium Metabolism Disorders ✓Diabetes Mellitus ✓Female Infertility ✓Graves ✓Hashimoto's Disease ✓Hypopituitarism ✓Lipid Disorders ✓Hyperthyroidism ✓Osteoporosis ✓Vitamin D Deficiency ✓Polycystic Ovarian Syndrome ✓Obesity ✓Hypothyroidism ✓Hyperparathyroidism ✓Goiter ✓Thyroid Disorders

" Dr. Oliver L. Ong obtained his medical degree from the George Washington University Hospital. He has been practicing for over 30 years in the endocrinology field. Dr. Oliver L. Ong earned his residency, internship, and fellowship from the Baylor College of Medicine. Specializing in endocrinology, Dr. Oliver L. Ong performs diabetes counseling and endocrine surgical procedures. He practices at Adventist Health Physicians Network. Dr. Oliver L. Ong treats patients from adults to older adults. Dr. Oliver L. Ong is fluent in Chinese, Mandarin, and Taiwanese. He warmly welcomes new patients to his practice.

2026 Highlights: Dr. Oliver L. Ong is committed to providing personalized, patient-centered care tailored to each individual's medical needs. "

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License #A76526

Contact:

(818) 265-2242

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

TBR® Inspection Report:

Zarmen Israelian-Konaraki, MD - Glendale, CA Endocrinologists - Doctor Portrait Image
11+ YEARS IN TBR

ZARMEN ISRAELIAN-KONARAKI, MD

(4.9 Score)
ADVENTIST HEALTH PHYSICIANS NETWORK
544 North Glendale Avenue, Suite B,
Glendale, CA 91206 Directions

Since 1988

Specialty:

✓Adrenal Gland Diseases ✓Calcium Metabolism Disorders ✓Diabetes Mellitus ✓Hypopituitarism ✓Lipid Disorders ✓Hyperthyroidism ✓Osteoporosis ✓Vitamin D Deficiency ✓Female Infertility ✓Graves ✓Hashimoto's Disease

" Dr. Zarmen Israelian-Konaraki earned his medical degree from Tehran University of Medical Sciences, and his internship and residency from the University Medical Center of Southern Nevada. Dr. Zarmen obtained his fellowship from the Carl Hayden VA Medical Center. He has over 38 years of experience in the medical field. Dr. Zarmen Israelian-Konaraki is fluent in Armenian, Persian, and Spanish. Dr. Zarmen Israelian-Konaraki specializes in endocrine, thyroid, and hormonal disorders and currently practices at Adventist Health Physicians Network Endocrinology. Dr. Zarmen is accepting new patients, and flexible appointments are also available.

2026 Highlights: Dr. Zarmen Israelian-Konaraki provides comprehensive care focused on accurately identifying underlying conditions and developing individualized treatment plans based on each patient's needs. He is committed to providing accessible, patient-centered endocrine care. "

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License #A56455

Contact:

(818) 265-2242 (818) 242-8916

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

TBR® Inspection Report:

Leon Kujmanian, MD - Glendale, CA Endocrinologists - Doctor Portrait Image
7+ YEARS IN TBR

LEON KUJMANIAN, MD

(4.8 Score)
ADVENTIST HEALTH PHYSICIANS NETWORK
544 North Glendale Avenue, Suite B,
Glendale, CA 91206 Directions

Since 1993

Specialty:

✓Diabetes Type 2 ✓Hypothyroidism ✓Endocrine Gland Cancer ✓Diabetic Polyneuropathy ✓Neuroendocrine Tumors ✓Thyroiditis ✓Autoimmune Thyroid Diseases ✓Hashimoto's Disease ✓Autoimmune Thyroiditis ✓Hypercalcemia ✓Hyperlipidemia ✓Calcium Metabolism Disorders ✓Diabetes With Renal Manifestations ✓Lipid Disorders ✓Hypoparathyroidism ✓Hyperprolactinemia ✓Proteinuria ✓Vitamin Deficiency ✓Thyroid Hormone Replacement ✓Thyroid Eye Disease ✓Grave's Disease ✓Vitamin D Deficiency ✓Thyroid Cancer ✓Adrenal Gland Diseases ✓Adrenal Insufficiency

" Dr. Leon Kujmanian holds board certification in endocrinology, diabetes, and metabolism from the American Board of Internal Medicine. He obtained his medical education from Shiraz University and his residency in endocrinology at the St Barnabas Medical Center. Dr. Leon Kujmanian earned his fellowship at the Scripps Memorial Hospital. He has 32 years of extensive experience in the field of endocrinology. Dr. Leon Kujmanian specializes in endocrinology and currently practices at the Adventist Health Physicians Network Endocrinology. He warmly welcomes new patients to his practice and accepts various insurance plans.

