Suyoung Chang, M.D.
NPI 1609978949 · Allergy & Immunology Physician · Bethesda, MD
Enrolled with Medicare as Order and Referring Only - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Suyoung Chang, M.D. is a Allergy & Immunology Physician provider in Bethesda, MD (NPI 1609978949).
Provider details
- NPI number
- 1609978949
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 0101235815 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-05
- Last updated
- 2024-02-05
- Certified
- 2024-02-05
Frequently asked questions
- What is Suyoung Chang's NPI number?
- Suyoung Chang's National Provider Identifier (NPI) is 1609978949, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Suyoung Chang's specialty?
- Suyoung Chang is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Suyoung Chang located?
- Suyoung Chang's practice location on file with NPPES is 8901 Wisconsin Avenue, Bethesda, MD 20889-5600.
- What is Suyoung Chang's phone number?
- The practice phone number listed in the NPPES registry for Suyoung Chang is (301) 897-0850.
- Does Suyoung Chang accept Medicare?
- Suyoung Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Suyoung Chang's NPI active?
- Yes — Suyoung Chang's NPI (1609978949) is active in the NPPES registry as of the last update on 2024-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.