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

Dr. Xiao Tan, MD, PHD

Individual provider Gastroenterology Physician · NPI 1801181854

Dr. Xiao Tan, MD, PHD is an Internal Medicine in Boston, Massachusetts. Graduated from Stanford University School of Medicine in 2011, 15 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 Massachusetts.

Years since qualifying
15
Trained at
Stanford University School of Medicine
Licensed in
MA
In the registry since
2011
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

55 Fruit Street Blake 4
Boston, MA 02114
Phone: (617) 643-6361
Fax: (617) 724-6832
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 330 Brookline Ave, Boston, MA 02215-5400 — (617) 667-7000

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 268832 (MA)

Record details

NPI number1801181854
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 16, 2011
Last updated in NPPESMay 15, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolSTANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated 2011 (15 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 locations3 on file with Medicare

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