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

Catherine Ann Sullivan, MD

Individual provider Internal Medicine Physician · NPI 1598031403

Catherine Ann Sullivan, MD practises Endocrinology in Boston, Massachusetts. Graduated from Boston University School of Medicine in 2012, 14 years ago. Practices with Internal Medical Associates-Ebnhc, a 242-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
14
Trained at
Boston University School of Medicine
Licensed in
MA
In the registry since
2012
Specialties on file
2
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

732 Harrison Ave Preston 2nd Fl
Boston, MA 02118
Phone: (617) 638-7470
Fax: (617) 638-7449
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 269544 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 269544 (MA)

Record details

NPI number1598031403
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 25, 2012
Last updated in NPPESSeptember 7, 2017

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolBOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice Internal Medical Associates-Ebnhc — 242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 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 patients157
Services billed 358 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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 Internal Medical Associates-Ebnhc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 242 clinicians in the practice; 12 are shown here.

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