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Physician Directory

Find a Doctor

Dr. Gregory L. Clark, MD


  • (503) 228-4414

Dr. Clark's Overview

Dr. Gregory L. Clark graduated from the University of Maryland School of Medicine in 1983. He works in Portland, OR and specializes in Neurology and Sleep Medicine. Dr. Clark is affiliated with Providence Portland Medical Center and Providence Saint Vincent Medical Center.

Dr. Clark's Experience

Years in Practice: 32

Conditions Treated by Dr. Clark

  • Not Available

Procedures Performed by Dr. Clark

  • Not Available

Dr. Clark's Specialties

Neurology, Sleep Medicine

Dr. Clark's Education & Training

Medical School: University of Maryland School of Medicine; Graduated 1983

Dr. Clark's Rating

Rate This Doctor

Overall Rating


  • Explains conditions & treatments
  • Takes time to answer my questions
  • Provides follow-up as needed
  • View All Ratings

Dr. Clark's Accepted Insurance

  • Aetna Choice POS II
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • First Choice
  • First Health PPO
  • Great West PPO
  • Health Net OR PPO
  • Lifewise Health Plan of Oregon
  • Multiplan PPO
  • View More

Dr. Clark's Office Information & Appointments

Office Locations

Pacific Sleep Program

11790 SW Barnes Rd Ste 330
Portland, OR 97225
(503) 228-4414


Office Hours and Information

Fax: (503) 228-7293

Practice Website: Not Available

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

Monday 9:00 AM - 4:30 PM
Tuesday 9:00 AM - 4:30 PM
Wednesday 9:00 AM - 4:30 PM
Thursday 9:00 AM - 4:30 PM
Friday 9:00 AM - 12:00 PM
Saturday Closed
Sunday Closed

Other Physicians in Dr. Clark's Practice

Office Locations

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