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

Casey Callahan, MD

Individual provider Family Medicine Physician · NPI 1225657919

Casey Callahan, MD is a Family Practice in Somerville, Massachusetts. Graduated from Jefferson Medical College of Thomas Jefferson University in 2020, 6 years ago. Practices with Cambridge Public Health Commission, a 649-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
6
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
MA
In the registry since
2020
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

300 Broadway
Somerville, MA 02145-2935
Phone: (617) 284-7000
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

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 1015482 (MA)

Record details

NPI number1225657919
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 13, 2020
Last updated in NPPESSeptember 19, 2023
Certification dateSeptember 19, 2023
Mailing address300 Broadway, Somerville, MA 02145-2935

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 2020 (6 years in practice)
Group practice Cambridge Public Health Commission — 649 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Somerville