Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory W Brabbee, M.D.

Specialist in Saint Louis, MO · enumerated 2005.

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

National Provider Identifier

1538156831

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory W Brabbee

Credential M.D.

Sex Male

Practice address 621 S New Ballas Rd, Suite 7011b, Saint Louis, MO, 63141

Phone (314) 251-6840

Fax (314) 251-7249

Enumeration date Oct 2, 2005

Last updated in NPPES Oct 19, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License R7E91 Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Gregory Brabbee practice?

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

What is the NPI number for Gregory Brabbee?

The National Provider Identifier (NPI) for Gregory Brabbee is 1538156831, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-19.