NPPES file of Aug 9, 2026

Xiomara Nieto, FNP

Family Nurse Practitioner · Chicago, IL

Xiomara Nieto, FNP is a family nurse practitioner with a practice address in Chicago, Illinois, and NPI 1619476116, issued on Feb 9, 2018. Check the license (Illinois 209.016080, 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
1619476116
Name
Xiomara Nieto
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
209.016080 IL
Self-reported in NPPES; status is on the state search
Practice location
4070 N Milwaukee Ave, Chicago, IL 60641
Phone
(312) 374-6104
Enumerated
Feb 9, 2018
Record last updated
Jul 20, 2023
Medicare enrollment
Enrolled (PECOS I20190417000547); accepts Medicare assignment
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 4070 N Milwaukee Ave

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

  1. Estera Alexa, FNPNurse Practitioner1013658434
  2. Joren KingFamily Nurse Practitioner1417744681

Verify Xiomara Nieto 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 209.016080
    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

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93% fewer Medicare Part D claims than the average family nurse practitioner in 2024

92 Medicare Part D claims for 66 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Xiomara Nieto92
  2. Specialty average1,305

Most prescribed

  1. Azithromycin13 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.

Bills Medicare through one group practice

  1. Midwest Express Care 2, IncWillowbrook, IL

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

Xiomara Nieto among 7,639 family nurse practitioner records in Illinois

Xiomara Nieto, FNP is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 44% of them.

  • NPI issued2018 · 44% of these records are older, 49% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2016 · median 2018 among the 4,778 with a school on file
  • Record last updated2023 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,567 family nurse practitioner records list a practice address in Chicago

They are 1,567 of the 63,379 NPPES records with a practice address in Chicago, and 7,639 family nurse practitioner records in Illinois.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Khadra AljaziChicago, IL 606411427599265
  2. Jessica Antoni, APNChicago, IL 606411700276995
  3. Stacey Arackal, FNPChicago, IL 606411699422857
  4. Nancy Chavez, APRN, FNP-BCChicago, IL 606411649940982
  5. Karen CunninghamChicago, IL 606411609451251
  6. Roger John Golingan, FNPChicago, IL 606411487036752
  7. Karen Jellen, N.P.Chicago, IL 606411790868347
  8. Bernadeta Kapustka, FNP NP-CChicago, IL 606411255898482

Common questions

What is Xiomara Nieto, FNP's NPI number?

Xiomara Nieto, FNP's National Provider Identifier (NPI) is 1619476116, issued on Feb 9, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Xiomara Nieto, FNP located?

The NPPES record lists a practice address at 4070 N Milwaukee Ave, Chicago, IL, 60641. Phone: (312) 374-6104. Providers update this record themselves, so call before visiting.

How can I verify Xiomara Nieto, FNP's license?

NPPES lists Illinois license number 209.016080, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Xiomara Nieto, FNP prescribe under Medicare Part D?

In 2024, Xiomara Nieto, FNP had 92 Medicare Part D claims for 66 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.