Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gretchen Gibson Castleman, DDS, MPH

General Practice Dentistry in Joplin, MO · enumerated 2006.

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

National Provider Identifier

1487675906

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Registry record

Entity type Individual (Type 1)

Name Dr. Gretchen Gibson Castleman

Credential DDS, MPH

Sex Female

Practice address 2901 Saint Johns Blvd, Joplin, MO, 64804

Phone (417) 208-0711

Enumeration date Jul 21, 2006

Last updated in NPPES Aug 2, 2023

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 2023004757 (MO) Primary

122300000X Dentist Dental Providers · License 2927 (AR) Secondary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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 Gretchen Castleman?

The National Provider Identifier (NPI) for Gretchen Castleman is 1487675906, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gretchen Castleman practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-02.