John J. Slisz, PA
Medical Physician Assistant · Orchard Park, NY
John J. Slisz, PA is a medical physician assistant with a practice address in Orchard Park, New York, and NPI 1669939849, issued on Feb 25, 2019. Check the license (New York 023312, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John J. Slisz
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 023312 NY
Self-reported in NPPES; status is on the state search - Practice location
- 5959 Big Tree RD Ste 102, Orchard Park, NY 14127
- Phone
- (716) 308-9640
- Enumerated
- Feb 25, 2019
- Record last updated
- Feb 17, 2024
- Fax
- (862) 212-1997
- Medicare enrollment
- Enrolled (PECOS I20190326001000); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,670 in New York → Look up another NPI →
Also registered at 5959 Big Tree RD Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John J. Slisz 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 023312Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% more Medicare Part D claims than the average medical physician assistant in 2024
2,272 Medicare Part D claims for 183 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 330 claims were for opioids.
Most prescribed
- Gabapentin138 claims
- Famotidine126 claims
- Venlafaxine Hcl Er104 claims
- Furosemide97 claims
- Lorazepam85 claims
- Amlodipine Besylate84 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: $334.57
4 payments; by number, the most common kind was food and beverage; the largest payer was Acadia Pharmaceuticals Inc. The 16,165 providers of this specialty with any payment received $1,055.00 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
- Maine Medical Consultants PCBuffalo, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John J. Slisz among 3,670 medical physician assistant records in New York
John J. Slisz, PA is one of 3,670 medical physician assistant records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 75% of them.
- NPI issued2019 · 75% of these records are older, 20% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated2018 · median 2014 among the 1,802 with a school on file
- Record last updated2024 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 medical physician assistant records list a practice address in Orchard Park
They are 25 of the 1,404 NPPES records with a practice address in Orchard Park, and 3,670 medical physician assistant records in New York.
All 3,670 in New York → Every provider in Orchard Park → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Lisa Domagala, RPA-COrchard Park, NY 141271083726251
- Samantha Gomolka, PAOrchard Park, NY 141271619307121
- Liane Kirchberger, PAOrchard Park, NY 141271164478954
- Anne Kromer, RPA-COrchard Park, NY 141271851341093
- Andrew Muff, PA-COrchard Park, NY 141271225362551
- Susan Patronik, PAOrchard Park, NY 141271245400126
- Vanessa Piazza, PAOrchard Park, NY 141271457775561
- Stephen Reinhart, PAOrchard Park, NY 141271750339693
Common questions
What is John J. Slisz, PA's NPI number?
John J. Slisz, PA's National Provider Identifier (NPI) is 1669939849, issued on Feb 25, 2019. An NPI identifies a provider in billing; it is not a license.
Where is John J. Slisz, PA located?
The NPPES record lists a practice address at 5959 Big Tree RD Ste 102, Orchard Park, NY, 14127. Phone: (716) 308-9640. Providers update this record themselves, so call before visiting.
How can I verify John J. Slisz, PA's license?
NPPES lists New York license number 023312, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does John J. Slisz, PA prescribe under Medicare Part D?
In 2024, John J. Slisz, PA had 2,272 Medicare Part D claims for 183 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.