Hweejo Byun, DDS
NPI 1821439324 · Dentist · New Haven, CT
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hweejo Byun, DDS is a Dentist provider in New Haven, CT (NPI 1821439324).
Provider details
- NPI number
- 1821439324
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- Yes
- License
- 390200000 (CT)
Specialties & taxonomies
Dental Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
- 2013-07-12
- Last updated
- 2023-10-05
- Certified
- 2023-10-05
Frequently asked questions
- What is Hweejo Byun's NPI number?
- Hweejo Byun's National Provider Identifier (NPI) is 1821439324, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hweejo Byun's specialty?
- Hweejo Byun is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Hweejo Byun located?
- Hweejo Byun's practice location on file with NPPES is 20 York St # T209, New Haven, CT 06510-3220.
- What is Hweejo Byun's phone number?
- The practice phone number listed in the NPPES registry for Hweejo Byun is (203) 688-2259.
- Does Hweejo Byun accept Medicare?
- Hweejo Byun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hweejo Byun's NPI active?
- Yes — Hweejo Byun's NPI (1821439324) is active in the NPPES registry as of the last update on 2023-10-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.