Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Allen Chang, MD

Individual provider Internal Medicine Physician · NPI 1225265051

Dr. Allen Chang, MD is an Internal Medicine in Worcester, Massachusetts. Graduated from University of Massachusetts Medical School in 2009, 17 years ago. Practices with Umass Memorial Medical Group Inc, a 2,467-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
17
Trained at
University of Massachusetts Medical School
Licensed in
MA
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

55 Lake Ave N Adult Primary Care
Worcester, MA 01655-0002
Phone: (508) 334-2731
Fax: (774) 442-4672
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 249481 (MA)

Record details

NPI number1225265051
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 19, 2009
Last updated in NPPESSeptember 28, 2023
Certification dateSeptember 28, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesGERIATRIC MEDICINE
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2009 (17 years in practice)
Group practice Umass Memorial Medical Group Inc — 2467 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Worcester