Steven K. Siu, OD
Optometrist · Chicago, IL
Steven K. Siu, OD is an optometrist with a practice address in Chicago, Illinois, and NPI 1578196341, issued on Feb 19, 2020. Check the license (Illinois 046011416, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Steven K. Siu
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 046011416 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2719 S Princeton Ave FL 1, Chicago, IL 60616
- Phone
- (312) 519-0203
- Enumerated
- Feb 19, 2020
- Record last updated
- Jun 2, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,697 in Illinois → Look up another NPI →
Verify Steven K. Siu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 046011416Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average optometrist in 2024
14 Medicare Part D claims for 11 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
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.
Steven K. Siu among 2,697 optometrist records in Illinois
Steven K. Siu, OD 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. Its NPI, issued in 2020, is newer than 83% of them.
- NPI issued2020 · 83% of these records are older, 15% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2020 · 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.
All 2,697 in Illinois → Every provider in Chicago → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Christine Allison, ODChicago, IL 606161467445908
- Michael Chaglasian, ODChicago, IL 606161841283330
- Mark Colip, ODChicago, IL 606161659364149
- Helen Gabriel, ODChicago, IL 606161164415600
- Gary Gunderson, ODChicago, IL 606161699768135
- Neil Hodur, ODChicago, IL 606161770576217
- Janice Jurkus, ODChicago, IL 606161972596419
- Valerie Kattouf, ODChicago, IL 606161144213687
Common questions
What is Steven K. Siu, OD's NPI number?
Steven K. Siu, OD's National Provider Identifier (NPI) is 1578196341, issued on Feb 19, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Steven K. Siu, OD located?
The NPPES record lists a practice address at 2719 S Princeton Ave FL 1, Chicago, IL, 60616. Phone: (312) 519-0203. Providers update this record themselves, so call before visiting.
How can I verify Steven K. Siu, OD's license?
NPPES lists Illinois license number 046011416, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Steven K. Siu, OD prescribe under Medicare Part D?
In 2024, Steven K. Siu, OD had 14 Medicare Part D claims for 11 beneficiaries; the average among optometrist prescribers was 277. 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.