Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

KATHARINE PETERSEN
NPI 1386561140
Counselor - Mental Health in Westfield, MA

Active since July 02, 2026
77 MILL ST, WESTFIELD, MA 01085(413) 568-6141 Get Directions Write a Review

NPPES record added: July 2, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Katharine Petersen NPPES

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

KATHARINE PETERSEN (NPI 1386561140) is an individual mental health provider in Westfield, Massachusetts and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1386561140
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameKATHARINE PETERSEN
Location Address77 MILL STWestfield, MA 01085-4598
Mailing Address77 Mill StWestfield, MA 01085-4598 · Fax (413) 568-6141
Sole ProprietorNo
Enumeration DateJuly 2, 2026
NPPES CertifiedJuly 2, 2026
NPI 1386561140 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
77 MILL ST, Westfield, MA 01085

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.

Social Worker (Clinical)
77 MILL ST
WESTFIELD, MA 01085
Counselor
77 MILL ST, SUITE 251
WESTFIELD, MA 01085
Social Worker (Clinical)
77 MILL ST, SUITE 251
WESTFIELD, MA 01085
Social Worker (Clinical)
77 MILL ST, SUITE 251
WESTFIELD, MA 01085
Social Worker (Clinical)
77 MILL ST
WESTFIELD, MA 01085
Social Worker (Clinical)
77 MILL ST
WESTFIELD, MA 01085
Counselor
77 MILL ST
WESTFIELD, MA 01085
Counselor
77 MILL ST
WESTFIELD, MA 01085

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 Katharine Petersen's NPI number?

The NPI number for Katharine Petersen is 1386561140. It was assigned to this individual provider in the NPPES registry on July 2, 2026.

Where is Katharine Petersen located?

Katharine Petersen practices at 77 Mill St, Westfield, MA 01085. The listed phone number is (413) 568-6141.

What is Katharine Petersen's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Katharine Petersen was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 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.