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

Dr. Khosrow Mahdavi, MD

Individual provider Hematology (Internal Medicine) Physician · NPI 1275536773

Dr. Khosrow Mahdavi, MD is an Internal Medicine in Costa Mesa, California. Qualified in 1969, 57 years ago. Practices with Uc Regents, a 306-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
57
Licensed in
CA
In the registry since
2005
Specialties on file
4
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

1640 Newport Blvd Ste 400
Costa Mesa, CA 92627-3786
Phone: (949) 999-2400
Show map & directions

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

Additional practice locations (1)

  • 520 Superior Ave, Newport Beach, CA 92663-3637 — (949) 642-8566

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence A33589 (CA)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence A33589 (CA)
Specialist Taxonomy 174400000X · Licence A33589 (CA)
Medical Oncology Physician Taxonomy 207RX0202X · Licence A33589 (CA)

Record details

NPI number1275536773
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 27, 2005
Last updated in NPPESNovember 15, 2023
Certification dateNovember 15, 2023
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 specialtyINTERNAL MEDICINE
Also practisesHEMATOLOGY, MEDICAL ONCOLOGY
Medical schoolOTHER
Graduated 1969 (57 years in practice)
Group practice Uc Regents — 306 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services