James Ahn, D.D.S.
NPI 1164462263 · General Practice Dentistry · Azusa, CA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Ahn, D.D.S. is a General Practice Dentistry provider in Azusa, CA (NPI 1164462263).
Provider details
- NPI number
- 1164462263
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- License
- 46234 (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
20 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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ibuprofen | 51 | 39 |
| Amoxicillin | 34 | 33 |
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 no Part D record, 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
- 2006-06-07
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Ahn's NPI number?
- James Ahn's National Provider Identifier (NPI) is 1164462263, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Ahn's specialty?
- James Ahn is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is James Ahn located?
- James Ahn's practice location on file with NPPES is 315 E Gladstone St, Azusa, CA 91702-4928.
- What is James Ahn's phone number?
- The practice phone number listed in the NPPES registry for James Ahn is (626) 969-6728.
- Does James Ahn accept Medicare?
- James Ahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Ahn's NPI active?
- Yes — James Ahn's NPI (1164462263) 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.