Dr. Riddle graduated from the Harvard Medical School. Dr. Riddle works in Portland, OR and specializes in Diabetes and Endocrinology, Diabetes & Metabolism. Dr. Riddle is affiliated with Oregon Health Science University Hospital.


Years Experience: Not Available

Dr. Riddle's Education & Training

Medical School
Harvard Medical School


  • Overall Rating

  • Rate
    Explains conditions & treatments

  • Rate
    Takes time to answer my questions

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    Provides follow-up as needed

Dr. Riddle's Accepted Insurance

Please verify insurance information directly with your doctor's office as it may change frequently.

Insurance Plans

  • BCBS Blue Card PPO
  • CIGNA Open Access Plus
  • First Health PPO
  • Health Net OR PPO

Dr. Riddle's Office Information & Appointments


Harold Schnitzer Diabetes & Health Center & Adult Endocrinology

3181 SW Sam Jackson Pk Rd # 140
Portland, OR 97239

Get Directions

Tel: (503) 494-3273

Fax: (503) 418-2208

Practice Website: ohsu.edu

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

M 8:00 AM - 5:00 PM
T 8:00 AM - 5:00 PM
W 8:00 AM - 5:00 PM
T 8:00 AM - 5:00 PM
F 8:00 AM - 5:00 PM
S Closed
S Closed

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