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SIMPSON EYE PHYSICIANS & SURGEONS PLLC
NPI 1821864760
Ophthalmology in West Dundee, IL

Active since December 01, 2023
650 SPRING HILL RING RD STE 2020, WEST DUNDEE, IL 60118(847) 426-0227(847) 426-0299 Get Directions Write a Review

NPPES record last updated: December 1, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Simpson Eye Physicians & Surgeons Pllc NPPES

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

SIMPSON EYE PHYSICIANS & SURGEONS PLLC (NPI 1821864760) is a healthcare organization registered as an ophthalmology in West Dundee, Illinois and active in the NPI registry since December 2023. The organization maintains 2 additional practice locations and lists Michael Damaso De Guzman, Owner, as its authorized official.

NPPES Registry Identity

NPI1821864760
Entity TypeOrganization
Primary Taxonomy207W00000X
Legal Business NameSIMPSON EYE PHYSICIANS & SURGEONS PLLC
Location Address650 SPRING HILL RING RD STE 2020West Dundee, IL 60118-1297
Mailing Address650 Spring Hill Ring Rd Ste 2020West Dundee, IL 60118-1297 · (847) 426-0227 · Fax (847) 426-0299
Phone(847) 426-0227
Fax(847) 426-0299
Organization SubpartNo
Authorized OfficialMichael Damaso De GuzmanOwner · (847) 343-0175
Enumeration DateDecember 1, 2023
NPPES CertifiedDecember 1, 2023
✔ NPI 1821864760 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.
650 SPRING HILL RING RD STE 2020, West Dundee, IL 60118
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Secondary Practice Locations 2

Location 111620 Algonquin RdHuntley, IL 60142-7175 · Phone (847) 426-0227 · Fax (847) 426-0227
Location 2730 E Terra Cotta Ave # B2Crystal Lake, IL 60014-3615 · Phone (847) 426-0227 · Fax (847) 426-0227

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Simpson Eye Physicians & Surgeons Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Simpson Eye Physicians & Surgeons PLLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (6)

Ken Melchionna, D.O
Ophthalmology
NPI 1982660866
650 SPRINGHILL RING ROAD SUITE #2020
Dundee, IL 60118
(847) 426-0227
✔ PECOSSame address
Rehan Hussain, M.D,
Ophthalmology
NPI 1922340066
1530 N RANDALL RD STE 202
Elgin, IL 60123
(847) 488-1030
✔ PECOS✔ Accepts Medicare3.8 mi
Omar Hassan, MD
Ophthalmology
NPI 1366820441
3438 N OLD ARLINGTON HEIGHTS RD
Arlington Heights, IL 60004
(847) 551-0049
✔ PECOS17 mi
Adam Cohen, MD
Ophthalmology
NPI 1366458275
2551 COMPASS RD STE 125
Glenview, IL 60026
(847) 834-0390
✔ PECOS25 mi
Natalya Romaniv, MD
Ophthalmology
NPI 1740470301
2929 MCFARLAND RD
Rockford, IL 61107
(815) 654-2020
✔ PECOS37 mi
Michael De Guzman
Ophthalmology
NPI 1003278862
171 ASHLEY AVE
Charleston, SC 29425
(843) 792-1414
✔ PECOS789 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 Simpson Eye Physicians & Surgeons PLLC's NPI number?

The NPI number for Simpson Eye Physicians & Surgeons PLLC is 1821864760. It was assigned to this organization in the NPPES registry on December 1, 2023.

Where is Simpson Eye Physicians & Surgeons PLLC located?

Simpson Eye Physicians & Surgeons PLLC is located at 650 Spring Hill Ring Rd Ste 2020, West Dundee, IL 60118. The listed phone number is (847) 426-0227.

What is Simpson Eye Physicians & Surgeons PLLC's specialty?

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

Is Simpson Eye Physicians & Surgeons PLLC enrolled in Medicare?

Yes. Simpson Eye Physicians & Surgeons PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Simpson Eye Physicians & Surgeons PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians, all in Ophthalmology, reassign their Medicare billing to Simpson Eye Physicians & Surgeons PLLC. 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. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Simpson Eye Physicians & Surgeons PLLC was last updated on December 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.