Doctor profile · Federal record

Dr. Derek Hammer, PA

Physician Assistant · Physician Assistant · Topeka, KS

  • NPI 1912529629
  • Accepts Medicare
  • 6 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2660 Sw 3Rd St
Topeka, KS 666062442
(785) 270-8880
Additional location
1500 Sw 10Th Ave
Topeka, KS 666041301
(785) 354-6000

Credentials & registration

NPPES · NUCC
NPI registered
May 2020 — 6 yrs on file
Profile last updated
September 4, 2025
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Kansas #15-02390

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1912529629. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,417
Distinct HCPCS
10
Medicare allowed
$39,632
HCPCS Description Services Patients Avg allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 871 105 $1
20610 Aspiration and/or injection of fluid from large joint 168 120 $58
99213 Established patient office or other outpatient visit, 20-29 minutes 124 108 $72
73562 X-ray of knee, 3 views 51 40 $29
J7323 Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose 50 18 $125
99214 Established patient office or other outpatient visit, 30-39 minutes 31 30 $103
27447 Replacement of knee joint, both sides of knee 29 29 $162
73502 X-ray of hip, 2-3 views 25 24 $33
73030 X-ray of shoulder, minimum of 2 views 24 23 $24
99212 Established patient office or other outpatient visit, 10-19 minutes 19 19 $45

In context: peer comparison

Among 35 peers in Topeka Physician Assistant, average services per provider: 101. This provider delivers 14× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
202
Patients
194
Total drug cost
$1,409
Drug Type Claims Patients Total cost
Gabapentin Generic 61 56 $292
Tizanidine Hcl Generic 55 52 $304
Oxycodone Hcl Generic 42 42 $412
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 25 25 $295
Cefadroxil Generic 19 19 $106

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Derek Hammer's medical specialty?
Dr. Derek Hammer practices Physician Assistant in Topeka, KS.
Where does Dr. Derek Hammer practice?
Dr. Derek Hammer practices at 2660 Sw 3Rd St, Topeka, KS 666062442. Office phone: 7852708880.
What is Dr. Derek Hammer's NPI?
Dr. Derek Hammer's National Provider Identifier (NPI) is 1912529629, issued by NPPES.
Does Dr. Derek Hammer accept Medicare assignment?
Yes. Dr. Derek Hammer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Derek Hammer commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); Aspiration and/or injection of fluid from large joint (HCPCS 20610); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.