KATHERINE WILLIAMS DUHAMEL PA-C
NPI 1497261168
Physician Assistant in Cambridge, MA

Q: What is Katherine Duhamel's NPI number?

The NPI number for Katherine Duhamel is 1497261168. It was assigned to this individual provider in the NPPES registry on December 18, 2017.

Q: What is Katherine Duhamel's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Katherine Duhamel was last updated on December 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since December 18, 2017PECOS EnrolledAccepts Medicare Assignment

1493 CAMBRIDGE ST, CAMBRIDGE, MA 02139(617) 665-1000 Get Directions Write a Review

NPPES record last updated: December 3, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 3, 2025, Aug 13, 2025, Jan 4, 2019 and 1 more (4 updates tracked since 2017).

On this page

About Katherine Williams Duhamel Pa-c NPPES

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

KATHERINE WILLIAMS DUHAMEL PA-C (NPI 1497261168) is an individual physician assistant in Cambridge, Massachusetts, licensed in Massachusetts (PA6492) and active in the NPI registry since December 2017. She is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and is a graduate of Tufts University School Of Medicine (2018).

NPPES Registry Identity

NPI1497261168

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameKATHERINE WILLIAMS DUHAMELCredential: PA-C

Location Address1493 CAMBRIDGE STCambridge, MA 02139-1047

Mailing AddressCambridge Hospital, 1493 Cambridge StreetCambridge, MA 02139 · (617) 498-1660

Phone(617) 665-1000

Sole ProprietorNo

Medical School CMSTufts University School Of MedicineGraduated 2018

Enumeration DateDecember 18, 2017

Last NPPES UpdateDecember 3, 20254 updates tracked since enumeration

NPPES CertifiedDecember 3, 2025

✔ NPI 1497261168 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in MA · PA6492

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

1493 CAMBRIDGE ST, Cambridge, MA 02139

Open in Google Maps ↗

Other Identifiers 1

Medicaid110029050AMA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Katherine Williams Duhamel Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6709141088

PECOS Enrollment IDI20180608000063

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Boston Medical Center

Acute Care Hospitals · Boston, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220031

Location1 Boston Medical Center PlaceBoston, MA 02118 · Suffolk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02139 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$97.64 typical visit price

range $63.72 – $189.86

Typical copayment $24.41 (range $15.93 – $47.46)

Most-billed visit code 99203

Established Patient

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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