Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1972489722 Individual Practitioner Female Practitioner

Dr. Janis Chang , MD

Dermatology • Boston, MA

Professional Overview & Biography Verified Profile Summary

Dr. Janis Chang, MD is a registered healthcare professional specializing in Dermatology in Boston, MA. Practice services are available at 221 LONGWOOD AVE under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

221 Longwood Ave

Boston, MA 021155804

Telephone 6177324918
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Dermatology in Boston, MA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 16.4 Yrs
State Avg: 27.5 Yrs
Regional Practice Density
270 Specialists

Practicing in Boston, MA (648 Statewide)

Telehealth Adoption Rate
18.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2025-08-14
Dermatology Primary Specialty

NUCC Taxonomy Code: 207N00000X

State License MA 3018940

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

38 Associated Practitioners
NPI 1124154554

Doctor of Medicine (M.D.)

NPI 1134568785

Doctor of Medicine (M.D.)

NPI 1144857392

Doctor of Medicine (M.D.)

Dr. Nina Ran , MD

Dermatology - MOHS-Micrographic Surgery

NPI 1164915047

Doctor of Medicine (M.D.)

NPI 1174580906

Doctor of Medicine (M.D.)

Dr. Paul Massey , MD

Dermatology - MOHS-Micrographic Surgery

NPI 1174943690

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active August 14, 2025

NPI status registered as active in NPPES database

📍
Updated Practice Location August 14, 2025

Registered at 221 LONGWOOD AVE, BOSTON, MA 021155804 (Tel: 6177324918)

📍
Updated Business Mailing Address August 14, 2025

Registered at 221 LONGWOOD AVE, BOSTON, MA 021155804

👤
Provider Name / Credentials Updated August 14, 2025

Recorded as JANIS CHANG, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 14, 2025

Dermatology (License #3018940 in MA)

🟢
Initial NPI Registration & Enumeration August 14, 2025

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1972489722
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 14, 2025
Last Update: August 14, 2025
Sole Proprietor: No

Mailing Address

221 Longwood Ave

Boston, MA 021155804

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.