NPPES file of Aug 9, 2026

Stephanie Guize, RPAC

Physician Assistant · West Amherst, NY

Stephanie Guize, RPAC is a physician assistant with a practice address in West Amherst, New York, and NPI 1104933886, issued on Aug 25, 2006. Check the license (New York 008773-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104933886
Name
Stephanie Guize
Credential
RPAC
Primary taxonomy
Physician Assistant 363A00000X
License number
008773-1 NY
Self-reported in NPPES; status is on the state search
Practice location
3950 E Robinson RD, West Amherst, NY 14228
Phone
(716) 564-1111
Enumerated
Aug 25, 2006
Record last updated
Dec 13, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(716) 564-1128
Medicaid ID
02334403 NY
Medicare enrollment
Enrolled (PECOS I20060308000691); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3950 E Robinson RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Inger Anderson, PNPPediatrics Physician1265460786
  2. Suzanne Aquilina, PNPPediatrics Physician1245269679
  3. Danielle Bonnevie, MDPediatrics Physician1891951497
  4. Karen Braun, PNPPediatrics Physician1275561136
  5. Danielle Casillo, AGPCNP-BCAdult Health Nurse Practitioner1164885067
  6. Maureen Dann, PNPPediatrics Physician1598793440

Verify Stephanie Guize in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 008773-1
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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5.2 times the Medicare Part D claims of the average physician assistant in 2024

4,295 Medicare Part D claims for 728 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 21 claims were for opioids.

  1. Stephanie Guize4,295
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium353 claims
  2. Rosuvastatin Calcium232 claims
  3. Levothyroxine Sodium209 claims
  4. Lisinopril172 claims
  5. Omeprazole166 claims
  6. Amlodipine Besylate129 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.

Industry payments in 2024: $1,838.99

96 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephanie Guize$1,838.99
  2. Specialty average$841.65

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

  1. Highgate Medical Group PCWilliamsville, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stephanie Guize among 15,555 physician assistant records in New York

Stephanie Guize, RPAC is one of 15,555 physician assistant records with a practice address in New York. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 87% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2002 · median 2018 among the 8,158 with a school on file
  • Record last updated2007 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 physician assistant records list a practice address in West Amherst

They are 8 of the 48 NPPES records with a practice address in West Amherst, and 15,555 physician assistant records in New York.

The 8 physician assistant records with the nearest ZIP codes

  1. Derek Aube-Marchant, RPA-CBuffalo, NY 142281972736825
  2. Nycole Brong, PAAmherst, NY 142281790765741
  3. Dawn Dolan, RPA-CAmherst, NY 142281871549048
  4. Susan Domon, PAAmherst, NY 142281003139007
  5. Brian Kron, RPA-CWest Amherst, NY 142281467605543
  6. Jillian Lamarca, RPA-CBuffalo, NY 142281891928750
  7. Emily McGowan, RPA-CAmherst, NY 142281104172287
  8. Erin Morgan, PAWest Amherst, NY 142281770900649

Common questions

What is Stephanie Guize, RPAC's NPI number?

Stephanie Guize, RPAC's National Provider Identifier (NPI) is 1104933886, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephanie Guize, RPAC located?

The NPPES record lists a practice address at 3950 E Robinson RD, West Amherst, NY, 14228. Phone: (716) 564-1111. Providers update this record themselves, so call before visiting.

How can I verify Stephanie Guize, RPAC's license?

NPPES lists New York license number 008773-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Stephanie Guize, RPAC prescribe under Medicare Part D?

In 2024, Stephanie Guize, RPAC had 4,295 Medicare Part D claims for 728 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

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.