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Ernest Ngo, M.D.
NPI 1366454415 · Radiation Oncology Physician · Santa Ana, CA
Ernest Ngo, M.D. is a Radiation Oncology Physician provider in Santa Ana, CA (NPI 1366454415).
Provider details
- NPI number
- 1366454415
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G25051 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
1100-A N. Tustin Ave
Santa Ana, CA 92705-3509
Phone: (714) 835-8520
Fax: (714) 835-3610
Street-level locationGet directions
Mailing address
2865 E Coast Hwy Ste 210
Corona Del Mar, CA 92625-2217
Registry dates
- Enumerated
- 2006-08-13
- Last updated
- 2023-03-07
- Certified
- 2020-03-20
Frequently asked questions
- What is Ernest Ngo's NPI number?
- Ernest Ngo's National Provider Identifier (NPI) is 1366454415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ernest Ngo's specialty?
- Ernest Ngo is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Ernest Ngo located?
- Ernest Ngo's practice location on file with NPPES is 1100-A N. Tustin Ave, Santa Ana, CA 92705-3509.
- What is Ernest Ngo's phone number?
- The practice phone number listed in the NPPES registry for Ernest Ngo is (714) 835-8520.
- Is Ernest Ngo's NPI active?
- Yes — Ernest Ngo's NPI (1366454415) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.