Orange County Radiation Oncology Medical Group
NPI 1992712699 · Radiation Oncology Physician · Santa Ana, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Orange County Radiation Oncology Medical Group is a Radiation Oncology Physician organization in Santa Ana, CA (NPI 1992712699).
Provider details
- NPI number
- 1992712699
- Entity type
- Organization
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Chu-Pei Feng, Owner(714) 835-8520
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Specialist174400000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-02
- Last updated
- 2021-04-06
- Certified
- 2021-04-06
Frequently asked questions
- What is Orange County Radiation Oncology Medical Group's NPI number?
- Orange County Radiation Oncology Medical Group's National Provider Identifier (NPI) is 1992712699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Orange County Radiation Oncology Medical Group?
- Orange County Radiation Oncology Medical Group is classified in the NPPES registry as Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Orange County Radiation Oncology Medical Group located?
- Orange County Radiation Oncology Medical Group's practice location on file with NPPES is 1100 N Tustin Ave Ste a, Santa Ana, CA 92705-3509.
- What is Orange County Radiation Oncology Medical Group's phone number?
- The practice phone number listed in the NPPES registry for Orange County Radiation Oncology Medical Group is (714) 835-8520.
- Does Orange County Radiation Oncology Medical Group accept Medicare?
- Orange County Radiation Oncology Medical Group is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Orange County Radiation Oncology Medical Group?
- The authorized official listed on Orange County Radiation Oncology Medical Group's NPPES record is Chu-Pei Feng, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Orange County Radiation Oncology Medical Group's NPI active?
- Yes — Orange County Radiation Oncology Medical Group's NPI (1992712699) is active in the NPPES registry as of the last update on 2021-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.