Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Steven Michael Twidwell, PA

Individual provider Physician Assistant · NPI 1215526785

Mr. Steven Michael Twidwell, PA is a Physician Assistant in Saint Louis, Missouri. Qualified in 2021, 5 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
5
Licensed in
MO
In the registry since
2021
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

510 S Kingshighway Blvd Dept Radiology
Saint Louis, MO 63110-1016
Phone: (314) 362-7200
Fax: (314) 747-4189
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 2022004609 (MO)

Record details

NPI number1215526785
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedJanuary 11, 2021
Last updated in NPPESApril 17, 2025
Certification dateMarch 11, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations15 on file with Medicare

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