1. Home
  2. Directory
  3. Illinois
  4. Elgin
  5. Ophthalmology
  6. NPI Profile

OPHTHALMOLOGY ASSOCIATES LTD
NPI 1558418525
Ophthalmology in Elgin, IL

Active since January 04, 2007
1670 CAPITAL STREET, SUITE 100, ELGIN, IL 60124(847) 888-2020(847) 888-0652 Get Directions Write a Review

NPPES record last updated: February 15, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ophthalmology Associates Ltd NPPES

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

OPHTHALMOLOGY ASSOCIATES LTD (NPI 1558418525), doing business as Seigle-ackermann Eye Associates, is a healthcare organization registered as an ophthalmology in Elgin, Illinois and active in the NPI registry since January 2007. The organization lists Michael L Seigle, President, as its authorized official.

NPPES Registry Identity

NPI1558418525
Entity TypeOrganization
Primary Taxonomy207W00000X
Legal Business NameOPHTHALMOLOGY ASSOCIATES LTD
Location Address1670 CAPITAL STREET, SUITE 100Elgin, IL 60124
Mailing Address1670 Capital Street, Suite 100Elgin, IL 60124 · (847) 888-2020 · Fax (847) 888-0652
Phone(847) 888-2020
Fax(847) 888-0652
Organization SubpartNo
Authorized OfficialMichael L SeiglePresident · (847) 888-2020
Enumeration DateJanuary 4, 2007
Last NPPES UpdateFebruary 15, 2008
✔ NPI 1558418525 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
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.
1670 CAPITAL STREET, Elgin, IL 60124
Open in Google Maps ↗

Other Names 1

Former Legal Business NameSeigle-ackermann Eye Associates

Other Identifiers 4

Medicare PIN340850IL
Medicare NSC4053670001IL
Other0004500697IL · Blue Cross Blue Shield Il
Medicare PINCK5053IL

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of Tennessee.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ophthalmology Associates Ltd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to Ophthalmology Associates Ltd, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (8)

Evelyn Ackermann, MD
Ophthalmology
NPI 1053308676
1670 CAPITAL STREET SUITE 100
Elgin, IL 60124
(847) 888-2020
✔ PECOS✔ Accepts MedicareSame address
Michael Seigle, MD
Ophthalmology
NPI 1639166259
1670 CAPITAL STREET SUITE 100
Elgin, IL 60124
(847) 888-2020
✔ PECOS✔ Accepts MedicareSame address
Nisha Gupta, MD
Ophthalmology
NPI 1659665263
310 S COUNTY FARM RD STE B
Wheaton, IL 60187
(630) 407-1300
✔ PECOS✔ Accepts Medicare18 mi
Kai Kang, M.D.
Ophthalmology
NPI 1871835603
2015 N MAIN ST
Wheaton, IL 60187
(630) 668-8250
✔ PECOS✔ Accepts Medicare18 mi
Vikram Setlur, MD
Ophthalmology
NPI 1750547733
2015 N MAIN ST
Wheaton, IL 60187
(630) 668-8250
✔ PECOS✔ Accepts Medicare18 mi
Sara Vegh, M.D.
Ophthalmology
NPI 1104828102
1880 W WINCHESTER RD SUITE 105
Libertyville, IL 60048
(847) 362-3811
✔ PECOS23 mi
Jamey Ware, O.D.
Optometry
NPI 1205833225
2929 MCFARLAND RD
Rockford, IL 61107
(815) 654-2020
✔ PECOS✔ Accepts Medicare36 mi
Michael Griess, MD
Ophthalmology
NPI 1508878364
1702 UNIVERSITY DR S
Fargo, ND 58103
(701) 364-3300
✔ PECOS✔ Accepts Medicare532 mi

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

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 Ophthalmology Associates Ltd's NPI number?

The NPI number for Ophthalmology Associates Ltd is 1558418525. It was assigned to this organization in the NPPES registry on January 4, 2007. The provider was formerly known as Seigle-Ackermann Eye Associates.

Where is Ophthalmology Associates Ltd located?

Ophthalmology Associates Ltd is located at 1670 Capital Street Suite 100, Elgin, IL 60124. The listed phone number is (847) 888-2020.

What is Ophthalmology Associates Ltd's specialty?

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

Is Ophthalmology Associates Ltd enrolled in Medicare?

Yes. Ophthalmology Associates Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Ophthalmology Associates Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 2 Medicare specialties reassign their Medicare billing to Ophthalmology Associates Ltd. A 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 the clinician's services. The largest specialties are Ophthalmology (7) and Optometry (1). Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Ophthalmology Associates Ltd accept?

Health plans from BlueCross BlueShield of Tennessee list Ophthalmology Associates Ltd 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.

When was this NPI record last updated?

The NPPES record for Ophthalmology Associates Ltd was last updated on February 15, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.