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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

REBECCA A SILLIMAN M.D.
NPI 1598736076
Internal Medicine - Geriatric Medicine in Boston, MA

Active since January 31, 2006
850 HARRISON AVE, GERIATRICS, BOSTON, MA 02118(617) 638-6100 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Rebecca A Silliman M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

REBECCA A SILLIMAN M.D. (NPI 1598736076) is an individual geriatric medicine provider in Boston, Massachusetts, licensed in Massachusetts (74101) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1598736076
Entity TypeIndividualFemale
Primary Taxonomy207RG0300X
Provider Legal NameREBECCA A SILLIMANCredential: M.D.
Location Address850 HARRISON AVE, GERIATRICSBoston, MA 02118-4072
Mailing Address88 E Newton St, F-4Boston, MA 02118-2658
Phone(617) 638-6100
Sole ProprietorNo
Enumeration DateJanuary 31, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1598736076 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in MA · 74101
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
850 HARRISON AVE, Boston, MA 02118
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Other Identifiers 1

Medicaid3076946MA

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SHEELA S MARU MD
Obstetrics & Gynecology
850 HARRISON AVE, YACC 4
BOSTON, MA 02118
Suffolk County (617) 414-2000
LIDYA H WLASIUK M.D.
Family Medicine
850 HARRISON AVE, YACC 5
BOSTON, MA 02118
Suffolk County (617) 414-2080
DEBORAH A FRANK MD
Pediatrics
850 HARRISON AVE, YACC5
BOSTON, MA 02118
Suffolk County (617) 414-4841
BRIAN R PENTI M.D.
Family Medicine
850 HARRISON AVE, YACC 4
BOSTON, MA 02118
Suffolk County (617) 414-2080
MARY CHIN LICSW
Social Worker (Clinical)
850 HARRISON AVE, DOWLING 9
BOSTON, MA 02118
Suffolk County (617) 414-4672
ADELIZA OLIVERO MD
Psychiatry & Neurology (Psychiatry)
850 HARRISON AVE
BOSTON, MA 02118
Suffolk County (617) 414-5245
JEAN EWAN CNM
Advanced Practice Midwife
850 HARRISON AVE, YAWKEY 4TH FLOOR
BOSTON, MA 02118
Suffolk County (617) 414-2000
DOREEN LINEHAN RN
Registered Nurse
850 HARRISON AVE, DOWLING NORTH, SUITE 5108
BOSTON, MA 02118
Suffolk County (617) 638-7062

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rebecca Silliman's NPI number?

The NPI number for Rebecca Silliman is 1598736076. It was assigned to this individual provider in the NPPES registry on January 31, 2006.

Where is Rebecca Silliman located?

Rebecca Silliman practices at 850 Harrison Ave Geriatrics, Boston, MA 02118. The listed phone number is (617) 638-6100.

What is Rebecca Silliman's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

When was this NPI record last updated?

The NPPES record for Rebecca Silliman was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.