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EUNICE PEREIRA KOWALCZYK DNP, PMHNP
NPI 1457995417
Nurse Practitioner - Psychiatric/Mental Health in Westborough, MA

Active since November 03, 2019PECOS EnrolledAccepts Medicare Assignment
900 UNION ST, WESTBOROUGH, MA 01581(508) 856-0732(508) 425-5126 Get Directions Write a Review

NPPES record last updated: May 5, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 5, 2025, Sep 10, 2023, Nov 9, 2019 and 1 more (4 updates tracked since 2019).

About Eunice Pereira Kowalczyk Dnp, Pmhnp NPPES

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

EUNICE PEREIRA KOWALCZYK DNP, PMHNP (NPI 1457995417) is an individual psychiatric/mental health provider in Westborough, Massachusetts, licensed in Massachusetts (RN2277843) and active in the NPI registry since November 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1457995417
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameEUNICE PEREIRA KOWALCZYKCredential: DNP, PMHNP
Location Address900 UNION STWestborough, MA 01581-5408
Mailing Address900 Union StWestborough, MA 01581-5408 · (508) 856-0732 · Fax (508) 425-5126
Phone(508) 856-0732
Fax(508) 425-5126
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateNovember 3, 2019
Last NPPES UpdateMay 5, 20254 updates tracked since enumeration
NPPES CertifiedMay 5, 2025
✔ NPI 1457995417 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MA · RN2277843
900 UNION ST, Westborough, MA 01581
Open in Google Maps ↗

Other Identifiers 1

Medicaid110157687AMA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care.Insurance ›

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

Eunice Pereira Kowalczyk Dnp, Pmhnp 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 ID6709217755
PECOS Enrollment IDI20200507002665
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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
86 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01581 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
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
Most-billed visit code 99214
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.

JUDITH A MCNICHOLAS MD
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
900 UNION ST
WESTBOROUGH, MA 01581
Worcester County (508) 871-0700
QUEST DIAGNOSTICS MASSACHUSETTS LLC
Clinical Medical Laboratory
900 UNION ST
WESTBOROUGH, MA 01581
Worcester County (866) 697-8378
KERRIE MCFEETERS N.P.
Nurse Practitioner (Pediatrics)
900 UNION ST
WESTBOROUGH, MA 01581
Worcester County (508) 898-2338
SWATI S SANE M.D.
Pediatrics
900 UNION ST
WESTBOROUGH, MA 01581
Worcester County (508) 898-2338
RELIANT MEDICAL GROUP
Optometrist
900 UNION ST
WESTBOROUGH, MA 01581
Worcester County (508) 856-9599
NINAD N SAMANT MD
Internal Medicine
900 UNION ST
WESTBOROUGH, MA 01581
Worcester County (508) 871-0700
SUSAN E KELLOGG PA
Physician Assistant
900 UNION ST
WESTBOROUGH, MA 01581
Worcester County (508) 871-0700
MARGARET R HINES MD
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
900 UNION ST
WESTBOROUGH, MA 01581
Worcester County (508) 870-9350

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 Eunice Kowalczyk's NPI number?

The NPI number for Eunice Kowalczyk is 1457995417. It was assigned to this individual provider in the NPPES registry on November 3, 2019.

Where is Eunice Kowalczyk located?

Eunice Kowalczyk practices at 900 Union St, Westborough, MA 01581. The listed phone number is (508) 856-0732.

What is Eunice Kowalczyk's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Eunice Kowalczyk enrolled in Medicare?

Yes. Eunice Kowalczyk is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Eunice Kowalczyk accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Eunice Kowalczyk 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 Eunice Kowalczyk was last updated on May 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.