NPPES file of Aug 9, 2026

Osvaldo I. Lopez, M.D.

Ophthalmology Physician · Chicago, IL

Osvaldo I. Lopez, M.D. is an ophthalmology physician with a practice address in Chicago, Illinois, and NPI 1346296415, issued on May 26, 2006. Check the license (Illinois 036044342, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1346296415
Name
Osvaldo I. Lopez
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
036044342 IL
Self-reported in NPPES; status is on the state search
Practice location
3982 N Milwaukee Ave, Chicago, IL 60641
Phone
(773) 282-2000
Enumerated
May 26, 2006
Record last updated
Dec 19, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(773) 282-9428
Medicaid ID
036044342 IL
Medicare enrollment
Enrolled (PECOS I20110201000590); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1970
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 3982 N Milwaukee Ave

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

  1. Harvinder Atluri, M.D.Ophthalmology Physician1306887518
  2. David Greenberg, O.D.Optometrist1093047003
  3. Michael Korey, M.D.Ophthalmology Physician1497792410
  4. Andrew Lewicky, M.D.Ophthalmology Physician1407893449
  5. Francisco Marruenda, M.D.Ophthalmology Physician1992758817
  6. David Tresley, M.D.Ophthalmology Physician1508803511

Verify Osvaldo I. Lopez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036044342
    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
Open the Illinois license search

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52% more Medicare Part D claims than the average ophthalmology physician in 2024

2,307 Medicare Part D claims for 533 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.

  1. Osvaldo Lopez2,307
  2. Specialty average1,518

Most prescribed

  1. Latanoprost620 claims
  2. Prednisolone Acetate300 claims
  3. Ketorolac Tromethamine236 claims
  4. Lumigan236 claims
  5. Ciprofloxacin Hcl190 claims
  6. Dorzolamide-Timolol119 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: $1,437.31

68 payments; by number, the most common kind was food and beverage; the largest payer was Biotissue Holdings Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Osvaldo Lopez$1,437.31
  2. Specialty average$4,535.02

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. Illinois College OF OptometryChicago, IL
  2. Ocular Partners PLLCChicago, IL
  3. Thorek Memorial HospitalChicago, IL · Acute Care 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).

Ophthalmology Physician providers in Illinois

There are 898 ophthalmology physician records in Illinois.

Other ophthalmology physician records in Illinois

  1. Walid Abdallah, MDRockford, IL1871912717
  2. Robert Abishek, MDChicago, IL1760314678
  3. Ashley Abraham, M.D.Springfield, IL1285900423
  4. Evelyn Ackermann, MDElgin, IL1053308676
  5. Kathleen Ackman Blake, MDHinsdale, IL1497734966
  6. Kaela Acuff, MDChicago, IL1609678549
  7. Nolan AdamsMaywood, IL1124581780
  8. Mohamed Adenwalla, M.D.Elmhurst, IL1184679524
  9. Roger Adler, MDPekin, IL1063465110
  10. Armin Afshar, M.D.Chicago, IL1063742161

Common questions

What is Osvaldo I. Lopez, M.D.'s NPI number?

Osvaldo I. Lopez, M.D.'s National Provider Identifier (NPI) is 1346296415, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Osvaldo I. Lopez, M.D. located?

The NPPES record lists a practice address at 3982 N Milwaukee Ave, Chicago, IL, 60641. Phone: (773) 282-2000. Providers update this record themselves, so call before visiting.

How can I verify Osvaldo I. Lopez, M.D.'s license?

NPPES lists Illinois license number 036044342, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Osvaldo I. Lopez, M.D. prescribe under Medicare Part D?

In 2024, Osvaldo I. Lopez, M.D. had 2,307 Medicare Part D claims for 533 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.