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

Individual provider Internal Medicine Physician · NPI 1851853030

Karen L. Vega, MD practises Internal Medicine in Boston, Massachusetts. Qualified in 2013, 13 years ago. Practices with Massachusetts Acute Care Specialists PC, a 46-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and New York.

Years since qualifying
13
Licensed in
MA, NY
In the registry since
2019
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

800 Washington St
Boston, MA 02111-1552
Phone: (617) 636-8272
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 462 Grider St, Buffalo, NY 14215-3021 — (716) 898-4578

Specialties & licences

Student in an Organized Health Care Education/Training Program (primary) Taxonomy 390200000X (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 294786 (MA)

Record details

NPI number1851853030
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 4, 2019
Last updated in NPPESNovember 13, 2024
Certification dateNovember 13, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice Massachusetts Acute Care Specialists Pc — 46 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
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 patients139
Services billed 311 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. Those with a page here are linked.

Colleagues at Massachusetts Acute Care Specialists PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 46 clinicians in the practice; 12 are shown here.

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