Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Primary Care North PC

Internal Medicine Physician in Lynn, MA · enumerated 2007 · authorized official Walter Nalesnik, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649392416

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Registry record

Entity type Organization (Type 2)

Legal business name Primary Care North PC

Practice address 225 Boston St, Suite 204, Lynn, MA, 01904

Phone (781) 595-9581

Fax (781) 595-9628

Enumeration date Apr 4, 2007

Last updated in NPPES Dec 30, 2021

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 53680 (MA) Primary

261QP2300X Primary Care Clinic/Center Ambulatory Health Care Facilities Secondary

Authorized official

Name Walter Nalesnik

Title Owner

Phone (781) 595-9581

Other identifiers

Identifier	Type	State	Issuer
B1002301	Other	MD	CIGNA
703505	Other	MD	TUFTS
80744	Other	MA	FALLON
9705121	Medicaid	MA	-
J04507	Other	MA	BCBS
9037	Other	MA	US HEALTH
65494	Other	MA	HPHC
0400048	Other	MD	UNITED

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Primary Care North PC located?

The practice location on file with NPPES is in Lynn, MA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2021-12-30. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-30.