Yeonjay Sung, M.D.
NPI 1669300380 · Student in an Organized Health Care Education/Training Program · Boston, MA
Yeonjay Sung, M.D. is a Student in an Organized Health Care Education/Training Program provider in Boston, MA (NPI 1669300380).
Provider details
- NPI number
- 1669300380
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% 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
- 2026-05-12
- Last updated
- 2026-05-12
Frequently asked questions
- What is Yeonjay Sung's NPI number?
- Yeonjay Sung's National Provider Identifier (NPI) is 1669300380, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yeonjay Sung's specialty?
- Yeonjay Sung is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Yeonjay Sung located?
- Yeonjay Sung's practice location on file with NPPES is 736 Cambridge Street, Boston, MA 02135.
- What is Yeonjay Sung's phone number?
- The practice phone number listed in the NPPES registry for Yeonjay Sung is (617) 799-6342.
- Is Yeonjay Sung's NPI active?
- Yes — Yeonjay Sung's NPI (1669300380) is active in the NPPES registry as of the last update on 2026-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.