Nancy Guerrisky
Physician Assistant · Williamsport, PA
Nancy Guerrisky is a physician assistant with a practice address in Williamsport, Pennsylvania, and NPI 1093761728, issued on May 25, 2006. Check the license (Pennsylvania OA002064, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nancy Guerrisky
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- OA002064 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1205 Grampian Blvd, Williamsport, PA 17701
- Phone
- (570) 320-7800
- Enumerated
- May 25, 2006
- Record last updated
- May 24, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20031203000538); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 8,020 in Pennsylvania → Look up another NPI →
Also registered at 1205 Grampian Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Malcolm Eldredge, LCSWClinical Social Worker1790120921
- Debra Gramley, PA-CMedical Physician Assistant1932353802
Verify Nancy Guerrisky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license OA002064Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average physician assistant in 2024
813 Medicare Part D claims for 183 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 18 claims were for opioids.
Most prescribed
- Atorvastatin Calcium63 claims
- Levothyroxine Sodium56 claims
- Fluticasone Propionate32 claims
- Lorazepam31 claims
- Amoxicillin-Clavulanate Potass27 claims
- Omeprazole25 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): 81.5 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).
Bills Medicare through one group practice
- Susquehanna Physician ServicesWilliamsport, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nancy Guerrisky among 8,020 physician assistant records in Pennsylvania
Nancy Guerrisky is one of 8,020 physician assistant records with a practice address in Pennsylvania. 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 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 85% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1998 · median 2018 among the 5,313 with a school on file
- Record last updated2021 · 42% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
137 physician assistant records list a practice address in Williamsport
They are 137 of the 1,371 NPPES records with a practice address in Williamsport, and 8,020 physician assistant records in Pennsylvania.
All 8,020 in Pennsylvania → Every provider in Williamsport → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Sheryl BakerWilliamsport, PA 177011952370033
- Bruce Body, PA-CWilliamsport, PA 177011467430942
- Jennifer Bressler, PA-CWilliamsport, PA 177011861487886
- Wayne Butler, PA-CWilliamsport, PA 177011205801107
- Richard Davies, PA-CWilliamsport, PA 177011316913494
- Kelly FarrellWilliamsport, PA 177011285602722
- Charles Haney, PA-CWilliamsport, PA 177011619946498
- Helen Hiserman, PA-CWilliamsport, PA 177011225025505
Common questions
What is Nancy Guerrisky's NPI number?
Nancy Guerrisky's National Provider Identifier (NPI) is 1093761728, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nancy Guerrisky located?
The NPPES record lists a practice address at 1205 Grampian Blvd, Williamsport, PA, 17701. Phone: (570) 320-7800. Providers update this record themselves, so call before visiting.
How can I verify Nancy Guerrisky's license?
NPPES lists Pennsylvania license number OA002064, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Nancy Guerrisky prescribe under Medicare Part D?
In 2024, Nancy Guerrisky had 813 Medicare Part D claims for 183 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Nancy Guerrisky's MIPS final score?
The 2023 MIPS final score is 81.5 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.