LYNN EYE SURGERY CENTER, LLC
NPI 1255472841
Clinic/Center - Ambulatory Surgical in Thousand Oaks, CA

NPI Status: Active since February 08, 2007

Contact Information

2230 LYNN RD STE 106
THOUSAND OAKS, CA
ZIP 91360
Phone: (805) 370-3137
Fax: (805) 370-3242

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  • Organization
  • Clinic/Center
  • Ambulatory Surgical
  • CLIA Number: 05D1032654
  • CLIA Cert. Type: Ambulatory Surgery Center
  • CLIA Exp. Date: 10-14-2026

About LYNN EYE SURGERY CENTER, LLC

This page provides the complete NPI Profile along with additional information for Lynn Eye Surgery Center, Llc, a provider established in Thousand Oaks, California operating as a Clinic/center, focusing in ambulatory surgical . The healthcare provider is registered in the NPI registry with number 1255472841 assigned on February 2007. The practitioner's primary taxonomy code is 261QA1903X. The provider is registered as an organization and their NPI record was last updated March 2026. The provider's . The authorized official of this NPI record is Joel Michael Corwin M.d. (President)

NPI
1255472841
Provider Legal Name
LYNN EYE SURGERY CENTER, LLC
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
2230 LYNN RD STE 106 THOUSAND OAKS, CA 91360
Location Phone
(805) 370-3137
Location Fax
(805) 370-3242
Mailing Address
75 ENTERPRISE ALISO VIEJO, CA 92656
Mailing Phone
(877) 455-9942
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-08-2007
Last Update Date
03-03-2026
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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

Clinic/Center Ambulatory Surgical

Taxonomy Code
261QA1903X
Type
Ambulatory Health Care Facilities

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

JOEL MICHAEL CORWIN M.D.

Authorized Official Title
PRESIDENT
Authorized Official Phone
(805) 370-3137

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.

Complex removal of cataract with insertion of prosthetic lens

This procedure involves removing a cloudy lens (cataract) from your eye and replacing it with a clear, artificial lens. It helps restore vision that has been affected by the cataract. The operation is usually done under local anesthesia.

This service was performed 22 times for 20 patients

Extracapsular removal of cataract with insertion of artificial lens and insertion of drainage device in front chamber of eye

This is a two-part eye procedure. First, a cloudy lens (cataract) is removed from its outer layer and replaced with an artificial lens to improve vision. Second, a drainage device is inserted into the front part of the eye to manage fluid levels, preventing pressure build-up.

This service was performed 26 times for 17 patients

Removal of cataract with insertion of prosthetic lens

This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.

This service was performed 698 times for 508 patients

Removal of excessive skin and fat of upper eyelid

This procedure, also known as upper eyelid surgery, is performed to remove excess skin and fat from the upper eyelid. It can help improve vision if heavy eyelids hinder it, and can also enhance the appearance of the eyes. It's a common, safe procedure.

This service was performed 39 times for 37 patients

Removal of recurring cataract in lens capsule using a laser

This procedure, known as YAG laser capsulotomy, treats cloudiness in the lens capsule following cataract surgery. A laser is used to create a small hole in the cloudy capsule, allowing light to pass through and restore clear vision. It's a quick, painless procedure.

This service was performed 104 times for 88 patients

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
05D1032654
Facility Type
Ambulatory Surgery Center
Certificate Effective Date
October 15, 2024
Certificate Expiration Date
October 14, 2026
Laboratory Director
DR. JOEL M. CORWIN
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Lynn Eye Surgery Center, Llc to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1255472841, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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.

Pos 1
1
Doubled → 2
Pos 2
2
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
5
Unchanged
Pos 5
4
Doubled → 8
Pos 6
7
Unchanged
Pos 7
2
Doubled → 4
Pos 8
8
Unchanged
Pos 9
4
Doubled → 8
Check
1
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 5 → 10 → 1 4 → 8 2 → 4 4 → 8

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 2 + 1 + 0 + 5 + 8 + 7 + 4 + 8 + 8 + 24 = 69

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1255472841.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1255472841, enumerated as an "organization" on February 08, 2007.

The provider is located at 2230 LYNN RD STE 106 THOUSAND OAKS, CA 91360 and the phone number is (805) 370-3137.

Clinic/Center with taxonomy code 261QA1903X and a focus in Ambulatory Surgical.