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

Dr. Warren Chow, MD

Individual provider Internal Medicine Physician · NPI 1093822017

Dr. Warren Chow, MD is a Medical Oncology in Orange, California. Graduated from R Franklin University of Med & SCI/Chicago Medical School in 1986, 40 years ago. Practices with Uc Regents, a 306-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
40
Trained at
R Franklin University of Med & SCI/Chicago Medical School
Licensed in
CA
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

101 The City Dr S
Orange, CA 92868-3201
Phone: (714) 456-5153
Fax: (714) 456-5280
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 G61354 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence G61354 (CA)
Medical Oncology Physician Taxonomy 207RX0202X · Licence G61354 (CA)

Record details

NPI number1093822017
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 24, 2006
Last updated in NPPESMarch 25, 2025
Certification dateMarch 25, 2025
Mailing address200 S Manchester Ave Ste 300, Orange, CA 92868-3219

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolR FRANKLIN UNIVERSITY OF MED & SCI/CHICAGO MEDICAL SCHOOL
Graduated 1986 (40 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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