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WILLIAM RYAN PETERSON MD
NPI 1972441947
Student in an Organized Health Care Education/Training Program in Cambridge, MA

Active since March 23, 2026
1493 CAMBRIDGE ST, CAMBRIDGE, MA 02139(617) 665-1000 Get Directions Write a Review

NPPES record last updated: March 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William Ryan Peterson Md NPPES

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

WILLIAM RYAN PETERSON MD (NPI 1972441947) is an individual student in an organized health care education/training program in Cambridge, Massachusetts and active in the NPI registry since March 2026.

NPPES Registry Identity

NPI1972441947
Entity TypeIndividualMale
Primary Taxonomy390200000X
Provider Legal NameWILLIAM RYAN PETERSONCredential: MD
Location Address1493 CAMBRIDGE STCambridge, MA 02139-1099
Mailing Address1493 Cambridge StCambridge, MA 02139-1099
Phone(617) 665-1000
Sole ProprietorNo
Enumeration DateMarch 23, 2026
NPPES CertifiedMarch 23, 2026
✔ NPI 1972441947 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
1493 CAMBRIDGE ST, Cambridge, MA 02139
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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.

ZACHARY OLIFF DO
Emergency Medicine
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1000
JACOB DYLAN WOLFE LICSW
Social Worker (Clinical)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1646
SARAH-JO SANTILLI RN
Registered Nurse
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 272-6455
JULIE LYNNE MERCER
Registered Nurse
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 591-4212
TAIANA KATSARAS LICSW
Social Worker (Clinical)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1185
ANGELA DE SILVA
Registered Nurse (Ambulatory Care)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1000
RORY HAUSER
Registered Nurse (Neonatal, Low-Risk)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (802) 595-9868
CASEY TRAN
Occupational Therapist
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1000

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 William Peterson's NPI number?

The NPI number for William Peterson is 1972441947. It was assigned to this individual provider in the NPPES registry on March 23, 2026.

Where is William Peterson located?

William Peterson practices at 1493 Cambridge St, Cambridge, MA 02139. The listed phone number is (617) 665-1000.

What is William Peterson's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

When was this NPI record last updated?

The NPPES record for William Peterson was last updated on March 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.