Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stacy J Castaldi, DO

Diagnostic Radiology Physician in Harrisburg, PA · enumerated 2005.

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

National Provider Identifier

1598758088

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Registry record

Entity type Individual (Type 1)

Name Stacy J Castaldi

Credential DO

Sex Male

Practice address 4518 Union Deposit Rd, Harrisburg, PA, 17111

Phone (717) 652-5840

Fax (717) 652-8152

Enumeration date Aug 30, 2005

Last updated in NPPES Sep 11, 2013

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 05010639L (PA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
0017869010018	Medicaid	PA	-
0017869010013	Medicaid	PA	-
0017869010017	Medicaid	PA	-
0017869010002	Medicaid	PA	-
0017869010001	Medicaid	PA	-
300108685	Other	PA	RAILROAD MEDICARE

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 Stacy Castaldi's NPI record?

Cross-check NPI 1598758088 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1598758088 active?

Yes, as of the latest NPPES snapshot, NPI 1598758088 is active (record last updated 2013-09-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-09-11.