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

Gregory Baker

Individual provider Internal Medicine Physician · NPI 1255726667

Gregory Baker is a Cardiovascular Disease (Cardiology) in Boston, Massachusetts. Qualified in 2015, 11 years ago. Practices with Cardiology Physicians, LLC, a 46-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
11
Licensed in
MA
In the registry since
2015

Practice location Address checks out

801 Massachusetts Ave Crosstown 2
Boston, MA 02118-2605
Phone: (617) 414-7399
Fax: (617) 414-4676
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 274252 (MA)

Record details

NPI number1255726667
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedApril 2, 2015
Last updated in NPPESJune 5, 2018

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesINTERVENTIONAL CARDIOLOGY
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Cardiology Physicians, Llc — 46 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Other providers in Boston