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

Dr. Sarah Elizabeth Shannahan, MD

Individual provider Gastroenterology Physician · NPI 1528470143

Dr. Sarah Elizabeth Shannahan, MD is a Gastroenterology in Boston, Massachusetts. Graduated from University of Massachusetts Medical School in 2014, 12 years ago. Practices with Gbgastro LLC, a 22-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
12
Trained at
University of Massachusetts Medical School
Licensed in
MA
In the registry since
2014
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

330 Brookline Ave
Boston, MA 02215-5400
Phone: (617) 667-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 259668 (MA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 269875 (MA)

Record details

NPI number1528470143
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 2, 2014
Last updated in NPPESFebruary 24, 2025
Certification dateFebruary 24, 2025

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2014 (12 years in practice)
Group practice Gbgastro Llc — 22 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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