Kristin M. Williamson, RPA-C
Surgical Physician Assistant · Williamsville, NY
Kristin M. Williamson, RPA-C is a surgical physician assistant with a practice address in Williamsville, New York, and NPI 1528023694, issued on Apr 20, 2006. Check the license (New York 009406-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kristin M. Williamson
- Credential
- RPA-C
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License number
- 009406-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 400 International Dr, Williamsville, NY 14221
- Phone
- (716) 631-3555
- Enumerated
- Apr 20, 2006
- Record last updated
- Jun 5, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (716) 631-9525
- Medicare enrollment
- Enrolled (PECOS I20091030000093); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 400 International Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara AdermanMassage Therapist1417233065
- Julian Ambrus, MDAllergy & Immunology (Internal Medicine) Physician1811919988
- Mark Anderson, PTPhysical Therapist1477700466
- Jessica Bennett, MS, RDRegistered Dietitian1548718646
- Gina Boldt, L.M.TMassage Therapist1942598107
- Nora BrowningFamily Nurse Practitioner1760370118
Verify Kristin M. Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 009406-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9.4 times the Medicare Part D claims of the average surgical physician assistant in 2024
2,847 Medicare Part D claims for 605 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 1,719 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen579 claims
- Gabapentin274 claims
- Oxycodone-Acetaminophen267 claims
- Oxycodone Hcl264 claims
- Baclofen153 claims
- Pregabalin126 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 MIPS final score for 2023 (Medicare payment program): 77.3 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).
Industry payments in 2024: $19.38
1 payment: food and beverage; the largest payer was Collegium Pharmaceutical, Inc. The 7,578 providers of this specialty with any payment received $703.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Brain And Spine Medical Services PLLCBuffalo, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Surgical Physician Assistant providers in New York
There are 2,152 surgical physician assistant records in New York.
Other surgical physician assistant records in New York
- Katrina Abdalla, PAUtica, NY1669722500
- Bahgat Abdelaziz, P.A.Auburn, NY1356394761
- Nasir Abdul-Wadud, PASyracuse, NY1033357371
- Ismail Abdul-Wahid, PA-CBrooklyn, NY1124656350
- Anat Abeckaser, PABrooklyn, NY1265608202
- Faiz AbedStaten Island, NY1053933143
- Ellina Abkin, PA-CBrooklyn, NY1134386717
- Fayrose Abodeshisha, RPA-CNew York, NY1245482413
- Richard Abraham, PA-CEast Setauket, NY1912013046
- Tracy Abraham, PABronx, NY1124241872
Common questions
What is Kristin M. Williamson, RPA-C's NPI number?
Kristin M. Williamson, RPA-C's National Provider Identifier (NPI) is 1528023694, issued on Apr 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kristin M. Williamson, RPA-C located?
The NPPES record lists a practice address at 400 International Dr, Williamsville, NY, 14221. Phone: (716) 631-3555. Providers update this record themselves, so call before visiting.
How can I verify Kristin M. Williamson, RPA-C's license?
NPPES lists New York license number 009406-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Kristin M. Williamson, RPA-C prescribe under Medicare Part D?
In 2024, Kristin M. Williamson, RPA-C had 2,847 Medicare Part D claims for 605 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.
What is Kristin M. Williamson, RPA-C's MIPS final score?
The 2023 MIPS final score is 77.3 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), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.