Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Tomasz Adam Gruczynski, M.D.

Pediatrics Physician in Wayne, NJ · enumerated 2006.

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

National Provider Identifier

1497707087

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Registry record

Entity type Individual (Type 1)

Name Dr. Tomasz Adam Gruczynski

Credential M.D.

Sex Male

Practice address 508 Hamburg Tpke, Wayne, NJ, 07470

Phone (973) 942-7800

Enumeration date May 16, 2006

Last updated in NPPES Sep 17, 2025

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MA059789 (NJ) 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
9044400	Medicaid	NJ	-

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 Tomasz Gruczynski practice?

The practice location on file with NPPES is in Wayne, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Tomasz Gruczynski?

The National Provider Identifier (NPI) for Tomasz Gruczynski is 1497707087, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-17.