Holly Nguyen, DDS
NPI 1053421594 · General Practice Dentistry · Rancho Santa Margarita, CA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Holly Nguyen, DDS is a General Practice Dentistry provider in Rancho Santa Margarita, CA (NPI 1053421594).
Provider details
- NPI number
- 1053421594
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Female
- Sole proprietor
- No
- License
- 48524 (CA)
Specialties & taxonomies
Dental 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
- 2006-08-30
- Last updated
- 2007-07-08
Frequently asked questions
- What is Holly Nguyen's NPI number?
- Holly Nguyen's National Provider Identifier (NPI) is 1053421594, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Nguyen's specialty?
- Holly Nguyen is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Holly Nguyen located?
- Holly Nguyen's practice location on file with NPPES is 30592 Santa Margarita Pkwy, Rancho Santa Margarita, CA 92688-5802.
- What is Holly Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Holly Nguyen is (949) 766-5740.
- Does Holly Nguyen accept Medicare?
- Holly Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Holly Nguyen's NPI active?
- Yes — Holly Nguyen's NPI (1053421594) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.