~ DouglasZlock.MD.com ~

An endocrinologist in Walnut Creek, Dr. Douglas Zlock diagnoses, treats, and manages endocrine disorders, or those affecting the body's secretion of hormones such as thyroid problems or diabetes.

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Dr. Zlock has one office in California where he specializes in Endocrinology. Learn more.

Dr. Zlock works with eight doctors including Dr. Bonnie Kimmel and Dr. Helen Stacey.

Hospital Affiliations

  • John Muir Medical Center

Languages Spoken  

  • English

John Muir Medical Group  


106 La Casa Via, Suite 100, Walnut Creek, California 94598-3084

Office Hours

  Open Lunch Close
Mon 8:00 am 5:00 pm
Tue 8:00 am 5:00 pm
Wed 8:00 am 5:00 pm
Thu 8:00 am 5:00 pm
Fri 8:00 am 5:00 pm

Office Details

Doctor Specialty Endocrinology
Practice SpecialtyMulti-specialty
Group PracticeJohn Muir Medical Group
Health SystemJohn Muir Health System
Practice OwnershipJohn Muir Medical Center
Hospital Affiliation
  • John Muir Medical Center
Languages Spoken Arabic, English, French, German, Italian, Korean, Mandarin, Polish, Portuguese, Russian, Spanish, Tagalog, Vietnamese

Insurances Accepted  

  • Aetna
  • BlueCross BlueShield
  • Cigna
  • Health Net
  • UnitedHealthcare


Douglas Zlock, MD