Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Kristine B Diehl, MD

Family Medicine Physician in Wilmington, DE · enumerated 2005.

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

National Provider Identifier

1245213933

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Registry record

Entity type Individual (Type 1)

Name Dr. Kristine B Diehl

Credential MD

Sex Female

Practice address 2700 Silverside Rd, Ste 2, Wilmington, DE, 19810

Phone (302) 478-8421

Fax (302) 478-8422

Enumeration date Nov 28, 2005

Last updated in NPPES May 18, 2021

Taxonomy & licenses

173000000X Legal Medicine Other Service Providers · License C10004693 (DE) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License C1-0004693 (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
510374122	Other	DE	ALL OTHER INSURANCE CO

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 Kristine Diehl 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 Kristine Diehl?

The National Provider Identifier (NPI) for Kristine Diehl is 1245213933, 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 2021-05-18.