DARIN EYE CENTER A MEDICAL
NPI 1558510834
Optometrist in Thousand Oaks, CA
NPI Status: Active since September 11, 2008
Contact Information
425 HAALAND DR STE 103
THOUSAND OAKS, CA
ZIP 91361
Phone: (818) 787-2020
Fax: (818) 787-8652
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Organization
- Optometrist
- Medicare Supplier
- Accepts Medicare Approved Payment
About DARIN EYE CENTER A MEDICAL
This page provides the complete NPI Profile along with additional information for Darin Eye Center A Medical, a provider established in Thousand Oaks, California operating as a Optometrist. The healthcare provider is registered in the NPI registry with number 1558510834 assigned on September 2008. The practitioner's primary taxonomy code is 152W00000X with license number W20551 (CA). The provider is registered as an organization and their NPI record was last updated June 2026. The authorized official of this NPI record is Edward Chung (Administrator)
- NPI
- 1558510834
- Provider Name
- DARIN EYE CENTER A MEDICAL
- Entity Type
- Organization
- Location Address
- 425 HAALAND DR STE 103 THOUSAND OAKS, CA 91361
- Location Phone
- (818) 787-2020
- Location Fax
- (818) 787-8652
- Mailing Address
- 425 HAALAND DR STE 103 THOUSAND OAKS, CA 91361
- Mailing Phone
- (805) 778-1034
- Mailing Fax
- (818) 787-8652
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 09-11-2008
- Last Update Date
- 06-22-2026
- Code Navigator
Darin Eye Center A Medical is a medicare supplier with PTAN 34357598 who accepts Medicare assignment for all durable medical equipment and supplies. The provider accepts the Medicare allowable as payment in full.The supplier carries the following product categories: Prosthetic Lenses: Conventional Eyeglasses or Prosthetic Lenses: Conventional Contact Lenses or Prosthetic Lenses: Prosthetics Cataract Lenses.
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.
- W20551
- License State
- CA
- 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 | 332H00000X | Suppliers | Eyewear Supplier | G044103 (CA) |
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 |
|---|---|---|---|
| W20551 | OTHER (01) | CA | MEDICARE GROUP NUMBER |
Medical Equipment Supplier
The provider carries the following medical supplies product categories:
- PTAN
- 34357598
- Accepts Medicare Assignment
- YES
- Specialities List
- Optometrist, Optician.
- Competitive Bidding
- NO
Supplies List
- Prosthetic Lenses: Conventional Eyeglasses - Conventional Eyeglasses
- Prosthetic Lenses: Conventional Contact Lenses - Conventional Contact Lenses
- Prosthetic Lenses: Prosthetics Cataract Lenses - Cataract Eyeglasses
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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 1558510834, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).
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 56 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 1 provider is registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1558510834, enumerated as an "organization" on September 11, 2008.
The provider is located at 425 HAALAND DR STE 103 THOUSAND OAKS, CA 91361 and the phone number is (818) 787-2020.
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.
