Doctor profile · Federal record

Dr. Kathryn Hamer, PA-S

Physician Assistant · Winchester, VA

  • NPI 1003444308
  • Accepts Medicare
  • MIPS 76.3 / 100 · 2023
  • 5 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 5 locations .

NPPES Updated May 11, 2026
Primary practice
607 E Jubal Early Dr
Winchester, VA 226015178
(540) 536-5100
Additional location
160 Merchant St # 200
Winchester, VA 226034772
(540) 536-5950
Additional location
33820 Old Valley Pike Ste 2
Strasburg, VA 226573793
(540) 459-1310
Show 2 more locations
Additional location
415A South St
Front Royal, VA 226302115
(540) 636-0495
Additional location
65 Riverton Commons Dr
Front Royal, VA 226306768
(540) 635-0700
Mailing address
220 Campus Blvd Ste 100
Winchester, VA 226012896

Credentials & registration

NPPES · NUCC
NPI registered
March 2020 — 6 yrs on file
Profile last updated
September 9, 2021
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Virginia #0110007998

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1003444308. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
675
Distinct HCPCS
10
Medicare allowed
$50,356
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 127 123 $122
87804 Detection test by immunoassay with direct visual observation for influenza virus 88 45 $16
99204 New patient office or other outpatient visit, 45-59 minutes 74 74 $159
81003 Automated urinalysis test 62 58 $2
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus 60 60 $35
99213 Established patient office or other outpatient visit, 20-29 minutes 53 52 $87
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 42 42 $16
71046 X-ray of chest, 2 views 39 39 $21
99215 Established patient office or other outpatient visit, 40-54 minutes 34 34 $170
82962 Blood glucose (sugar) test performed by hand-held instrument 30 30 $3

In context: peer comparison

Among 40 peers in this city , average services per provider: 93. This provider delivers 7.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
100
Patients
99
Total drug cost
$1,316
Drug Type Claims Patients Total cost
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 36 36 $403
Cefdinir Generic 29 28 $492
Doxycycline Hyclate Generic 13 13 $210
Cephalexin Generic 11 11 $89
Erythromycin (Erythromycin Base) Brand 11 11 $121

Frequently asked questions

Auto-generated from federal data
What is Dr. Kathryn Hamer's medical specialty?
Dr. Kathryn Hamer practices Physician Assistant in Winchester, VA.
Where does Dr. Kathryn Hamer practice?
Dr. Kathryn Hamer practices at 607 E Jubal Early Dr, Winchester, VA 226015178. Office phone: 5405365100.
What is Dr. Kathryn Hamer's NPI?
Dr. Kathryn Hamer's National Provider Identifier (NPI) is 1003444308, issued by NPPES.
Does Dr. Kathryn Hamer accept Medicare assignment?
Yes. Dr. Kathryn Hamer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kathryn Hamer commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Detection test by immunoassay with direct visual observation for influenza virus (HCPCS 87804); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.