Loretta L. De Koster, O.D.
Optometrist · Elmwood Park, IL
Loretta L. De Koster, O.D. is an optometrist with a practice address in Elmwood Park, Illinois, and NPI 1316028723, issued on Oct 19, 2006. Check the license (Illinois 046.008683, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Loretta L. De Koster
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 046.008683 IL
046008683 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2500 N. Harlem Ave, Elmwood Park, IL 60707
- Phone
- (708) 456-4362
- Enumerated
- Oct 19, 2006
- Record last updated
- Jul 5, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (708) 456-5161
- Medicare enrollment
- Enrolled (PECOS I20241115001953); accepts Medicare assignment
- Medical or professional school
- Illinois College Of Optometry At Chicago, 1993
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,697 in Illinois → Look up another NPI →
Verify Loretta L. De Koster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 046.008683Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $192.94
2 payments; by number, the most common kind was food and beverage; the largest payer was Oyster Point Pharma, Inc. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Desert Elite Eye Group IncPalm Desert, CA
- Desert Ophthalmology Medical CorporationPalm Springs, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Loretta L. De Koster among 2,697 optometrist records in Illinois
Loretta L. De Koster, 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 63% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1993 · median 2008 among the 1,513 with a school on file
- Record last updated2018 · 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).
5 optometrist records list a practice address in Elmwood Park
They are 5 of the 180 NPPES records with a practice address in Elmwood Park, and 2,697 optometrist records in Illinois.
All 2,697 in Illinois → Every provider in Elmwood Park → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Stacy Beute, ODElmwood Park, IL 607071952492647
- Amit Bhambri, O.D.Chicago, IL 607071144517020
- Christopher Frame, O.D.Elmwood Park, IL 607071023204955
- Luma MallahElmwood Park, IL 607071558195453
- Elizabeth Panton, O.D.Elmwood Park, IL 607071881785574
- James Stevens, O.D.Chicago, IL 607071508920349
- Haley Boswick, ODNorridge, IL 607061528626769
- Andjela Bursac, ODNorridge, IL 607061912732686
Common questions
What is Loretta L. De Koster, O.D.'s NPI number?
Loretta L. De Koster, O.D.'s National Provider Identifier (NPI) is 1316028723, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Loretta L. De Koster, O.D. located?
The NPPES record lists a practice address at 2500 N. Harlem Ave, Elmwood Park, IL, 60707. Phone: (708) 456-4362. Providers update this record themselves, so call before visiting.
How can I verify Loretta L. De Koster, O.D.'s license?
NPPES lists Illinois license number 046.008683, 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. 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.