Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark J Decker, MD

Diagnostic Radiology Physician in Lindenhurst, NY · enumerated 2005.

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

National Provider Identifier

1023002862

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mark J Decker

Credential MD

Sex Male

Practice address 150 E Sunrise Hwy, 208, Lindenhurst, NY, 11757

Phone (631) 225-7200

Fax (631) 930-9451

Enumeration date Sep 8, 2005

Last updated in NPPES Apr 4, 2011

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 206944 (NY) 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
TRICARE NORTH	Other	-	059587550
0521AA	Other	NY	GHI MEDICARE
01856591	Medicaid	NY	-

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 Mark Decker's NPI record?

Cross-check NPI 1023002862 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1023002862 active?

Yes, as of the latest NPPES snapshot, NPI 1023002862 is active (record last updated 2011-04-04).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-04.