Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Leslie E. Grissom, MD

Pediatric Radiology Physician in Wilmington, DE · enumerated 2006.

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

National Provider Identifier

1225120108

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Registry record

Entity type Individual (Type 1)

Name Dr. Leslie E. Grissom

Credential MD

Sex Female

Practice address 1600 Rockland Rd, Wilmington, DE, 19803

Phone (302) 651-4000

Fax (302) 651-4945

Enumeration date Sep 29, 2006

Last updated in NPPES Feb 4, 2013

Taxonomy & licenses

2085P0229X Pediatric Radiology Physician Allopathic & Osteopathic Physicians · License C10002480 (DE) 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
XPY196074	Medicaid	CA	-
1165522	Medicaid	LA	-
5166608	Medicaid	NJ	-
64195951	Medicaid	KY	-
806321200	Medicaid	ID	-
1437681	Medicaid	NY	-
7709013	Medicaid	MD	-
1197564	Medicaid	PA	-
510123	Medicaid	IA	-

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 is the NPI number for Leslie Grissom?

The National Provider Identifier (NPI) for Leslie Grissom is 1225120108, a Type 1 (individual) record in the CMS NPPES registry.

Where does Leslie Grissom practice?

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

Other providers at this practice address

Browse all →

Lee Pachter Pediatrics Physician · Wilmington, DE NPI 1306844345 Rhoda Powell Plastic and Reconstructive Surgery Physician · Wilmington, DE NPI 1669460531 Sue Moyer Harasink Genetic Counselor (M.S.) · Wilmington, DE NPI 1679562177 Leonard Goldsmith Neonatal-Perinatal Medicine Physician · Wilmington, DE NPI 1538159439 Jane Ierardi Neonatal-Perinatal Medicine Physician · Wilmington, DE NPI 1720078504 Daniel Dirnberger Neonatal-Perinatal Medicine Physician · Wilmington, DE NPI 1467435438 Margaret Chou Obstetrics & Gynecology Physician · Wilmington, DE NPI 1902880651 Lauren Gilbert Physician Assistant · Wilmington, DE NPI 1336128347

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-04.