Kathryn Hamer, PA-S
Physician Assistant · Winchester, VA
Kathryn Hamer, PA-S is a physician assistant with a practice address in Winchester, Virginia, and NPI 1003444308, issued on Mar 31, 2020. Check the license with the Virginia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathryn Hamer
- Credential
- PA-S
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 607 E Jubal Early Dr, Winchester, VA 22601
- Phone
- (540) 536-5100
- Enumerated
- Mar 31, 2020
- Entity
- Type 1 · individual
Also registered at 607 E Jubal Early Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathryn Hamer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Virginia board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
79% fewer Medicare Part D claims than the average physician assistant in 2024
175 Medicare Part D claims for 138 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass20 claims
- Cefdinir16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's Medicare quality score for 2023: 76.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital or facility affiliation
- Medstar Urgent Care LLCWheaton, MD
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
212 physician assistant records list a Winchester practice address
They are 212 of the 2,762 NPPES records with a Winchester practice address, and 4,003 physician assistant records in Virginia.
All 212 in Winchester → All 4,003 in Virginia → Every provider in Winchester →
Other physician assistant records in Virginia
- Tehreem AbbasWoodbridge, VA1083416937
- Emma AbbottRoanoke, VA1235737891
- Annalyn Abcede, PAChesapeake, VA1821479544
- Dalia Abdalla, PA-CAldie, VA1861342677
- Hamdi Abdullahi, PA-CAlexandria, VA1407620750
- Daniel Abeel, P.A.-CFort Belvoir, VA1770503070
- Elizabeth AbelBlacksburg, VA1972380152
- Rachele Abel, PA-CNorfolk, VA1871361808
- Stephen AbercrombieRoanoke, VA1700455227
- Haven Abernathy, PACharlottesville, VA1316806219
Common questions
What is Kathryn Hamer, PA-S's NPI number?
Kathryn Hamer, PA-S's National Provider Identifier (NPI) is 1003444308, issued on Mar 31, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Hamer, PA-S located?
The NPPES record lists a practice address at 607 E Jubal Early Dr, Winchester, VA, 22601. Phone: (540) 536-5100. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Hamer, PA-S's license?
Search the Virginia board that licenses this profession; the NPPES record confirms identity only.
How much does Kathryn Hamer, PA-S prescribe under Medicare Part D?
In 2024, Kathryn Hamer, PA-S had 175 Medicare Part D claims for 138 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.
What is Kathryn Hamer, PA-S's Medicare quality score?
The 2023 MIPS final score is 76.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.