Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert K Gildersleeve

Obstetrics & Gynecology Physician in Mansfield, CT · enumerated 2006.

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

National Provider Identifier

1538114780

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Registry record

Entity type Individual (Type 1)

Name Robert K Gildersleeve

Sex Male

Practice address Mansfield Ob/Gyn Associates, 21 Ledgebrook Drive, Mansfield, CT, 06205

Phone (860) 450-7227

Fax (860) 450-7231

Enumeration date May 24, 2006

Last updated in NPPES May 23, 2012

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 037976 (CT) Primary

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

What is the NPI number for Robert Gildersleeve?

The National Provider Identifier (NPI) for Robert Gildersleeve is 1538114780, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Gildersleeve practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-23.