2026 Highlights: Dr. Leon Kujmanian has been serving in the field of medicine for over 23 years. His extensive experience enables him to develop treatment approaches tailored to each patient's specific needs and health goals. "

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License #A64159

Contact:

(818) 265-2242

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

TBR® Inspection Report:

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OLIVER L ONG, MD REVIEWS

Dr. Ong is the Best!!! I can honestly say he really cares for his patients. I’ve been his patients for couple years now and he’s helped me through it all step by step. Dr. Ong knows exactly what he’s doing and very supportive. I thank him for all he does for me.

Dr. Ong is great. Really takes the time to diagnose and explain everything. Very smart doctor. Has helped me for years.

I been going to many doctors but Dr Oliver is the best.

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ZARMEN ISRAELIAN-KONARAKI, MD REVIEWS

Dr. Israelian has been so kind and helpful to me with monitoring my thyroid nodules. He is always willing to explain things to me and take a cautious approach. I have seen him for over a year, and I would recommend him. He also helped with my PCOS diagnosis and discovered my high androgen levels which are now being treated.

Dr. Israelian sat down with me, reviewed all my bloodwork and symptoms, and truly spent the time to help me. Endocrinology is a complex specialty and I really felt well taken care of by a knowledgeable professional.

I found Dr. Israelian to be compassionate, kind, and informative. I went to him with concerns about my thyroid. My previous Doctor essentially told me that I should just lose some weight and my issues would resolve themselves. My labs seemed relatively normal, but Dr. Israelian listened to my concerns and didn't fat shame me like my previous Dr. He listened and ordered tests and surprise surprise, there was some abnormal stuff going on that we are now monitoring. I highly recommend him.

LEON KUJMANIAN, MD REVIEWS

The best of the bests. Extraordinary, passionate, knowledgeable, has an excellent personality, good listener. Dr Kujmanian is one of the few doctors who reviewed your medical history along with labs, when he entered room. He discusses the detail of your condition, makes all necessary decisions. When you exit the office, the reception has all your medical information, they handed to you. The doctor exceeds my expectations, I wish we had many doctors like him.

Dr. Leon Kuimanian and crew are excellnet, very professional and skilled medical staff. The whole process from start to the end was extreemly efficient, professinal and nothing but good about the offfice managet, staff and obviously, Dr Kujmanina himself well exceeed my expectation. I have nothing but, good to say about my expericen and comfortable feeling to talk about my concerns and the way, he walked me thru all the issues and option I have. I strongly recommne Dr Leon Kujmanina and his office staff is mirro of him.

The Best of the Best! Highly recommend Dr Kujmanian he really cares for your condition! Thank you Dr. Kujmanian and all the employees working here.

TBR® Inspection Score Report

OLIVER L ONG, MD Total Inspection Points: 118/120
Complete Info: 9
Contact Info: 9
Acknowledgments: 10
Insurance : 10
License: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Location Proximity: 10
Online Appointment: 10
Reviews Accuracy of : 10
Reviews Study: 10

TBR® Inspection Score Report

ZARMEN ISRAELIAN-KONARAKI, MD Total Inspection Points: 117/120
Complete Info: 9
Contact Info: 9
Responsiveness: 9
Acknowledgments: 10
Insurance : 10
License: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Location Proximity: 10
Online Appointment: 10
Reviews Study: 10

TBR® Inspection Score Report

LEON KUJMANIAN, MD Total Inspection Points: 115/120
Business Hours: 9
Complete Info: 9
Contact Info: 9
Responsiveness: 9
Reviews Accuracy of : 9
Acknowledgments: 10
Insurance : 10
License: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Location Proximity: 10