Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Robert Morris O'Hollaren, MD

Individual provider Adult Reconstructive Orthopaedic Surgery Physician · NPI 1801852710

Dr. Robert Morris O'Hollaren, MD is an Orthopedic Surgery in Ventura, California. Graduated from University of Southern California Keck School of Medicine in 1977, 49 years ago. Practices with Ventura Orthopedics Medical Group Inc, a 78-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
49
Trained at
University of Southern California Keck School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1191 Church St
Ventura, CA 93001-2148
Phone: (805) 320-6761
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Reconstructive Orthopaedic Surgery Physician (primary) Taxonomy 207XS0114X · Licence G39131 (CA)

Record details

NPI number1801852710
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 21, 2006
Last updated in NPPESJuly 13, 2026
Certification dateJuly 13, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolUNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Graduated 1977 (49 years in practice)
Group practice Ventura Orthopedics Medical Group Inc — 78 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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