Simpson Eye Physicians & Surgeons PLLC
NPI 1821864760 · Ophthalmology Physician · West Dundee, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Simpson Eye Physicians & Surgeons PLLC is a Ophthalmology Physician organization in West Dundee, IL (NPI 1821864760).
Provider details
- NPI number
- 1821864760
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Michael De Guzman, Owner(847) 343-0175
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (2)
- 730 E Terra Cotta Ave # B2Crystal Lake, IL 60014-3615Phone: (847) 426-0227Fax: (847) 426-0227
- 11620 Algonquin RdHuntley, IL 60142-7175Phone: (847) 426-0227Fax: (847) 426-0227
Registry dates
- Enumerated
- 2023-12-01
- Last updated
- 2023-12-01
- Certified
- 2023-12-01
Frequently asked questions
- What is Simpson Eye Physicians & Surgeons PLLC's NPI number?
- Simpson Eye Physicians & Surgeons PLLC's National Provider Identifier (NPI) is 1821864760, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Simpson Eye Physicians & Surgeons PLLC?
- Simpson Eye Physicians & Surgeons PLLC is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Simpson Eye Physicians & Surgeons PLLC located?
- Simpson Eye Physicians & Surgeons PLLC's practice location on file with NPPES is 650 Spring Hill Ring Rd Ste 2020, West Dundee, IL 60118-1297.
- What is Simpson Eye Physicians & Surgeons PLLC's phone number?
- The practice phone number listed in the NPPES registry for Simpson Eye Physicians & Surgeons PLLC is (847) 426-0227.
- Does Simpson Eye Physicians & Surgeons PLLC accept Medicare?
- Simpson Eye Physicians & Surgeons PLLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Simpson Eye Physicians & Surgeons PLLC?
- The authorized official listed on Simpson Eye Physicians & Surgeons PLLC's NPPES record is Michael De Guzman, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Simpson Eye Physicians & Surgeons PLLC's NPI active?
- Yes — Simpson Eye Physicians & Surgeons PLLC's NPI (1821864760) is active in the NPPES registry as of the last update on 2023-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.