Olivia M. Niepsuj, PA-C
Physician Assistant · Lake Forest, IL
Olivia M. Niepsuj, PA-C is a physician assistant with a practice address in Lake Forest, Illinois, and NPI 1245887256, issued on Aug 23, 2019. Check the license (Illinois 085007686, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Olivia M. Niepsuj
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 085007686 IL
Self-reported in NPPES; status is on the state search - Practice location
- 800 N Westmoreland RD Ste 100, Lake Forest, IL 60045
- Phone
- (847) 535-7657
- Enumerated
- Aug 23, 2019
- Record last updated
- May 23, 2022
- Fax
- (847) 998-9303
- Medicare enrollment
- Enrolled (PECOS I20201012000899); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,926 in Illinois → Look up another NPI →
Also registered at 800 N Westmoreland RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Olivia M. Niepsuj in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085007686Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average physician assistant in 2024
2,310 Medicare Part D claims for 744 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 39 claims were for opioids.
Most prescribed
- Tamsulosin Hcl658 claims
- Oxybutynin Chloride Er396 claims
- Finasteride228 claims
- Myrbetriq169 claims
- Cephalexin165 claims
- Alfuzosin Hcl Er120 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 MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $16.45
1 payment: food and beverage; the largest payer was 180 Medical, Inc. 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.
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
- Northwestern Medical Faculty FoundationLake Forest, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olivia M. Niepsuj among 4,926 physician assistant records in Illinois
Olivia M. Niepsuj, PA-C is one of 4,926 physician assistant records with a practice address in Illinois. 82% 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 53% of them.
- NPI issued2019 · 53% of these records are older, 42% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2020 · median 2019 among the 3,407 with a school on file
- Record last updated2022 · 35% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
62 physician assistant records list a practice address in Lake Forest
They are 62 of the 821 NPPES records with a practice address in Lake Forest, and 4,926 physician assistant records in Illinois.
All 4,926 in Illinois → Every provider in Lake Forest → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Elizabeth Ciennik, PA-CLake Forest, IL 600451497160063
- Daniela Cvetkova, PALake Forest, IL 600451548534977
- Emily Friedman, PA-CLake Forest, IL 600451417232125
- Katherine Kovacic, PA-CLake Forest, IL 600451538386149
- Jaklyn Lynch, PA-CLake Forest, IL 600451689981029
- Kelly Muscavitch, PALake Forest, IL 600451679963821
- Jennafer Ottenheimer, PA-CLake Forest, IL 600451356753016
- Keely Pedersen, PA-CLake Forest, IL 600451619228624
Common questions
What is Olivia M. Niepsuj, PA-C's NPI number?
Olivia M. Niepsuj, PA-C's National Provider Identifier (NPI) is 1245887256, issued on Aug 23, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Olivia M. Niepsuj, PA-C located?
The NPPES record lists a practice address at 800 N Westmoreland RD Ste 100, Lake Forest, IL, 60045. Phone: (847) 535-7657. Providers update this record themselves, so call before visiting.
How can I verify Olivia M. Niepsuj, PA-C's license?
NPPES lists Illinois license number 085007686, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Olivia M. Niepsuj, PA-C prescribe under Medicare Part D?
In 2024, Olivia M. Niepsuj, PA-C had 2,310 Medicare Part D claims for 744 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Olivia M. Niepsuj, PA-C's MIPS final score?
The 2023 MIPS final score is 94.1 of 100. 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.