Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Jack Peter Kotlarz, MD

Plastic Surgery within the Head & Neck (Otolaryngology) Physician in Rockford, IL · enumerated 2005 · practices at Swedishamerican Hospital.

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

National Provider Identifier

1922090646

Verified

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Registry record

Entity type Individual (Type 1)

Name Jack Peter Kotlarz

Credential MD

Sex Male

Practice address Rockford, IL, 61107

Phone (779) 696-9201

Fax (815) 397-9667

Enumeration date Aug 18, 2005

Last updated in NPPES Dec 10, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License ME62757 (FL) Secondary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License ME62757 (FL) Secondary

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License 2024013411 (MO) Secondary

207YX0007X Plastic Surgery within the Head & Neck (Otolaryngology) Physician Allopathic & Osteopathic Physicians · License 036170362 (IL) 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
4314144	Other	FL	AETNA
7618346003	Other	FL	CIGNA PPO
009900475	Other	AL	MEDICAID ALA
040016528	Other	FL	UHC MCR RR
590 51780	Other	AL	BCBS OF ALA
253548300	Medicaid	FL	-
42544	Other	FL	BCBS OF FLORIDA

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.

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Frequently asked questions

How do I verify Jack Kotlarz's NPI record?

Cross-check NPI 1922090646 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1922090646 active?

Yes, as of the latest NPPES snapshot, NPI 1922090646 is active (record last updated 2024-12-10).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-10.