Tan Nghiem, DDS
NPI 1164679379 · Dentist · Santa Ana, CA
Tan Nghiem, DDS is a Dentist provider in Santa Ana, CA (NPI 1164679379).
Provider details
- NPI number
- 1164679379
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- 57467 (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
17 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 452 | 351 |
| Ibuprofen | 277 | 233 |
| Chlorhexidine Gluconate | 66 | 62 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 42 | 39 |
| Clindamycin Hcl | 36 | 30 |
| Ibuprofenbrand: Ibu | 31 | 27 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-20
- Last updated
- 2008-08-20
Frequently asked questions
- What is Tan Nghiem's NPI number?
- Tan Nghiem's National Provider Identifier (NPI) is 1164679379, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tan Nghiem's specialty?
- Tan Nghiem is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Tan Nghiem located?
- Tan Nghiem's practice location on file with NPPES is 5510 Rhonda Ave, Santa Ana, CA 92703-2456.
- What is Tan Nghiem's phone number?
- The practice phone number listed in the NPPES registry for Tan Nghiem is (714) 800-9483.
- Is Tan Nghiem's NPI active?
- Yes — Tan Nghiem's NPI (1164679379) is active in the NPPES registry as of the last update on 2008-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.