Kathryn Hamer, PA-S
NPI 1003444308 · Physician Assistant · Winchester, VA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathryn Hamer, PA-S is a Physician Assistant provider in Winchester, VA (NPI 1003444308).
Provider details
- NPI number
- 1003444308
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-S
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0110007998 (VA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
379 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 85 | $127 |
| Automated Urinalysis Test81003 | 40 | $2 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 38 | $165 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 29 | $110 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 29 | $91 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 20 | 20 |
| Cefdinir | 16 | 15 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (4)
- 415a South StFront Royal, VA 22630-2115Phone: (540) 636-0495
- 65 Riverton Commons DrFront Royal, VA 22630-6768Phone: (540) 635-0700
- 33820 Old Valley Pike Ste 2Strasburg, VA 22657-3793Phone: (540) 459-1310
- 160 Merchant St # 200Winchester, VA 22603-4772Phone: (540) 536-5950
Registry dates
- Enumerated
- 2020-03-31
- Last updated
- 2021-09-09
- Certified
- 2021-09-09
Frequently asked questions
- What is Kathryn Hamer's NPI number?
- Kathryn Hamer's National Provider Identifier (NPI) is 1003444308, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathryn Hamer's specialty?
- Kathryn Hamer is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Kathryn Hamer located?
- Kathryn Hamer's practice location on file with NPPES is 607 E Jubal Early Dr, Winchester, VA 22601-5178.
- What is Kathryn Hamer's phone number?
- The practice phone number listed in the NPPES registry for Kathryn Hamer is (540) 536-5100.
- Does Kathryn Hamer accept Medicare?
- Kathryn Hamer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathryn Hamer's NPI active?
- Yes — Kathryn Hamer's NPI (1003444308) is active in the NPPES registry as of the last update on 2021-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.