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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.

HALINA B SLOWIK NP
NPI 1205892635
Nurse Practitioner in Boston, MA

Active since April 25, 2006
55 FRUIT STREET, WHT 1, BOSTON, MA 02114(617) 726-0313 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Halina B Slowik Np NPPES

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

HALINA B SLOWIK NP (NPI 1205892635) is an individual nurse practitioner in Boston, Massachusetts, licensed in Massachusetts (165556) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1205892635
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameHALINA B SLOWIKCredential: NP
Location Address55 FRUIT STREET, WHT 1Boston, MA 02114-3117
Mailing AddressPo Box 9142, Mass General Physicians Organization IncCharlestown, MA 02129-9142 · (617) 724-0287 · Fax (617) 726-2894
Phone(617) 726-0313
Sole ProprietorNo
Enumeration DateApril 25, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1205892635 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in MA · 165556
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
55 FRUIT STREET, Boston, MA 02114
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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.

KUI TOH GERARD LEONG M.D.
Internal Medicine (Cardiovascular Disease)
55 FRUIT STREET, MASSACHUSETTS GENERAL HOSPITAL
BOSTON, MA 02114
Suffolk County (617) 726-8862
MS. JACQUELINE BANGO LICSW
Social Worker (Clinical)
55 FRUIT STREET, FOUNDERS BUILDING SUITE 880
BOSTON, MA 02114
Suffolk County (617) 643-8281
SARA ELIZABETH GROSSLEIN PA
Physician Assistant
55 FRUIT STREET, WHITE 1
BOSTON, MA 02114
Suffolk County (617) 724-4100
JEFFREY M ELLENBOGEN M.D.
Psychiatry & Neurology (Neurology)
55 FRUIT STREET, WANG 720 (NEUROLOGY)
BOSTON, MA 02114
Suffolk County (617) 724-7419
DR. NANCY LEE HARRIS MD
Pathology (Anatomic Pathology & Clinical Pathology)
55 FRUIT STREET, WRN 2 PATHOLOGY ASSOCIATES
BOSTON, MA 02114
Suffolk County (617) 726-5155
DR. STANLEY YANG SHAW MD PHD
Internal Medicine (Cardiovascular Disease)
55 FRUIT STREET, YAW 5 CARDIAC UNIT ASSOCIATES
BOSTON, MA 02114
Suffolk County (617) 724-6750
LEONARDO V RIELLA M.D., PHD
Internal Medicine
55 FRUIT STREET, WHITE 5
BOSTON, MA 02114
Suffolk County (617) 726-5050
SUSAN MAHER CRNA
Nurse Anesthetist, Certified Registered
55 FRUIT STREET, CLN 309 MGH ANESTHESIA ASSOCIATES
BOSTON, MA 02114
Suffolk County (617) 726-3030

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 Halina Slowik's NPI number?

The NPI number for Halina Slowik is 1205892635. It was assigned to this individual provider in the NPPES registry on April 25, 2006.

Where is Halina Slowik located?

Halina Slowik practices at 55 Fruit Street Wht 1, Boston, MA 02114. The listed phone number is (617) 726-0313.

What is Halina Slowik's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

When was this NPI record last updated?

The NPPES record for Halina Slowik was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 55 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.