Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mallory B Warren-Brothers, PA-C

Physician Assistant in Saint Robert, MO · enumerated 2023 · practices at Mercy Hospital Lebanon.

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

National Provider Identifier

1043925639

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Registry record

Entity type Individual (Type 1)

Name Mallory B Warren-Brothers

Credential PA-C

Sex Female

Practice address 608 Old Route 66, Saint Robert, MO, 65584

Phone (573) 336-5100

Enumeration date Jan 18, 2023

Last updated in NPPES Mar 31, 2023

Taxonomy & licenses

247100000X Radiologic Technologist Technologists, Technicians & Other Technical Service Providers · License 588293 (MO) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 2023011900 (MO) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Mallory Warren-Brothers practice?

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

What is the NPI number for Mallory Warren-Brothers?

The National Provider Identifier (NPI) for Mallory Warren-Brothers is 1043925639, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Jon Moore Physician Assistant · Saint Robert, MO NPI 1003805201 Ann Blackman Family Medicine Physician · Saint Robert, MO NPI 1588640510 Angela Neighbors Nurse Practitioner · Saint Robert, MO NPI 1427038686 Ann Pondrom Physical Therapist · St Robert, MO NPI 1366401150 Bryan Donnelly Physical Therapist · St Robert, MO NPI 1700931946 James Reeves Physician Assistant · Saint Robert, MO NPI 1053444323 Rhiannon Sanders Pediatrics Physician · Saint Robert, MO NPI 1225259278 Mercy Hospital Lebanon Rural Health Clinic/Center · Saint Robert, MO NPI 1912345257

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-31.