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MEMORIAL RADIATION ONCOLOGY MEDICAL
NPI 1639509706
Radiology - Radiation Oncology in Fountain Valley, CA

Active since November 26, 2013
18111 BROOKHURST ST, SUITE LL0300, FOUNTAIN VALLEY, CA 92708(714) 962-7100(714) 963-7600 Get Directions Write a Review

NPPES record last updated: October 15, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 22, 2023, Feb 14, 2023, Mar 9, 2020 (3 updates tracked since 2020).

About Memorial Radiation Oncology Medical NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MEMORIAL RADIATION ONCOLOGY MEDICAL (NPI 1639509706) is a healthcare organization registered as a radiation oncology in Fountain Valley, California and active in the NPI registry since November 2013. The organization lists Asif R. Harsolia, Md/authorized Official, as its authorized official.

NPPES Registry Identity

NPI1639509706
Entity TypeOrganization
Primary Taxonomy2085R0001X
Legal Business NameMEMORIAL RADIATION ONCOLOGY MEDICAL
Location Address18111 BROOKHURST ST, SUITE LL0300Fountain Valley, CA 92708-6728
Mailing AddressPo Box 844945Los Angeles, CA 90084-4945 · (562) 492-6695 · Fax (562) 988-0389
Phone(714) 962-7100
Fax(714) 963-7600
Organization SubpartNo
Authorized OfficialAsif R. HarsoliaMd/authorized Official · (562) 492-6695
Enumeration DateNovember 26, 2013
Last NPPES UpdateOctober 15, 20253 updates tracked since enumeration
NPPES CertifiedOctober 15, 2025
✔ NPI 1639509706 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
18111 BROOKHURST ST, Fountain Valley, CA 92708
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ORANGE COAST RADIATION ONCOLOGY MEDICAL GROUP
Radiology (Radiation Oncology)
18111 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (562) 492-6695
NEURORESCUE, A PROFESSIONAL MEDICAL
Neurological Surgery
18111 BROOKHURST ST, 5800
FOUNTAIN VALLEY, CA 92708
Orange County (714) 443-0011
DR. TIMOTHY FRANKLIN HORTTOR NP
Nurse Practitioner (Acute Care)
18111 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (714) 378-7000
JULIE JOOHYUN OH MD
Internal Medicine
18111 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (714) 717-4415
TIFFANY CRYSTLE CARAGAN NURSE PRACTITIONER
Nurse Practitioner (Family)
18111 BROOKHURST ST, SUITE 6100
FOUNTAIN VALLEY, CA 92708
Orange County (714) 698-0300
ANDREA S NACCA PA
Physician Assistant
18111 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (559) 624-6095
GABRIELA NAKANO
Nurse Practitioner (Acute Care)
18111 BROOKHURST ST
FOUNTAIN VALLEY, CA 92708
Orange County (714) 378-7000
LEPORT SURGICAL MEDICAL CORPORATION
Specialist
18111 BROOKHURST ST, SUITE 5600
FOUNTAIN VALLEY, CA 92708
Orange County (714) 861-4666

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Memorial Radiation Oncology Medical's NPI number?

The NPI number for Memorial Radiation Oncology Medical is 1639509706. It was assigned to this organization in the NPPES registry on November 26, 2013.

Where is Memorial Radiation Oncology Medical located?

Memorial Radiation Oncology Medical is located at 18111 Brookhurst St Suite Ll0300, Fountain Valley, CA 92708. The listed phone number is (714) 962-7100.

What is Memorial Radiation Oncology Medical's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

When was this NPI record last updated?

The NPPES record for Memorial Radiation Oncology Medical was last updated on October 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.