NPPES file of Aug 9, 2026

Therese E. Nash, PA-C

Medical Physician Assistant · Warrenville, IL

Therese E. Nash, PA-C is a medical physician assistant with a practice address in Warrenville, Illinois, and NPI 1437295250, issued on Jan 29, 2007. Check the license (Illinois 085002733, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1437295250
Name
Therese E. Nash
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
085002733 IL
Self-reported in NPPES; status is on the state search
Practice location
4405 Weaver Pkwy, Warrenville, IL 60555
Phone
(630) 352-5450
Enumerated
Jan 29, 2007
Record last updated
Mar 7, 2023
Fax
(630) 352-5499
Medicare enrollment
Enrolled (PECOS I20070914000629); 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 4405 Weaver Pkwy

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

  1. John Abad, M.D.Surgical Oncology Physician1578722336
  2. Raanan Alter, MDGynecologic Oncology Physician1558789826
  3. John Ayers, MDHematology & Oncology Physician1477540821
  4. Madeline BiceNurse Practitioner1982189221
  5. Mackenzie Blackburn, APRN, CNPNurse Practitioner1740005511
  6. Robin Buerki, MDNeurology Physician1881936326

Verify Therese E. Nash 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 085002733
    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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34% fewer Medicare Part D claims than the average medical physician assistant in 2024

756 Medicare Part D claims for 218 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 22 claims were for opioids.

  1. Therese Nash756
  2. Specialty average1,148

Most prescribed

  1. Abiraterone Acetate58 claims
  2. Prednisone53 claims
  3. Hydroxyurea44 claims
  4. Eliquis36 claims
  5. Warfarin Sodium32 claims
  6. Omeprazole31 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.

  1. Qualityout of 100 · 30% of the final score82.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Northwestern Medical Faculty FoundationOak Brook, IL

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

Therese E. Nash among 671 medical physician assistant records in Illinois

Therese E. Nash, PA-C is one of 671 medical physician assistant records with a practice address in Illinois. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 29% of them.

  • NPI issued2007 · 29% of these records are older, 59% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated2006 · median 2012 among the 340 with a school on file
  • Record last updated2023 · 62% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in Illinois

There are 671 medical physician assistant records in Illinois.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Matthew Barnes, P.A.Warrenville, IL 605551871742239
  2. Jenna Bhatt, PA-CWestmont, IL 605591255005351
  3. Olga McCain, PA-CNaperville, IL 605631467780189
  4. Kevin Riggs, PA-C, MPASNaperville, IL 605631609848282
  5. Amanda Boo, P.A.Riverside, IL 605461558813907
  6. Jennifer Bren, PA-CNaperville, IL 605641003211160
  7. Tiffany Delane, PA-CNaperville, IL 605641255311502
  8. Karla Holtzman, PANaperville, IL 605641851544936

Common questions

What is Therese E. Nash, PA-C's NPI number?

Therese E. Nash, PA-C's National Provider Identifier (NPI) is 1437295250, issued on Jan 29, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Therese E. Nash, PA-C located?

The NPPES record lists a practice address at 4405 Weaver Pkwy, Warrenville, IL, 60555. Phone: (630) 352-5450. Providers update this record themselves, so call before visiting.

How can I verify Therese E. Nash, PA-C's license?

NPPES lists Illinois license number 085002733, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Therese E. Nash, PA-C prescribe under Medicare Part D?

In 2024, Therese E. Nash, PA-C had 756 Medicare Part D claims for 218 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.

What is Therese E. Nash, 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.