Ross Louis Guarino, RPAC
Surgical Physician Assistant · Williamsville, NY
Ross Louis Guarino, RPAC is a surgical physician assistant with a practice address in Williamsville, New York, and NPI 1487703898, issued on Jan 9, 2007. Check the license (New York 004793-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ross Louis Guarino
- Credential
- RPAC
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License numbers
- 004793-1 NY
004793 NY
Self-reported in NPPES; status is on the state search - Practice location
- 400 International Dr, Williamsville, NY 14221
- Phone
- (716) 631-3555
- Enumerated
- Jan 9, 2007
- Record last updated
- Aug 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080331000347); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 2,152 in New York → Look up another NPI →
Also registered at 400 International Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mark Anderson, PTPhysical Therapist1477700466
- Jessica Bennett, MS, RDRegistered Dietitian1548718646
- Gina Boldt, L.M.TMassage Therapist1942598107
- Nora BrowningFamily Nurse Practitioner1760370118
Verify Ross Louis Guarino 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 004793-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11.0 times the Medicare Part D claims of the average surgical physician assistant in 2024
3,351 Medicare Part D claims for 446 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 2,360 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen643 claims
- Tramadol Hcl374 claims
- Gabapentin345 claims
- Oxycodone-Acetaminophen238 claims
- Oxycodone Hcl186 claims
- Buprenorphine153 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: $1,801.30
81 payments; by number, the most common kind was food and beverage; the largest payer was Curonix LLC. 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).
Ross Louis Guarino among 2,152 surgical physician assistant records in New York
Ross Louis Guarino, RPAC is one of 2,152 surgical physician assistant records with a practice address in New York. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 21% of them.
- NPI issued2007 · 21% of these records are older, 66% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1993 · median 2012 among the 1,293 with a school on file
- Record last updated2019 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Physician Assistant providers in New York
There are 2,152 surgical physician assistant records in New York.
All 2,152 in New York → Every provider in Williamsville → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Stacy Heiler, PACWilliamsville, NY 142211841211869
- Kathryn Knisely, PAWilliamsville, NY 142211669484440
- Brian Laplante, PA-CWilliamsville, NY 142211740266139
- Melanie Marien, RPA CWilliamsville, NY 142211851377154
- Sarah Martineck, RPACWilliamsville, NY 142211902863764
- Brian May, RPA CWilliamsville, NY 142211134105422
- Marc McCabe, RPA-CWilliamsville, NY 142211134121296
- Penelope McClurg, PHYSICIAN ASSISTANTWilliamsville, NY 142211144201476
Common questions
What is Ross Louis Guarino, RPAC's NPI number?
Ross Louis Guarino, RPAC's National Provider Identifier (NPI) is 1487703898, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ross Louis Guarino, RPAC 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 Ross Louis Guarino, RPAC's license?
NPPES lists New York license number 004793-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Ross Louis Guarino, RPAC prescribe under Medicare Part D?
In 2024, Ross Louis Guarino, RPAC had 3,351 Medicare Part D claims for 446 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.
What is Ross Louis Guarino, RPAC'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.