Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Louis E. Bartoshesky, MD

Clinical Genetics (M.D.) Physician in Wilmington, DE · enumerated 2006.

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

National Provider Identifier

1104917483

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Registry record

Entity type Individual (Type 1)

Name Dr. Louis E. Bartoshesky

Credential MD

Sex Male

Practice address A.I. Dupont Hospital for Children, 1600 Rockland Road, Wilmington, DE, 19803

Phone (302) 651-4000

Fax (302) 651-4945

Enumeration date Sep 28, 2006

Last updated in NPPES Sep 3, 2011

Taxonomy & licenses

207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians · License C10002824 (DE) Primary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License C10002824 (DE) Secondary

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
116514	Medicaid	LA	-
4429720	Medicaid	DC	-
7456107	Medicaid	MD	-
7159404	Medicaid	NJ	-
001072069	Medicaid	PA	-
Q02824	Medicaid	SC	-
02093763	Medicaid	NY	-
6734588	Medicaid	VA	-

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 Louis Bartoshesky practice?

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

What is the NPI number for Louis Bartoshesky?

The National Provider Identifier (NPI) for Louis Bartoshesky is 1104917483, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-03.