NPPES file of Aug 9, 2026

Chad Thomas Millsap, O.D.

Optometrist · Chicago, IL

Chad Thomas Millsap, O.D. is an optometrist with a practice address in Chicago, Illinois, and NPI 1477584605, issued on Jul 5, 2006. Check the license (Illinois 046.009390, as entered in NPPES) with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1477584605
Name
Chad Thomas Millsap
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
046.009390 IL
Self-reported in NPPES; status is on the state search
Practice location
1515 N Milwaukee Ave, Chicago, IL 60622
Phone
(773) 772-2424
Enumerated
Jul 5, 2006
Record last updated
Sep 10, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(773) 772-2828
Medicare enrollment
Enrolled (PECOS I20050726000166); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 2001
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.
Download card Updates feed

Verify Chad Thomas Millsap 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 046.009390
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Chad Thomas Millsap among 2,697 optometrist records in Illinois

Chad Thomas Millsap, O.D. is one of 2,697 optometrist records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 63% newer
  • In a Medicare fileNo · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2001 · median 2008 among the 1,513 with a school on file
  • Record last updated2008 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Illinois

There are 2,697 optometrist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 optometrist records with the nearest ZIP codes

  1. Michael Binder, O.D.Chicago, IL 606221598738353
  2. Stephanie Corbin, ODChicago, IL 606221124545603
  3. Kelsey FrederickChicago, IL 606221073927562
  4. Julie Klein, O.D.Chicago, IL 606221134675945
  5. David KorsakChicago, IL 606221659940492
  6. Cassandra Koutnik, O.D.Chicago, IL 606221093190019
  7. Irena Leseiko-Owerko, O.D.Chicago, IL 606221265440374
  8. Travis Park, O.D.Chicago, IL 606221689830275

Common questions

What is Chad Thomas Millsap, O.D.'s NPI number?

Chad Thomas Millsap, O.D.'s National Provider Identifier (NPI) is 1477584605, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chad Thomas Millsap, O.D. located?

The NPPES record lists a practice address at 1515 N Milwaukee Ave, Chicago, IL, 60622. Phone: (773) 772-2424. Providers update this record themselves, so call before visiting.

How can I verify Chad Thomas Millsap, O.D.'s license?

NPPES lists Illinois license number 046.009390, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity 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. 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.