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About

Empire Endocrinology is a small endocrinology practice based in Chino, California with a clear patient-focused mission to turn complex diagnoses into actionable care plans. The practice emphasizes evidence-based, personalized care using up-to-date diagnostic and treatment approaches. They operate a two-person team and appear to be expanding modestly. Contact: (909) 247-3340 or 951-444-7006. Address listed: 5450 Jefferson Ave Ste 2, Chino, CA. Note: The site and listed details reference Chino, CA rather than Riverside, so if you’re specifically seeking Riverside-based care, you may want to verify current location and services directly with the clinic.

Clinic Type

Endocrinology

Address

Ste 121 Chino, CA 91710; 802 Magnolia Ave Ste 200 Corona CA 92879; 13768 Roswell Ave Ste 121 Chino, CA 91710

Phone

951-444-7006

Email

info@eendocrinology.com

Opening Hours

MONDAY-FRIDAY 8:00 AM - 5:00 PM

Services Offered

  • Endocrinology care
  • Hormone therapy
  • Diabetes management
  • Thyroid disorder management
  • Adrenal disorder care
  • Wellness and weight management
  • Pituitary and hormonal disorders management
  • Gestational diabetes management
  • Insulin pump and glucose sensor management
  • Parathyroid and osteoporosis management

Team

  • Motaz Shakally, Board-certified endocrinologist — M.D., F.A.C.P.
  • Tahir Haytoglu, Board-certified in Endocrinology, Diabetes and Metabolism and Internal Medicine — M.D.

Insurance & Payment

  • we accept the following insurances

Not specified

not specified

Languages Spoken

FAQs

What services does Empire Endocrinology provide?

Comprehensive diagnostic evaluations and customized treatment plans for hormonal and metabolic conditions, including diabetes, thyroid disorders, adrenal issues, and other endocrine concerns.

Do you offer ongoing support and education?

Yes, ongoing support and education to help manage conditions confidently.

Who are the clinicians?

Board-certified endocrinologists and experienced healthcare professionals who work one-on-one with patients.

How can I contact the office?

Call 951-444-7006 or visit our Corona or Chino locations. Fax: (909) 247-3340.

Where are the locations?

Corona: 802 Magnolia Ave Ste 200 Corona CA 92879; Chino: 13768 Roswell Ave Ste 121 Chino, CA 91710.

What are the visiting hours?

MONDAY-FRIDAY 8:00 AM - 5:00 PM; CHINO MON-TUES-WED; CORONA WED-THURS-FRI.

Social Media

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • WebMD: 3.0 out of 5 stars (for Dr. Almoutaz Shakally, MD) (6 ratings)

Patients praise

  • Expert, patient-focused care
  • Specialized care for diabetes, thyroid, and hormonal disorders

Common complaints

  • Individual provider ratings sometimes show mixed feedback

"At Empire Endocrinology, we provide expert, patient-focused care for a wide range of hormonal and metabolic conditions."

Empire Endocrinology Official Website

Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 10, 2026.

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