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

Derek Scott Hammer, PA

Individual provider Physician Assistant · NPI 1912529629

Derek Scott Hammer, PA is a Physician Assistant in Topeka, Kansas. Qualified in 2020, 6 years ago. Practices with Cotton-O'Neil Clinic Revocable Trust, a 658-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Kansas.

Years since qualifying
6
Licensed in
KS
In the registry since
2020
Specialties on file
2
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

2660 SW 3rd St
Topeka, KS 66606-2442
Phone: (785) 270-8880
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1500 Sw 10th Ave, Topeka, KS 66604-1301 — (785) 354-6000

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 15-02390 (KS)
Physician Assistant Taxonomy 363A00000X

Record details

NPI number1912529629
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedMay 15, 2020
Last updated in NPPESSeptember 4, 2025
Certification dateSeptember 4, 2025
Mailing address2660 Sw 3rd St, Topeka, KS 66606-2442

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Cotton-O'Neil Clinic Revocable Trust — 658 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Topeka