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

Gabriel Simon Chain, MD

Individual provider Pediatrics Physician · NPI 1659831139

Gabriel Simon Chain, MD is a Hospice/Palliative Care in Boston, Massachusetts. Qualified in 2017, 9 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group and accepts Medicare assignment. Licensed in Delaware, Massachusetts and New Jersey.

Years since qualifying
9
Licensed in
DE, MA, NJ
In the registry since
2019
Specialties on file
5
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

Pediatric Hospice and Palliative Medicine Physician (primary) Taxonomy 2080H0002X · Licence 1022192 (MA)
Pediatrics Physician Taxonomy 208000000X · Licence 25MA11471000 (NJ)
Pediatrics Physician Taxonomy 208000000X · Licence 1022192 (MA)
Pediatric Hospice and Palliative Medicine Physician Taxonomy 2080H0002X · Licence C1-0026873 (DE)
Hospitalist Physician Taxonomy 208M00000X · Licence 25MA11471000 (NJ)

Record details

NPI number1659831139
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 21, 2019
Last updated in NPPESJuly 25, 2025
Certification dateJuly 25, 2025

Medicare enrollment

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

Medicare specialtyHOSPICE/PALLIATIVE CARE
Also practisesPEDIATRIC MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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