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

Peiyun Ni, MD

Individual provider Gastroenterology Physician · NPI 1386270304

Peiyun Ni, MD is a Gastroenterology in Boston, Massachusetts. Graduated from Harvard Medical School in 2020, 6 years ago. Licensed in Massachusetts.

Years since qualifying
6
Trained at
Harvard Medical School
Licensed in
MA
In the registry since
2020
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 St
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.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 1018921 (MA)

Record details

NPI number1386270304
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 21, 2020
Last updated in NPPESMarch 17, 2026
Certification dateMarch 17, 2026

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2020 (6 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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