NPI Portal NPI Lookup & Verification

Mr. Barton Guyer, P.A.

Mr. Barton Guyer is a Physician Assistant provider (Physician Assistant) practicing in Springfield, MO, registered in the NPPES registry with NPI 1831410851 since 2010. The credential PA stands for Physician Assistant. Practices at Mercy Southern Missouri Ambulatory Services LLC (listed at the same practice address in NPPES).

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NPI 1831410851
Entity type Individual (Type 1)
Name Mr. Barton Guyer
Credential P.A.
Sex Male
Practice address 900 E BATTLEFIELD ST STE 124, Springfield, MO, 65807
Phone 4179861289
Enumeration date 2010-06-14
Last updated in NPPES 2019-07-17

Taxonomy & licenses

Taxonomy code Specialty Primary License State
363A00000X Physician Assistant Primary 2010017701 MO

PA — Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

Copy-ready billing details
Provider: Barton Guyer, P.A.
NPI: 1831410851
Taxonomy: 363A00000X (Physician Assistant)
Address: 900 E BATTLEFIELD ST STE 124, Springfield, MO, 65807

Other providers at this practice address

NPI Name Type Specialty Location
1467655506 Aleida Smith Individual Physician Assistant Springfield, MO
1720373673 Brandon Wiese Individual Family Medicine Physician Springfield, MO
1073953626 Andrew Benbow Individual Family Medicine Physician Springfield, MO
1255733895 Erin Carlile Individual Family Nurse Practitioner Springfield, MO
1609320357 Jeani Buckley Individual Family Nurse Practitioner Springfield, MO
1104371467 Christopher Wiles Individual Family Nurse Practitioner Springfield, MO
1740735844 Katie Lewis Individual Family Nurse Practitioner Springfield, MO
1558893156 Heather Bradford Individual Family Nurse Practitioner Springfield, MO

Verify this record

Cross-check NPI 1831410851 against the authoritative CMS record: view Mr. Barton Guyer on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Barton Guyer?
Barton Guyer is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2019-07-17.