NPPES file of Aug 9, 2026

Whitney Kristine Clack, PA-C

Physician Assistant · Chicago, IL

Whitney Kristine Clack, PA-C is a physician assistant with a practice address in Chicago, Illinois, and NPI 1326546185, issued on Jan 26, 2018. Check the license (Illinois 085-006529, 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
1326546185
Name
Whitney Kristine Clack
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
085-006529 IL
Self-reported in NPPES; status is on the state search
Practice location
259 E Erie St FL 17, Chicago, IL 60611
Phone
(312) 926-6000
Enumerated
Jan 26, 2018
Record last updated
Jan 28, 2026
Fax
(312) 926-0516
Medicare enrollment
Enrolled (PECOS I20180406001870); 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 259 E Erie St FL 17

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

  1. Ijeoma Achebe, FNPNurse Practitioner1013498294
  2. Alayna Anerino, APRN, CNPNurse Practitioner1760835714
  3. Jennifer Baralli, A.P.N.Nurse Practitioner1851737548
  4. Paige Birge, PA-CPhysician Assistant1871063263
  5. Patricia Carucci, MS, RDN, LDNRegistered Dietitian1376339564
  6. Daniel Doherty, PAPhysician Assistant1588100184

Verify Whitney Kristine Clack 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 085-006529
    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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97% fewer Medicare Part D claims than the average physician assistant in 2024

23 Medicare Part D claims for 21 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Whitney Clack23
  2. Specialty average830

Most prescribed

  1. Mupirocin17 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 FoundationChicago, IL

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

1,445 physician assistant records list a practice address in Chicago

They are 1,445 of the 63,379 NPPES records with a practice address in Chicago, and 4,926 physician assistant records in Illinois.

Other physician assistant records in Illinois

  1. Brooke Aarhus, PA-CPark Ridge, IL1760985469
  2. Sana Abbasi, PACarol Stream, IL1831803295
  3. Susan Abbinanti, PA-CElk Grove Village, IL1679647358
  4. Katheryn Abbott, PASchaumburg, IL1356842082
  5. Noor Abdelrahman, PA-CChicago, IL1851012413
  6. Amer Abdulghafoor, MSW, MS, PA-CChicago, IL1619401718
  7. Kazuko Abe, P.A.Chicago, IL1881840783
  8. Greta Abel, PA-CWheaton, IL1174844096
  9. Derrik AbellAnna, IL1821618471
  10. Jeanine Aberbook, PA-CChicago, IL1518664176

Common questions

What is Whitney Kristine Clack, PA-C's NPI number?

Whitney Kristine Clack, PA-C's National Provider Identifier (NPI) is 1326546185, issued on Jan 26, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Whitney Kristine Clack, PA-C located?

The NPPES record lists a practice address at 259 E Erie St FL 17, Chicago, IL, 60611. Phone: (312) 926-6000. Providers update this record themselves, so call before visiting.

How can I verify Whitney Kristine Clack, PA-C's license?

NPPES lists Illinois license number 085-006529, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Whitney Kristine Clack, PA-C prescribe under Medicare Part D?

In 2024, Whitney Kristine Clack, PA-C had 23 Medicare Part D claims for 21 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Whitney Kristine Clack, 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.