Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Walter Szczupak, M.D.

Pulmonary Disease Physician in Hauppauge, NY · enumerated 2006.

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

National Provider Identifier

1518061050

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Registry record

Entity type Individual (Type 1)

Name Dr. Walter Szczupak

Credential M.D.

Sex Male

Practice address 1345 Motor Pkwy Fl 1, Hauppauge, NY, 11749

Phone (631) 855-1201

Fax (631) 630-6299

Enumeration date Sep 12, 2006

Last updated in NPPES Sep 25, 2015

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 147105 (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
00925993	Medicaid	NY	-
37D62EC831	Other	NY	MEDICARE OTHER PIN
A300022655	Other	-	MEDICARE PTAN

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

What specialty is Walter Szczupak?

Walter Szczupak is registered in NPPES with the primary taxonomy of Pulmonary Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Deborah Ramos Clinical Social Worker · Islandia, NY NPI 1407157258 Ingrid Cantave Internal Medicine Physician · Hauppauge, NY NPI 1154613321 Emily Moss Surgical Physician Assistant · Islandia, NY NPI 1619640943

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-25.