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Dr. Gregory Horner, MD

Dr. Gregory Horner, MD

Age 54 Orthopedic Surgery M
(66) 66 reviews
Accepting New Patients


Dr. Gregory Horner, MD is a orthopedic surgery specialist in Pleasanton, CA. Dr. Horner completed a residency at Ronald Reagan UCLA Medical Center. He currently practices at Tri-Valley Orthopedic Specialists, Inc. and is affiliated with San Ramon Regional Medical Center. He accepts multiple insurance plans. Dr. Horner is board certified in Hand Surgery.

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  1. Tri-Valley Orthopedic Specialists, Inc.

    1. 1
      Tri-Valley Orthopedic Specialists, Inc.
      4626 Willow Rd Ste 200, Pleasanton, CA 94588 Existing Patients: (925) 463-0470
    2. 2
      Tri-Valley Orthopedic Specialists, Inc.
      5601 Norris Canyon Rd Ste 130, San Ramon, CA 94583 Existing Patients: (925) 275-1133
    3. 3
      Tri-Valley Orthopedic Specialists, Inc.
      2180 W Grant Line Rd # 100, Tracy, CA 95377 Existing Patients: (209) 833-6821




  • New England Combined Hand Surgery Program, Fellowship Hospital — 1999
  • Ronald Reagan UCLA Medical Center, Residency Hospital — 1998
  • Ronald Reagan UCLA Medical Center, Internship Hospital — 1998
  • Johns Hopkins University School Of Medicine, Medical School — 1993
  • Northwestern Center Feinberg School of Medicine, Undergraduate School — 1989

Insurance Accepted

  • Aetna
  • Anthem
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • First Health (Coventry Health Care)
  • Health Net of California
  • Humana
  • MultiPlan
  • Principal Financial Group
  • UnitedHealthCare
  • WellPoint

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My visit was with his DO. I didn’t see him at all. Although surprised that he didn’t step into the room. I was pleased with my visit with her once again. She was very knowledgeable of my injury and I appreciated her taking the time to figure out some treatments for me.
Arnitra — Dec 17, 2020
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Dr. Gregory Horner, MD
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Hospital Affiliations

  • San Ramon Regional Medical Center
  • Stanford Health Care - ValleyCare Pleasonton
  • Sutter Tracy Community Hospital
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