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Active NPI 1912529629 Individual Practitioner Male Practitioner

Derek Scott Hammer , PA

Physician Assistant • Topeka, KS

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Derek Hammer, PA is a certified Physician Assistant practicing in Topeka, KS. With approximately 6 years of clinical experience since completing medical education in 2020, Derek Hammer delivers high-quality medical care to the local community at 2660 SW 3RD ST.

Derek Hammer is affiliated with Cotton-O'Neil Clinic Revocable Trust and accepts Medicare assignment.

Frequently performed procedures and clinical services include injection, triamcinolone acetonide, not otherwise specified, 10 mg, injection, lidocaine hydrochloride, 1 mg, aspiration and/or injection of fluid from large joint. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

2660 Sw 3rd St

Topeka, KS 666062442

Telephone 7852708880

Medicare Profile & Education

Medical School

Other

Graduation Year

2020

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Topeka, KS

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
6 Yrs -5.7 yrs vs City Avg
City Avg: 11.7 Yrs
State Avg: 14.0 Yrs
Regional Practice Density
105 Specialists

Practicing in Topeka, KS (1349 Statewide)

Telehealth Adoption Rate
13.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
77.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Hammer (6 Years) 6 Yrs
Topeka Specialty Average (11.7 Years) 11.7 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg
734 97 $6.25 $0.96
J2003 Injection, lidocaine hydrochloride, 1 mg
575 20 $1.00 $0.17
20610 Aspiration and/or injection of fluid from large joint
193 110 $215.89 $56.19
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose
78 24 $355.41 $118.57
99213 Established patient office or other outpatient visit, typically 15 minutes
78 66 $130.18 $70.66
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
59 53 $77.45 $44.01
73030 X-ray of shoulder, minimum of 2 views
34 30 $63.25 $23.02
73562 X-ray of knee, 3 views
31 26 $76.75 $28.36
27447 Replacement of knee joint, both sides of knee
28 28 $1465.75 $157.02
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
21 21 $191.66 $100.63
77073 Imaging for bone length assessment
19 19 $52.75 $28.52
73502 X-ray of hip, 2-3 views
12 12 $92.25 $32.50
29827 Repair of shoulder rotator cuff using an endoscope
11 11 $736.75 $131.72

Medical Specialties & State Licenses

CMS Verified: 2025-09-04
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License KS 15-02390

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Physician Assistant

NUCC Taxonomy Code: 363A00000X

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Hospital & Practice Group Affiliations

Cotton-O'neil Clinic Revocable Trust

901 Sw Garfield Ave, Topeka, KS 666061670

Phone: 7853549591

Cotton-O'neil Clinic Revocable Trust

1500 Sw 10h Ave, Topeka, KS 666041301

Phone: 7853546000

Cotton-O'neil Clinic Revocable Trust

2601 Sw 3rd St, Topeka, KS 666062438

Phone: 7852704630

Secondary Practice Locations

1500 Sw 10th Ave

Topeka, KS 666041301

Phone: 7853546000

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Matthew Williams , PA-C

Physician Assistant

NPI 1003195009

Physician Assistant (Certified)

Dr. Michael Smith , MD

Orthopaedic Surgery

NPI 1013993955

Doctor of Medicine (M.D.)

Corbin Horak , APRN

Nurse Practitioner

NPI 1023947546

Advanced Practice Registered Nurse

Dr. Morgan Birrell , MD

Internal Medicine - Sports Medicine

NPI 1043830870

Doctor of Medicine (M.D.)

Michael Flynn , ATC, LAT

Specialist/Technologist - Athletic Trainer

NPI 1093120693

Certified Athletic Trainer, Licensed Athletic Trainer

Ronald Mcewen , PA-C

Physician Assistant

NPI 1093791931

Physician Assistant (Certified)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

14 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 04, 2025

Physician Assistant (License #15-02390 in KS)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 06, 2024

Physician Assistant

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 15, 2023

Physician Assistant (License #15-02390 in KS)

📍
Updated Business Mailing Address November 09, 2021

Registered at 2660 SW 3RD ST, TOPEKA, KS 666062442 (Tel: 7852708880)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 09, 2021

Physician Assistant

📍
Updated Practice Location October 14, 2020

Registered at 2660 SW 3RD ST, TOPEKA, KS 666062442 (Tel: 7852708880)

📍
Updated Business Mailing Address October 14, 2020

Registered at 1500 SW 10TH AVE, MEDICAL STAFF SERVICES, TOPEKA, KS 666041301 (Tel: 7853546241)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 14, 2020

Physician Assistant (License #15-02390 in KS)

NPI Profile Active May 15, 2020

NPI status registered as active in NPPES database

📍
Updated Practice Location May 15, 2020

Registered at 116 NAVARRE ST, ROSSVILLE, KS 665339647 (Tel: 7858171647)

📍
Updated Business Mailing Address May 15, 2020

Registered at 116 NAVARRE ST, ROSSVILLE, KS 665339647 (Tel: 7858171647)

👤
Provider Name / Credentials Updated May 15, 2020

Recorded as DEREK HAMMER, PA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 15, 2020

Physician Assistant

🟢
Initial NPI Registration & Enumeration May 15, 2020

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1912529629
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 15, 2020
Last Update: September 04, 2025
Sole Proprietor: No

Mailing Address

2660 Sw 3rd St

Topeka, KS 666062442

Phone: 7852708880

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.