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

Brian Oliver Warnecke, DO

Individual provider Internal Medicine Physician · NPI 1356804421

Brian Oliver Warnecke, DO is a Hematology/Oncology in Orange, California. Graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 2019, 7 years ago. Practices with Uc Regents, a 306-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
7
Trained at
Kansas City University of Med & Biosciences, College of Osteo Med
Licensed in
CA
In the registry since
2019
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.

See every abbreviation used in this directory →

Practice location Address checks out

200 S Manchester Ave Ste 400
Orange, CA 92868-3220
Phone: (714) 456-7772
Show map & directions

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

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 20A20086 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 20A20086 (CA)

Record details

NPI number1356804421
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 7, 2019
Last updated in NPPESSeptember 4, 2025
Certification dateSeptember 4, 2025
Mailing address101 The City Drive South, Building 56, Zot 4061, Orange, CA 92868

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolKANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED
Graduated 2019 (7 years in practice)
Group practice Uc Regents — 306 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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