NPPES file of Aug 9, 2026

Katherine Whittaker Walsh, RN, APN, CNP

Acute Care Nurse Practitioner · Chicago, IL

Katherine Whittaker Walsh, RN, APN, CNP is an acute care nurse practitioner with a practice address in Chicago, Illinois, and NPI 1295988210, issued on Nov 4, 2008. Check the license (Illinois 209003069, 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
1295988210
Name
Katherine Whittaker Walsh
Credential
RN, APN, CNP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License numbers
209003069 IL
041284177 IL
Self-reported in NPPES; status is on the state search
Practice location
912 S Wood St # MC799, Chicago, IL 60612
Phone
(312) 996-4842
Enumerated
Nov 4, 2008
Record last updated
Nov 4, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170517000860); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 1996
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 912 S Wood St # MC799

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

  1. Christopher Stapleton, MDNeurological Surgery Physician1083908099

Verify Katherine Whittaker Walsh 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 209003069
    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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87% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024

80 Medicare Part D claims for 27 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.

  1. Katherine Walsh80
  2. Specialty average594

Most prescribed

  1. Brilinta36 claims
  2. Clopidogrel30 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): 87.1 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.

  1. Qualityout of 100 · 30% of the final score70.8
  2. Costout of 100 · 30%52.8
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. The Board OF Trustees OF The University OF IllinoisChicago, IL

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

Katherine Whittaker Walsh among 639 acute care nurse practitioner records in Illinois

Katherine Whittaker Walsh, RN, APN, CNP is one of 639 acute care nurse practitioner records with a practice address in Illinois. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 10% of them.

  • NPI issued2008 · 10% of these records are older, 85% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1996 · median 2017 among the 434 with a school on file
  • Record last updated2008 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Acute Care Nurse Practitioner providers in Illinois

There are 639 acute care nurse practitioner records in Illinois.

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Denise Beger, CNPChicago, IL 606121265715908
  2. Rory Breslin-Sani, APNChicago, IL 606121932342680
  3. Monique Colbert, APNChicago, IL 606121093044471
  4. Susan Corbridge, PHD, APNChicago, IL 606121265667547
  5. Renee Evans, APNChicago, IL 606121396014650
  6. Nina Grude, NPChicago, IL 606121861705717
  7. Amy Hiller, APNChicago, IL 606121821221474
  8. Elizabeth Hurter, NPChicago, IL 606121760651194

Common questions

What is Katherine Whittaker Walsh, RN, APN, CNP's NPI number?

Katherine Whittaker Walsh, RN, APN, CNP's National Provider Identifier (NPI) is 1295988210, issued on Nov 4, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Whittaker Walsh, RN, APN, CNP located?

The NPPES record lists a practice address at 912 S Wood St # MC799, Chicago, IL, 60612. Phone: (312) 996-4842. Providers update this record themselves, so call before visiting.

How can I verify Katherine Whittaker Walsh, RN, APN, CNP's license?

NPPES lists Illinois license number 209003069, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Katherine Whittaker Walsh, RN, APN, CNP prescribe under Medicare Part D?

In 2024, Katherine Whittaker Walsh, RN, APN, CNP had 80 Medicare Part D claims for 27 beneficiaries; the average among acute care nurse practitioner prescribers was 594. Part D covers Medicare prescriptions only.

What is Katherine Whittaker Walsh, RN, APN, CNP's MIPS final score?

The 2023 MIPS final score is 87.1 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.