NPPES file of Aug 9, 2026

Jessica Leigh Tomasiewicz, NP

Nurse Practitioner · Elgin, IL

Jessica Leigh Tomasiewicz, NP is a nurse practitioner with a practice address in Elgin, Illinois, and NPI 1841516614, issued on Apr 19, 2010. Check the license (Illinois 209008119, as entered in NPPES) with the Illinois 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
1841516614
Name
Jessica Leigh Tomasiewicz
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
209008119 IL
209.008119 IL
Self-reported in NPPES; status is on the state search
Practice location
745 Fletcher Dr Ste 101-102, Elgin, IL 60123
Phone
(847) 742-0792
Enumerated
Apr 19, 2010
Record last updated
Jul 12, 2023
Fax
(847) 742-3585
Medicaid ID
209008119 IL
Medicare enrollment
Enrolled (PECOS I20100518000031); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 745 Fletcher Dr Ste 101-102

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

  1. Dennis Flynn, M.D.Internal Medicine Physician1295704435
  2. Mariya Rampurwala, MDInternal Medicine Physician1215197785
  3. Ilma Vahora, MDInternal Medicine Physician1073194031
  4. Alan Wurzelbacher, M.D.Internal Medicine Physician1457573347

Verify Jessica Leigh Tomasiewicz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 209008119
    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 Illinois 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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5.4 times the Medicare Part D claims of the average nurse practitioner in 2024

6,017 Medicare Part D claims for 459 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 67 claims were for opioids.

  1. Jessica Tomasiewicz6,017
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium445 claims
  2. Levothyroxine Sodium387 claims
  3. Amlodipine Besylate276 claims
  4. Rosuvastatin Calcium219 claims
  5. Losartan Potassium218 claims
  6. Lisinopril192 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: $620.36

29 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jessica Tomasiewicz$620.36
  2. Specialty average$791.64

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. Dupage Medical Group LtdSchaumburg, IL

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

Jessica Leigh Tomasiewicz among 4,892 nurse practitioner records in Illinois

Jessica Leigh Tomasiewicz, NP is one of 4,892 nurse practitioner records with a practice address in Illinois. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 18% of them.

  • NPI issued2010 · 18% of these records are older, 80% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2009 · median 2018 among the 3,389 with a school on file
  • Record last updated2023 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

41 nurse practitioner records list a practice address in Elgin

They are 41 of the 2,268 NPPES records with a practice address in Elgin, and 4,892 nurse practitioner records in Illinois.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Rose Ampadu, N.P.Elgin, IL 601231366997561
  2. Shara Ann Brankin, APN-CNPElgin, IL 601231154792406
  3. Jerry Chan, FNP-BCElgin, IL 601231982928404
  4. Nicole Davis, APNElgin, IL 601231851777619
  5. Stephanie Nagarwalla, FNPElgin, IL 601231104329036
  6. Amanda Palermo, FNP-CElgin, IL 601231609398973
  7. Tina Perry, APRNElgin, IL 601231881171197
  8. Emily Pfeiffer, ANPElgin, IL 601231932504149

Common questions

What is Jessica Leigh Tomasiewicz, NP's NPI number?

Jessica Leigh Tomasiewicz, NP's National Provider Identifier (NPI) is 1841516614, issued on Apr 19, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Jessica Leigh Tomasiewicz, NP located?

The NPPES record lists a practice address at 745 Fletcher Dr Ste 101-102, Elgin, IL, 60123. Phone: (847) 742-0792. Providers update this record themselves, so call before visiting.

How can I verify Jessica Leigh Tomasiewicz, NP's license?

NPPES lists Illinois license number 209008119, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Jessica Leigh Tomasiewicz, NP prescribe under Medicare Part D?

In 2024, Jessica Leigh Tomasiewicz, NP had 6,017 Medicare Part D claims for 459 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.