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

Katherine M Nichols, MD

Individual provider Internal Medicine Physician · NPI 1396158143

Katherine M Nichols, MD is registered under Cardiovascular Disease (Cardiology) in Boston, Massachusetts. Graduated from Tufts University School of Medicine in 2014, 12 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Illinois, Massachusetts and New Hampshire.

Years since qualifying
12
Trained at
Tufts University School of Medicine
Licensed in
IL, MA, NH
In the registry since
2014
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

55 Fruit Street Yawkey 3B
Boston, MA 02114-2696
Phone: (617) 726-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 75 Francis St, Boston, MA 02115-6110 — (617) 732-5636

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 284087 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125065094 (IL)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 3141 (NH)

Record details

NPI number1396158143
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 10, 2014
Last updated in NPPESApril 15, 2025
Certification dateApril 15, 2025

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations11 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients1,931
Services billed 2,764 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Massachusetts General Physicians Organization Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3484 clinicians in the practice; 12 are shown here.

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