NPPES file of Aug 9, 2026

Stacy Olswang, O.D.

Optometrist · Chicago, IL

Stacy Olswang, O.D. is an optometrist with a practice address in Chicago, Illinois, and NPI 1851440010, issued on Jan 9, 2007. Check the license (Illinois 046-009152, 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
1851440010
Name
Stacy Olswang
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
046-009152 IL
Self-reported in NPPES; status is on the state search
Practice location
3143 W Devon Ave, Chicago, IL 60659
Phone
(773) 764-5300
Enumerated
Jan 9, 2007
Record last updated
May 10, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20091119000273); accepts Medicare assignment
Medical or professional school
State University Of New York - State College Optometry, 1998
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 3143 W Devon Ave

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

  1. Varoujan Dadourian, DDSDentist1386835528
  2. Justin Gordon, ODOptometrist1366459711
  3. Sarrah Malke, RDHDental Hygienist1164807434
  4. Mark Mkrdichian, D.D.S.Dentist1679641633
  5. Ramel Odisho, DMDDentist1255063632

Verify Stacy Olswang 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 046-009152
    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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96% fewer Medicare Part D claims than the average optometrist in 2024

11 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Stacy Olswang11
  2. Specialty average277

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: $42.30

2 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stacy Olswang$42.30
  2. Specialty average$769.99

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

Stacy Olswang among 2,697 optometrist records in Illinois

Stacy Olswang, 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. Its NPI, issued in 2007, is newer than 37% of them.

  • NPI issued2007 · 37% of these records are older, 48% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated1998 · median 2008 among the 1,513 with a school on file
  • Record last updated2011 · 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.

The 8 optometrist records with the nearest ZIP codes

  1. Marianna Bilis, O.D.Chicago, IL 606591912976044
  2. Julie Bruce, O.D.Chicago, IL 606591144419847
  3. Jennifer Bulmann, O.D.Chicago, IL 606591811980964
  4. James Chikaraishi, O.D.Chicago, IL 606591376690784
  5. Jane Cho, O.D.Chicago, IL 606591760697379
  6. Ralph Gebert, ODChicago, IL 606591720151152
  7. Shira Gelb, O.D.Chicago, IL 606591427148915
  8. Justin Gordon, ODChicago, IL 606591366459711

Common questions

What is Stacy Olswang, O.D.'s NPI number?

Stacy Olswang, O.D.'s National Provider Identifier (NPI) is 1851440010, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Stacy Olswang, O.D. located?

The NPPES record lists a practice address at 3143 W Devon Ave, Chicago, IL, 60659. Phone: (773) 764-5300. Providers update this record themselves, so call before visiting.

How can I verify Stacy Olswang, O.D.'s license?

NPPES lists Illinois license number 046-009152, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Stacy Olswang, O.D. prescribe under Medicare Part D?

In 2024, Stacy Olswang, O.D. had 11 Medicare Part D claims; 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.