SIX RIVERS OPTICAL, INC.
NPI 1902945751
Technician/Technologist - Optician in Eureka, CA

NPI Status: Active since February 06, 2007

Contact Information

2039 HARRISON AVE
EUREKA, CA
ZIP 95501
Phone: (707) 445-2079
Fax: (707) 445-2070

Get Directions Write a Review

  • Organization
  • Technician/Technologist
  • Optician
  • Medicare Supplier
  • Does Not Accept Medicare Approved Payment

About SIX RIVERS OPTICAL, INC.

This page provides the complete NPI Profile along with additional information for Six Rivers Optical, Inc., a provider established in Eureka, California operating as a Technician/technologist, focusing in optician . The healthcare provider is registered in the NPI registry with number 1902945751 assigned on February 2007. The practitioner's primary taxonomy code is 156FX1800X with license number 2714 (CA). The provider is registered as an organization and their NPI record was last updated one year ago. The authorized official of this NPI record is Martin J Dodd D.o. (Owner)

NPI
1902945751
Provider Name
SIX RIVERS OPTICAL, INC.
Entity Type
Organization
Location Address
2039 HARRISON AVE EUREKA, CA 95501
Location Phone
(707) 445-2079
Location Fax
(707) 445-2070
Mailing Address
2039 HARRISON AVE EUREKA, CA 95501
Mailing Phone
(707) 445-2079
Mailing Fax
(707) 445-2070
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-06-2007
Last Update Date
09-11-2025
Code Navigator



Six Rivers Optical, Inc. is a medicare supplier with PTAN 20660195 who does not accept Medicare assignment for all durable medical equipment and supplies. The provider may not accept the Medicare allowable as payment in full and may collect additional payment directly from the patient, and/or charge more than the Medicare allowable.The supplier carries the following product categories: Prosthetic Lenses: Conventional Eyeglasses or Prosthetic Lenses: Conventional Contact 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

Technician/Technologist Optician

Taxonomy Code
156FX1800X
Type
Eye and Vision Services Providers
License No.
2714
License State
CA
Taxonomy Description
Opticians help fit eyeglasses and contact lenses, following prescriptions from Ophthalmologists and Optometrists. They also help customers decide which eyeglass frame or contact lenses to buy.

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)
1332H00000XSuppliers

Eyewear Supplier

2714 (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.

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

MARTIN J DODD D.O.

Authorized Official Title
OWNER
Authorized Official Phone
(707) 445-2079

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
DX002714FMEDICAID (05)CA 
1448OTHER (01)CAMEDICAL EYE SERVICES

Medical Equipment Supplier

The provider carries the following medical supplies product categories:

PTAN
20660195
Accepts Medicare Assignment
NO
Specialities List
Optician.
Competitive Bidding
NO

Supplies List

  • Prosthetic Lenses: Conventional Eyeglasses - Conventional Eyeglasses
  • Prosthetic Lenses: Conventional Contact Lenses - Conventional Contact Lenses

Reviews for SIX RIVERS OPTICAL, INC.

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1902945751, 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 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
9
Unchanged
Pos 3
0
Doubled → 0
Pos 4
2
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
4
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
7
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 0 → 0 9 → 18 → 9 5 → 10 → 1 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 0 + 2 + 1 + 8 + 4 + 1 + 0 + 7 + 1 + 0 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1902945751.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Technician/Technologist (Optician)
2039 HARRISON AVE
EUREKA, CA 95501

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1902945751, enumerated as an "organization" on February 06, 2007.

The provider is located at 2039 HARRISON AVE EUREKA, CA 95501 and the phone number is (707) 445-2079.

Technician/Technologist with taxonomy code 156FX1800X and a focus in Optician.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.