NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Paul Kowalczyk, M.D.

Dermatology Physician in Jupiter, FL · enumerated 2010 · practices at Advanced Allergy, Asthma & Sinus Care, P.A..

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

National Provider Identifier

1477870459

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name John Paul Kowalczyk
Credential M.D.
Sex Male
Practice address 4495 Military Trl, Suite 204, Jupiter, FL, 33458
Fax (561) 296-5566
Enumeration date Apr 29, 2010
Last updated in NPPES Mar 30, 2021

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License ME118694 (FL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 does John Kowalczyk practice?
The practice location on file with NPPES is in Jupiter, FL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Kowalczyk?
The National Provider Identifier (NPI) for John Kowalczyk is 1477870459, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-30.