Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Halina E Polek-Nowakowska, MD

Gastroenterology Physician in Gonzales, LA · enumerated 2006.

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

National Provider Identifier

1861598658

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Registry record

Entity type Individual (Type 1)

Name Halina E Polek-Nowakowska

Credential MD

Sex Female

Practice address 14076 Highway 44, Gonzales, LA, 70737

Phone (225) 647-6900

Fax (225) 644-1453

Enumeration date Sep 16, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 12975R (LA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
G1371	Other	LA	BC 5 DIGIT
2208674	Other	LA	AETNA
1556785	Medicaid	LA	-
2767289001	Other	LA	CIGNA
29-00182	Other	LA	UHC

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

How do I verify Halina Polek-Nowakowska's NPI record?

Cross-check NPI 1861598658 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1861598658 active?

Yes, as of the latest NPPES snapshot, NPI 1861598658 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.