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

Dr. Arash Mahajerin, MD

Individual provider Pediatric Hematology & Oncology Physician · NPI 1033315247

Dr. Arash Mahajerin, MD is a Pediatric Hematology & Oncology Physician in Orange, California. Works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2007
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 Bldg 23
Orange, CA 92868-3201
Phone: (714) 456-8000
Show map & directions

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

Additional practice locations (1)

  • 1201 W La Veta Ave, Orange, CA 92868-4203 — (714) 532-8459

Specialties & licences

Pediatric Hematology & Oncology Physician (primary) Taxonomy 2080P0207X · Licence A126238 (CA)

Record details

NPI number1033315247
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 25, 2007
Last updated in NPPESMarch 14, 2023
Certification dateMarch 14, 2023

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