What is Janis Chang's NPI number?

Janis Chang's National Provider Identifier (NPI) is 1972489722, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Janis Chang's specialty?

Janis Chang is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).

Where is Janis Chang located?

Janis Chang's practice location on file with NPPES is 221 Longwood Ave, Boston, MA 02115-5804.

What is Janis Chang's phone number?

The practice phone number listed in the NPPES registry for Janis Chang is (617) 732-4918.

Is Janis Chang's NPI active?

Yes — Janis Chang's NPI (1972489722) is active in the NPPES registry as of the last update on 2025-08-14.

IndividualActive

Janis Chang, MD

NPI 1972489722 · Dermatology Physician · Boston, MA

Janis Chang, MD is a Dermatology Physician provider in Boston, MA (NPI 1972489722).

Provider details

NPI number: 1972489722
Entity type: Individual
Primary specialty: Dermatology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: 3018940 (MA)

Specialties & taxonomies

Dermatology PhysicianPrimary207N00000XLicense 3018940 (MA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(54/100 index)

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
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

221 Longwood Ave

Boston, MA 02115-5804

Phone: (617) 732-4918

Approximate (ZIP-level) locationGet directions

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Mailing address