DR. LEON J. KOSEK O.D.
NPI 1801834080
Optometrist in Frankfort, IL
NPI Status: Active since June 02, 2006
Contact Information
21237 S LAGRANGE RD
FRANKFORT, IL
ZIP 60423
Phone: (815) 469-8541
Fax: (815) 469-8126
- Individual
- Male
- Optometrist
About LEON KOSEK
This page provides the complete NPI Profile along with additional information for Leon Kosek, a provider established in Frankfort, Illinois with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1801834080 assigned on June 2006. The practitioner's primary taxonomy code is 152W00000X with license number 046007472 (IL). The provider is registered as an individual and his NPI record was last updated 15 years ago.
- NPI
- 1801834080
- Provider Name
- DR. LEON J. KOSEK O.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 21237 S LAGRANGE RD FRANKFORT, IL 60423
- Location Phone
- (815) 469-8541
- Location Fax
- (815) 469-8126
- Mailing Address
- 21237 S LAGRANGE RD FRANKFORT, IL 60423
- Mailing Phone
- (815) 469-8541
- Mailing Fax
- (815) 469-8126
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 06-02-2006
- Last Update Date
- 07-06-2011
- Code Navigator
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Optometrist
- Taxonomy Code
- 152W00000X
- Type
- Eye and Vision Services Providers
- License No.
- 046007472
- License State
- IL
- Taxonomy Description
- Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 152W00000X | Eye and Vision Services Providers | Optometrist | 18001974A (IN) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 948760 | MEDICARE PIN (08) | IL | |
| 100086900A | MEDICAID (05) | IN | |
| 473060GGGG | MEDICARE ID-TYPE UNSPECIFIED (04) | IN | |
| 0218400001 | MEDICARE NSC (07) | IL |
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Established patient complete exam of visual system
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Imaging of retina
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.
This service was performed 39 times for 39 patientsThis is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
This service was performed 20 times for 15 patientsThis is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
This service was performed 24 times for 23 patientsImaging 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.
This service was performed 18 times for 16 patientsReviews for DR. LEON J. KOSEK O.D.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1801834080, we treat the final digit (0) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 60 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 2 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1801834080, enumerated as an "individual" on June 02, 2006.
The provider is located at 21237 S LAGRANGE RD FRANKFORT, IL 60423 and the phone number is (815) 469-8541.
Optometrist with taxonomy code 152W00000X.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
