NPPES file of Aug 9, 2026

Sheridan Lam, M.D.

Ophthalmology Physician · Lombard, IL

Sheridan Lam, M.D. is an ophthalmology physician with a practice address in Lombard, Illinois, and NPI 1689673964, issued on Jul 19, 2005. Check the license (Illinois 036071526, 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
1689673964
Name
Sheridan Lam
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
036071526 IL
Self-reported in NPPES; status is on the state search
Practice location
2500 S Highland Ave, Lombard, IL 60148
Phone
(630) 495-2220
Enumerated
Jul 19, 2005
Record last updated
May 13, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(630) 495-2279
Medicaid ID
036071526 IL
Medicare enrollment
Enrolled (PECOS I20060619000123); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1984
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 2500 S Highland Ave

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

  1. Leon Chen, O.M.D., L.AC.Acupuncturist1194920959
  2. April Difatta, LCPILLProfessional Counselor1639765357
  3. Meghan Flynn Colan, MS CCC-SLPSpeech-Language Pathologist1417895889
  4. Balaji Gupta, MDOphthalmology Physician1992767818
  5. Abid Khurshid, M.D.Pulmonary Disease Physician1467475848
  6. Robert Kolbusz, M.D.MOHS-Micrographic Surgery Physician1669403457

Verify Sheridan Lam 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 036071526
    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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2.2 times the Medicare Part D claims of the average ophthalmology physician in 2024

3,323 Medicare Part D claims for 911 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.

  1. Sheridan Lam3,323
  2. Specialty average1,518

Most prescribed

  1. Latanoprost733 claims
  2. Prednisolone Acetate687 claims
  3. Ofloxacin446 claims
  4. Timolol Maleate176 claims
  5. Loteprednol Etabonate108 claims
  6. Brimonidine Tartrate98 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: $376.69

16 payments; by number, the most common kind was food and beverage; the largest payer was Oyster Point Pharma, 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. Sheridan Lam$376.69
  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.

Bills Medicare through one group practice

  1. Dupage OphthalmologyLombard, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sheridan Lam among 898 ophthalmology physician records in Illinois

Sheridan Lam, M.D. is one of 898 ophthalmology physician records with a practice address in Illinois. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 84% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1984 · median 1999 among the 551 with a school on file
  • Record last updated2010 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Illinois

There are 898 ophthalmology physician records in Illinois.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Balaji Gupta, MDLombard, IL 601481992767818
  2. Daniel Owens, M.D.Lombard, IL 601481750544250
  3. Susan Vierling, M.D.Lombard, IL 601481306825930
  4. Meenakshi Chaku, M.D.Maywood, IL 601531578774303
  5. Felipe De Alba, MDMaywood, IL 601531558335687
  6. Larissa Ghadiali, M.D.Maywood, IL 601531295029270
  7. Walter Jay, MDMaywood, IL 601531609840735
  8. Anuradha Khanna, MDMaywood, IL 601531881668770

Common questions

What is Sheridan Lam, M.D.'s NPI number?

Sheridan Lam, M.D.'s National Provider Identifier (NPI) is 1689673964, issued on Jul 19, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Sheridan Lam, M.D. located?

The NPPES record lists a practice address at 2500 S Highland Ave, Lombard, IL, 60148. Phone: (630) 495-2220. Providers update this record themselves, so call before visiting.

How can I verify Sheridan Lam, M.D.'s license?

NPPES lists Illinois license number 036071526, 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 Sheridan Lam, M.D. prescribe under Medicare Part D?

In 2024, Sheridan Lam, M.D. had 3,323 Medicare Part D claims for 911 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.