What is Hyung-Jun Ahn's NPI number?

Hyung-Jun Ahn's National Provider Identifier (NPI) is 1508989476, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Hyung-Jun Ahn's specialty?

Hyung-Jun Ahn is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).

Where is Hyung-Jun Ahn located?

Hyung-Jun Ahn's practice location on file with NPPES is 57 Bedford St, Lexington, MA 02420-4500.

What is Hyung-Jun Ahn's phone number?

The practice phone number listed in the NPPES registry for Hyung-Jun Ahn is (781) 861-8978.

Does Hyung-Jun Ahn accept Medicare?

Hyung-Jun Ahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Hyung-Jun Ahn's NPI active?

Yes — Hyung-Jun Ahn's NPI (1508989476) is active in the NPPES registry as of the last update on 2007-07-08.

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Hyung-Jun Ahn, DMD

NPI 1508989476 · General Practice Dentistry · Lexington, MA

Hyung-Jun Ahn, DMD is a General Practice Dentistry provider in Lexington, MA (NPI 1508989476).

Provider details

NPI number: 1508989476
Entity type: Individual
Primary specialty: General Practice DentistryDental Providers
Credential: DMD
Sex: Male
Sole proprietor: No
License: 21091 (MA)

Practice location

57 Bedford St

#205

Lexington, MA 02420-4500

Phone: (781) 861-8978

Street-level locationGet directions

More MA providers

Mailing address

55 Curtis St

Reading, MA 01867-3904

Specialties & taxonomies

General Practice DentistryPrimary1223G0001XLicense 21091 (MA)
Dental Providers

Enrolled with Medicare as Order and Referring Only - Other (physician) · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(90/100 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.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Amoxicillin	18	11

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include 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.

Enumerated: 2007-04-07
Last updated: 2007-07-08

Frequently asked questions

What is Hyung-Jun Ahn's NPI number?: Hyung-Jun Ahn's National Provider Identifier (NPI) is 1508989476, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Hyung-Jun Ahn's specialty?: Hyung-Jun Ahn is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
Where is Hyung-Jun Ahn located?: Hyung-Jun Ahn's practice location on file with NPPES is 57 Bedford St, Lexington, MA 02420-4500.
What is Hyung-Jun Ahn's phone number?: The practice phone number listed in the NPPES registry for Hyung-Jun Ahn is (781) 861-8978.
Does Hyung-Jun Ahn accept Medicare?: Hyung-Jun Ahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Hyung-Jun Ahn's NPI active?: Yes — Hyung-Jun Ahn's NPI (1508989476) 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.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Frequently asked questions