Austin Southmayd, PA-C MLS
NPI 1275240152 · Physician Assistant · Saint Louis, MO
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Austin Southmayd, PA-C MLS is a Physician Assistant provider in Saint Louis, MO (NPI 1275240152).
Provider details
- NPI number
- 1275240152
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C MLS
- Sex
- Male
- Sole proprietor
- No
- License
- 2022043266 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-11-01
- Last updated
- 2022-11-01
- Certified
- 2022-11-01
Frequently asked questions
- What is Austin Southmayd's NPI number?
- Austin Southmayd's National Provider Identifier (NPI) is 1275240152, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Austin Southmayd's specialty?
- Austin Southmayd is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Austin Southmayd located?
- Austin Southmayd's practice location on file with NPPES is 615 S New Ballas Rd, Saint Louis, MO 63141-8221.
- What is Austin Southmayd's phone number?
- The practice phone number listed in the NPPES registry for Austin Southmayd is (314) 251-6000.
- Does Austin Southmayd accept Medicare?
- Austin Southmayd is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Austin Southmayd's NPI active?
- Yes — Austin Southmayd's NPI (1275240152) is active in the NPPES registry as of the last update on 2022-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.