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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.

DR. KATHERINE J MATHEWS MD
NPI 1891860383
Obstetrics & Gynecology - Obstetrics in Boston, MA

Active since November 21, 2006
20 BRADSTON ST, BOSTON, MA 02118(774) 319-1355 Get Directions Write a Review

NPPES record last updated: September 1, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Sep 1, 2026, Jan 21, 2021, Nov 6, 2020 (3 updates tracked since 2020).

About Dr. Katherine J Mathews Md NPPES

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

DR. KATHERINE J MATHEWS MD (NPI 1891860383) is an individual obstetrics provider in Boston, Massachusetts, licensed in Massachusetts (PHY108795) and active in the NPI registry since November 2006.

NPPES Registry Identity

NPI1891860383
Entity TypeIndividualFemale
Primary Taxonomy207VX0000X
Provider Legal NameDR. KATHERINE J MATHEWSCredential: MD
Location Address20 BRADSTON STBoston, MA 02118-2705
Mailing Address300 Congress St Ste 405Quincy, MA 02169-0911 · (774) 319-1355
Phone(774) 319-1355
Sole ProprietorNo
Enumeration DateNovember 21, 2006
Last NPPES UpdateSeptember 1, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 1, 2026
✔ NPI 1891860383 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · ObstetricsAllopathic & Osteopathic Physicians
Taxonomy Code207VX0000X
License✔ Licensed in MA · PHY108795
Definition
A physician who specializes in diagnosis, treatment, and management of patients with obstetric conditions. Source: National Uniform Claim Committee
20 BRADSTON ST, Boston, MA 02118
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company.Insurance ›

Other Providers at the Same Location NPPES 7

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

MS. LAURA MONROE WILL N.P., R.N.
Nurse Practitioner
20 BRADSTON ST, ATTN: MEDICAL SERVICES DEPT H.S.A SUFFOLK CORRECTIONS
BOSTON, MA 02118
Suffolk County (617) 635-1000
JUDITH BAZINET LICSW
Social Worker
20 BRADSTON ST
BOSTON, MA 02118
Suffolk County (781) 635-0914
REBECCA KELLY FNP-C
Nurse Practitioner (Family)
20 BRADSTON ST
BOSTON, MA 02118
Suffolk County (617) 635-1000
SABRINA RAYMOND
Nurse Practitioner (Primary Care)
20 BRADSTON ST
BOSTON, MA 02118
Suffolk County (617) 635-1000
WANTY PHU MSW, LICSW
Social Worker (Clinical)
20 BRADSTON ST
BOSTON, MA 02118
Suffolk County (617) 635-1000
WHITNEY BELLEW PA
Physician Assistant
20 BRADSTON ST
BOSTON, MA 02118
Suffolk County (617) 445-4829
JENNYFER DELVA
Physician Assistant
20 BRADSTON ST
BOSTON, MA 02118
Suffolk County (617) 635-1000

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 Katherine Mathews's NPI number?

The NPI number for Katherine Mathews is 1891860383. It was assigned to this individual provider in the NPPES registry on November 21, 2006.

Where is Katherine Mathews located?

Katherine Mathews practices at 20 Bradston St, Boston, MA 02118. The listed phone number is (774) 319-1355.

What is Katherine Mathews's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Obstetrics, with taxonomy code 207VX0000X.

What insurance does Katherine Mathews accept?

Health plans from Oscar Insurance Company list Katherine Mathews as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Katherine Mathews was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.