MISSION VIEJO RADIATION ONCOLOGY CENTER
NPI 1932135472
Radiology - Radiation Oncology in Mission Viejo, CA

Q: What is Mission Viejo Radiation Oncology Corp.'s specialty?

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

Active since June 25, 2006

27799 MEDICAL CENTER RD, STE 120, MISSION VIEJO, CA 92691(949) 573-9560 Get Directions Write a Review

NPPES record last updated: March 11, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 11, 2020, Feb 22, 2016, Feb 19, 2016 and 1 more (4 updates tracked since 2016).

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About Mission Viejo Radiation Oncology Center NPPES

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

MISSION VIEJO RADIATION ONCOLOGY CENTER (NPI 1932135472) is a healthcare organization registered as a radiation oncology in Mission Viejo, California and active in the NPI registry since June 2006. The organization maintains a secondary practice location in Mission Viejo and lists Carolyn Young, Owner, as its authorized official.

NPPES Registry Identity

NPI1932135472

Entity TypeOrganization

Primary Taxonomy2085R0001X

Legal Business NameMISSION VIEJO RADIATION ONCOLOGY CORP.

Location Address27799 MEDICAL CENTER RD, STE 120Mission Viejo, CA 92691-6426

Mailing AddressPo Box 515445Los Angeles, CA 90051-6745 · (949) 573-9560

Phone(949) 573-9560

Organization SubpartNo

Authorized OfficialCarolyn YoungOwner · (949) 573-9560

Enumeration DateJune 25, 2006

Last NPPES UpdateMarch 11, 20204 updates tracked since enumeration

NPPES CertifiedMarch 11, 2020

✔ NPI 1932135472 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

License✔ Licensed in CA · G49709

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.

27799 MEDICAL CENTER RD, Mission Viejo, CA 92691

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Other Names 1

Doing Business AsMission Viejo Radiation Oncology Center

Secondary Practice Location 1

Location 127800 Medical Center Rd, Suite 160Mission Viejo, CA 92691-6410 · Phone (949) 364-9120 · Fax (949) 364-8465

Other Identifiers 1

MedicaidGR0103710CA

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

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mission Viejo Radiation Oncology Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Mission Viejo Radiation Oncology Center, which bills Medicare for the services this clinician delivers.

Clinician (1)

Gene-Fu Liu, M.D.

Radiation Oncology

NPI 1639306426

5758 S. MARYLAND AVE. MC 9006
Chicago, IL 60637

(773) 702-6870

✔ PECOS✔ Accepts Medicare1,732 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Mission Viejo Radiation Oncology Corp.'s NPI number?

The NPI number for Mission Viejo Radiation Oncology Corp. is 1932135472. It was assigned to this organization in the NPPES registry on June 25, 2006. The provider is doing business as Mission Viejo Radiation Oncology Center.

Where is Mission Viejo Radiation Oncology Corp. located?

Mission Viejo Radiation Oncology Corp. is located at 27799 Medical Center Rd Ste 120, Mission Viejo, CA 92691. The listed phone number is (949) 573-9560.

What is Mission Viejo Radiation Oncology Corp.'s specialty?

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

Is Mission Viejo Radiation Oncology Corp. enrolled in Medicare?

Yes. Mission Viejo Radiation Oncology Corp. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mission Viejo Radiation Oncology Corp.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Radiation Oncology) reassigns their Medicare billing to Mission Viejo Radiation Oncology Corp.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Mission Viejo Radiation Oncology Corp. was last updated on March 11, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.