NPPES file of Aug 9, 2026

Lee-Anne J. Millas, APN, FNP-C

Psychiatric/Mental Health Nurse Practitioner · Oak Brook, IL

Lee-Anne J. Millas, APN, FNP-C is a psychiatric/mental health nurse practitioner with a practice address in Oak Brook, Illinois, and NPI 1558766139, issued on Oct 25, 2014. Check the license (Illinois 27704719, 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
1558766139
Name
Lee-Anne J. Millas
Credential
APN, FNP-C
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License numbers
27704719 IL
041371891 IL
277004719 IL
Self-reported in NPPES; status is on the state search
Practice location
2311 W 22ND St Ste 300, Oak Brook, IL 60523
Phone
(773) 413-3893
Enumerated
Oct 25, 2014
Record last updated
Feb 20, 2026
Medicare enrollment
Enrolled (PECOS I20141215002410); 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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Verify Lee-Anne J. Millas 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 27704719
    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
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2.2 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024

1,956 Medicare Part D claims for 221 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. 95 claims were for opioids.

  1. Lee-Anne Millas1,956
  2. Specialty average906

Most prescribed

  1. Amlodipine Besylate116 claims
  2. Hydralazine Hcl103 claims
  3. Omeprazole83 claims
  4. Atorvastatin Calcium76 claims
  5. Levothyroxine Sodium76 claims
  6. Eliquis68 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.

Industry payments in 2024: $13.32

1 payment: food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lee-Anne Millas$13.32
  2. Specialty average$1,027.77

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

3 hospitals and group practices

  1. Advocate Health And Hospitals CorporationBuffalo Grove, IL
  2. MD @ Home Illinois, SCChicago, IL
  3. Ringgold County HospitalMount Ayr, IA · Critical Access Hospitals

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

12 psychiatric/mental health nurse practitioner records list a practice address in Oak Brook

They are 12 of the 950 NPPES records with a practice address in Oak Brook, and 1,530 psychiatric/mental health nurse practitioner records in Illinois.

Other psychiatric/mental health nurse practitioner records in Illinois

  1. Lawrence Abah, APNAurora, IL1306305115
  2. Afolasade Abayomi Jarrett, PMHNP-BCCrest Hill, IL1114559242
  3. Muinat AbdulmajeedPlainfield, IL1588517262
  4. Addecia AbelOak Lawn, IL1528991809
  5. Rubabetu Abimbola AkinolaAurora, IL1801520630
  6. Ifeoma Abolarin, PMHNPChicago, IL1528774353
  7. Elenmor Achurra, DNP, APRN, PMHNP-BCChicago, IL1134862493
  8. Kevin Acosta Reyes, PMHNP-BCChicago, IL1215876610
  9. Nicole Adamowicz, PMHNPChicago, IL1043040785
  10. Amy Adams, APN, FNP, PMHNPJoliet, IL1508049552

Common questions

What is Lee-Anne J. Millas, APN, FNP-C's NPI number?

Lee-Anne J. Millas, APN, FNP-C's National Provider Identifier (NPI) is 1558766139, issued on Oct 25, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Lee-Anne J. Millas, APN, FNP-C located?

The NPPES record lists a practice address at 2311 W 22ND St Ste 300, Oak Brook, IL, 60523. Phone: (773) 413-3893. Providers update this record themselves, so call before visiting.

How can I verify Lee-Anne J. Millas, APN, FNP-C's license?

NPPES lists Illinois license number 27704719, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Lee-Anne J. Millas, APN, FNP-C prescribe under Medicare Part D?

In 2024, Lee-Anne J. Millas, APN, FNP-C had 1,956 Medicare Part D claims for 221 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.