Chelsea K. O'Malley, DNP, APRN
Nurse Practitioner · Chicago, IL
Chelsea K. O'Malley, DNP, APRN is a nurse practitioner with a practice address in Chicago, Illinois, and NPI 1336729490, issued on Apr 13, 2021. Check the license (Illinois 209023146, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Chelsea K. O'Malley
- Credential
- DNP, APRN
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 209023146 IL
209.023146 IL
Self-reported in NPPES; status is on the state search - Practice location
- 675 N Saint Clair St Ste 19-100, Chicago, IL 60611
- Phone
- (312) 695-2000
- Enumerated
- Apr 13, 2021
- Record last updated
- Oct 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210914000120); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 4,892 in Illinois → Look up another NPI →
Also registered at 675 N Saint Clair St Ste 19-100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Chelsea K. O'Malley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209023146Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average nurse practitioner in 2024
734 Medicare Part D claims for 219 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Spironolactone107 claims
- Entresto80 claims
- Bumetanide73 claims
- Jardiance54 claims
- Carvedilol53 claims
- Metoprolol Succinate43 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: $23.52
1 payment: food and beverage; the largest payer was Scpharmaceuticals 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.
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 FoundationPalos Heights, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chelsea K. O'Malley among 4,892 nurse practitioner records in Illinois
Chelsea K. O'Malley, DNP, APRN 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 2021, is newer than 67% of them.
- NPI issued2021 · 67% of these records are older, 27% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2020 · median 2018 among the 3,389 with a school on file
- Record last updated2021 · 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).
952 nurse practitioner records list a practice address in Chicago
They are 952 of the 63,379 NPPES records with a practice address in Chicago, and 4,892 nurse practitioner records in Illinois.
All 4,892 in Illinois → Every provider in Chicago → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Sarah Anderson, NPChicago, IL 606111043243355
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- Joanne Cullina, MSN, APNChicago, IL 606111619904885
- Florence Denby, RN, CNP, APNChicago, IL 606111598773103
- Rebecca DukeChicago, IL 606111932204286
- Sylvia Duraski, CNP, APNChicago, IL 606111417965039
- Barbara Guido, APN-CNPChicago, IL 606111780784611
- Susanna Miranda, DNP, APRN, AGNP-CChicago, IL 606111831118512
Common questions
What is Chelsea K. O'Malley, DNP, APRN's NPI number?
Chelsea K. O'Malley, DNP, APRN's National Provider Identifier (NPI) is 1336729490, issued on Apr 13, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Chelsea K. O'Malley, DNP, APRN located?
The NPPES record lists a practice address at 675 N Saint Clair St Ste 19-100, Chicago, IL, 60611. Phone: (312) 695-2000. Providers update this record themselves, so call before visiting.
How can I verify Chelsea K. O'Malley, DNP, APRN's license?
NPPES lists Illinois license number 209023146, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Chelsea K. O'Malley, DNP, APRN prescribe under Medicare Part D?
In 2024, Chelsea K. O'Malley, DNP, APRN had 734 Medicare Part D claims for 219 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Chelsea K. O'Malley, DNP, APRN'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.