OrganizationActive
Karl S. Csiszer, O.D., P.C.
NPI 1740335058 · Optometrist · Sandwich, IL
Karl S. Csiszer, O.D., P.C. is a Optometrist organization in Sandwich, IL (NPI 1740335058).
Provider details
- NPI number
- 1740335058
- Entity type
- Organization
- Primary specialty
- OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- Karl Csiszer, President(815) 786-2020
- License
- 046-006611 (IL)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
1112 E Railroad St
Suite 1
Sandwich, IL 60548-1894
Phone: (815) 786-2020
Fax: (815) 786-6306
Street-level locationGet directions
Mailing address
1112 E Railroad St
Sandwich, IL 60548-1894
Registry dates
- Enumerated
- 2007-01-24
- Last updated
- 2010-03-18
Frequently asked questions
- What is Karl S. Csiszer, O.D., P.C.'s NPI number?
- Karl S. Csiszer, O.D., P.C.'s National Provider Identifier (NPI) is 1740335058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Karl S. Csiszer, O.D., P.C.?
- Karl S. Csiszer, O.D., P.C. is classified in the NPPES registry as Optometrist (Eye and Vision Services Providers).
- Where is Karl S. Csiszer, O.D., P.C. located?
- Karl S. Csiszer, O.D., P.C.'s practice location on file with NPPES is 1112 E Railroad St, Sandwich, IL 60548-1894.
- What is Karl S. Csiszer, O.D., P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Karl S. Csiszer, O.D., P.C. is (815) 786-2020.
- Who is the authorized official for Karl S. Csiszer, O.D., P.C.?
- The authorized official listed on Karl S. Csiszer, O.D., P.C.'s NPPES record is Karl Csiszer, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Karl S. Csiszer, O.D., P.C.'s NPI active?
- Yes — Karl S. Csiszer, O.D., P.C.'s NPI (1740335058) is active in the NPPES registry as of the last update on 2010-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.