KHANH V DAO, OD INC.
NPI 1619662616
Optometrist in South San Francisco, CA

NPI Status: Active since April 06, 2023

Contact Information

451 S AIRPORT BLVD
SOUTH SAN FRANCISCO, CA
ZIP 94080
Phone: (650) 589-3128
Fax: (650) 589-3136

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  • Organization
  • Optometrist

About KHANH V DAO, OD INC.

This page provides the complete NPI Profile along with additional information for Khanh V Dao, Od Inc., a provider established in South San Francisco, California operating as a Optometrist. The healthcare provider is registered in the NPI registry with number 1619662616 assigned on April 2023. The practitioner's primary taxonomy code is 152W00000X. The provider is registered as an organization and their NPI record was last updated 3 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Khanh V Dao Od (Owner)

NPI
1619662616
Provider Name
KHANH V DAO, OD INC.
Entity Type
Organization
Location Address
451 S AIRPORT BLVD SOUTH SAN FRANCISCO, CA 94080
Location Phone
(650) 589-3128
Location Fax
(650) 589-3136
Mailing Address
50 LIVINGSTON TERRACE DR SAN BRUNO, CA 94066
Mailing Phone
(714) 686-1731
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
04-06-2023
Last Update Date
04-06-2023
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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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
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.

Group Taxonomy 193400000X MULTIPLE SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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

DR. KHANH V DAO OD

Authorized Official Title
OWNER
Authorized Official Phone
(714) 686-1731

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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 1619662616, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
6
Unchanged
Pos 3
1
Doubled → 2
Pos 4
9
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
6
Unchanged
Pos 7
2
Doubled → 4
Pos 8
6
Unchanged
Pos 9
1
Doubled → 2
Check
6
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 1 → 2 6 → 12 → 3 2 → 4 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 2 + 9 + 1 + 2 + 6 + 4 + 6 + 2 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1619662616.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Pharmacist
451 S AIRPORT BLVD
SOUTH SAN FRANCISCO, CA 94080
Hearing Aid Equipment
451 S AIRPORT BLVD
SOUTH SAN FRANCISCO, CA 94080
Eyewear Supplier
451 S AIRPORT BLVD
SOUTH SAN FRANCISCO, CA 94080
Optometrist
451 S AIRPORT BLVD
SOUTH SAN FRANCISCO, CA 94080
Optometrist
451 S AIRPORT BLVD
SOUTH SAN FRANCISCO, CA 94080
Pharmacist
451 S AIRPORT BLVD
SOUTH SAN FRANCISCO, CA 94080
Optometrist
451 S AIRPORT BLVD
SOUTH SAN FRANCISCO, CA 94080
Pharmacy (Community/Retail Pharmacy)
451 S AIRPORT BLVD
SOUTH SAN FRANCISCO, CA 94080

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1619662616, enumerated as an "organization" on April 06, 2023.

The provider is located at 451 S AIRPORT BLVD SOUTH SAN FRANCISCO, CA 94080 and the phone number is (650) 589-3128.

Optometrist with taxonomy code 152W00000X.