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

Katharine M O'Brien, DO

Individual provider Family Medicine Physician · NPI 1083720718

Katharine M O'Brien, DO is a Family Practice in Menifee, California. Qualified in 1995, 31 years ago. Practices with Kolli Medical Corporation, a 5-clinician group and accepts Medicare assignment. Licensed in California and Texas.

Years since qualifying
31
Licensed in
CA, TX
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

30420 Haun Rd
Menifee, CA 92584-6810
Phone: (951) 676-4193
Fax: (951) 719-1469
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 20A7203 (CA)
Family Medicine Physician Taxonomy 207Q00000X · Licence K6898 (TX)

Record details

NPI number1083720718
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 23, 2006
Last updated in NPPESApril 18, 2017
Mailing address28780 Single Oak Dr, Ste 160, Temecula, CA 92590-5528

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Group practice Kolli Medical Corporation — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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