DR. SHERIDAN LAM M.D.
NPI 1689673964
Ophthalmology in Lombard, IL

Q: What is Sheridan Lam's NPI number?

The NPI number for Sheridan Lam is 1689673964. It was assigned to this individual provider in the NPPES registry on July 19, 2005.

Q: What is Sheridan Lam's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for Sheridan Lam was last updated on May 13, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 19, 2005PECOS EnrolledAccepts Medicare Assignment

2500 S HIGHLAND AVE, SUITE 110, LOMBARD, IL 60148(630) 495-2220(630) 495-2279 Get Directions Write a Review

NPPES record last updated: May 13, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. Sheridan Lam M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SHERIDAN LAM M.D. (NPI 1689673964) is an individual ophthalmology provider in Lombard, Illinois, licensed in Illinois (036071526) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Elmhurst Memorial Hospital, and is a graduate of Northwestern University Feinberg Medical School (1984).

NPPES Registry Identity

NPI1689673964

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDR. SHERIDAN LAMCredential: M.D.

Location Address2500 S HIGHLAND AVE, SUITE 110Lombard, IL 60148-5363

Mailing Address2500 S Highland Avenue, Suite 110Lombard, IL 60148-5381 · (630) 495-2220 · Fax (630) 495-2279

Phone(630) 495-2220

Fax(630) 495-2279

Sole ProprietorNo

Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 1984

Enumeration DateJuly 19, 2005

Last NPPES UpdateMay 13, 2010

✔ NPI 1689673964 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in IL · 036071526

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

2500 S HIGHLAND AVE, Lombard, IL 60148

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Other Identifiers 3

Medicare UPINE23463IL

Medicaid036071526IL

Medicare PINK27890IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Sheridan Lam M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6608887740

PECOS Enrollment IDI20060619000123

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Sheridan Lam reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dupage Ophthalmology

Same address

Ophthalmology

2500 S HIGHLAND AVENUE, SUITE 110
Lombard, IL 60148

Reassigned Medicare billing, Illinois enrollment
3 clinicians in this Medicare group

NPI 1134170541 (630) 495-2220

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 13

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient complete exam of visual system 92014

An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.

1,768 services1,404 patients

Established patient problem focused exam of visual system 92012

This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.

939 services436 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

777 services620 patients

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

669 services548 patients

Exam of visual field with extended testing 92083

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

337 services320 patients

New patient complete exam of visual system 92004

A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.

296 services294 patients

Imaging of optic nerve 92133

Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).

270 services199 patients

Measurement of corneal curvature and depth of eye 92136

This procedure measures the shape and depth of your eye, specifically the cornea, the clear front surface. It helps in diagnosing conditions, planning for surgeries, or fitting contact lenses. It's non-invasive and painless.

231 services166 patients

Removal of cataract with insertion of prosthetic lens 66984

This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.

194 services135 patients

Closure of tear duct opening using plug 68761

Closure of the tear duct opening using a plug is a procedure to address excessive tear production. A small device is inserted into the tear duct to block it, reducing tear flow and relieving symptoms. This is a safe, reversible process, often performed in-office.

97 services21 patients

Removal of recurring cataract in lens capsule using a laser 66821

This procedure, known as YAG laser capsulotomy, treats cloudiness in the lens capsule following cataract surgery. A laser is used to create a small hole in the cloudy capsule, allowing light to pass through and restore clear vision. It's a quick, painless procedure.

83 services73 patients

New patient problem focused exam of visual system 92002

A new patient problem-focused exam of the visual system is a basic evaluation of your eyes and vision. It includes checking your eye movements, visual acuity, and general eye health. It helps detect any potential issues early for timely treatment.

40 services40 patients

Ct scan of cornea 92025

A CT scan of the cornea is a non-invasive imaging test that uses X-rays to capture detailed pictures of your eye's cornea. It helps in diagnosing diseases or damage, planning for surgery, or evaluating the results of a treatment. It's a safe and painless procedure.

14 services14 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Elmhurst Memorial Hospital

Acute Care Hospitals · Elmhurst, IL

4/5 CMS rating

OwnershipProprietary

CMS Certification Number140200

Location155 East Brush Hill RoadElmhurst, IL 60126 · Du Page County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60148 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$137.43 typical visit price

range $59.81 – $181.38

Typical copayment $34.35 (range $14.95 – $45.34)

Most-billed visit code 99204

Established Patient

$74.38 typical visit price

range $19.15 – $147.12

Typical copayment $18.59 (range $4.78 – $36.78)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LEON L CHEN O.M.D., L.AC.

Acupuncturist

2500 S HIGHLAND AVE, SUITE 342
LOMBARD, IL 60148

Dupage County (630) 916-0781

PRIMARY CARE SERVICES

Internal Medicine

2500 S HIGHLAND AVE, SUITE 230
LOMBARD, IL 60148

Dupage County (630) 429-9000

CENTER FOR DERMATOLOGY AND SKIN CANCER LTD

Dermatology (MOHS-Micrographic Surgery)

2500 S HIGHLAND AVE, SUITE 200
LOMBARD, IL 60148

Dupage County (630) 964-2000

JACEK ZAJAC M.D.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

2500 S HIGHLAND AVE, STE 104
LOMBARD, IL 60148

Dupage County (630) 629-3610

MEGHAN FLYNN COLAN MS CCC-SLP

Speech-Language Pathologist

2500 S HIGHLAND AVE, SUITE 330
LOMBARD, IL 60148

Dupage County (847) 749-3397

DR. ABID KHURSHID M.D.

Internal Medicine (Pulmonary Disease)

2500 S HIGHLAND AVE, SUITE 325
LOMBARD, IL 60148

Dupage County (630) 495-9810

NHG SERVICES, INC

General Practice

2500 S HIGHLAND AVE
LOMBARD, IL 60148

Dupage County (630) 326-6071

APRIL ROSE DIFATTA LCPILL

Counselor (Professional)

2500 S HIGHLAND AVE
LOMBARD, IL 60148

Dupage County (630) 728-1744

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sheridan Lam's NPI number?

The NPI number for Sheridan Lam is 1689673964. It was assigned to this individual provider in the NPPES registry on July 19, 2005.

Where is Sheridan Lam located?

Sheridan Lam practices at 2500 S Highland Ave Suite 110, Lombard, IL 60148. The listed phone number is (630) 495-2220.

What is Sheridan Lam's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Sheridan Lam enrolled in Medicare?

Yes. Sheridan Lam is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Sheridan Lam's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sheridan Lam reassigns Medicare benefits to Dupage Ophthalmology (Lombard, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sheridan Lam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sheridan Lam accept?

Health plans from Oscar Health list Sheridan Lam as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Sheridan Lam affiliated with any hospitals?

According to CMS data, Sheridan Lam is affiliated with Elmhurst Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Sheridan Lam was last updated on May 13, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.