DR. RICHARD LONDON O.D., M.A.
NPI 1629069547
Optometrist - Vision Therapy in Portland, OR
NPI Status: Active since October 31, 2005
Contact Information
511 SW 10TH AVE
SUITE 500
PORTLAND, OR
ZIP 97205
Phone: (503) 352-2500
- Individual
- Male
- Optometrist
- Vision Therapy
About RICHARD LONDON
This page provides the complete NPI Profile along with additional information for Richard London, a provider established in Portland, Oregon with a medical specialization in Optometrist, focusing in vision therapy . The healthcare provider is registered in the NPI registry with number 1629069547 assigned on October 2005. The practitioner's primary taxonomy code is 152WV0400X with license number 2909T (OR). The provider is registered as an individual and his NPI record was last updated 19 years ago.
- NPI
- 1629069547
- Provider Name
- DR. RICHARD LONDON O.D., M.A.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 511 SW 10TH AVE SUITE 500 PORTLAND, OR 97205
- Location Phone
- (503) 352-2500
- Mailing Address
- 5676 YORKSHIRE CT LAKE OSWEGO, OR 97035
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 10-31-2005
- Last Update Date
- 07-08-2007
- 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 Vision Therapy
- Taxonomy Code
- 152WV0400X
- Type
- Eye and Vision Services Providers
- License No.
- 2909T
- License State
- OR
- Taxonomy Description
- Optometrists who specialize in vision therapy as a treatment process used to improve vision function. It includes a broad range of developmental and rehabilitative treatment programs individually prescribed to remediate specific sensory, motor and/or visual perceptual dysfunctions.
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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 1629069547, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).
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 73 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
PORTLAND, OR 97205
PORTLAND, OR 97205
PORTLAND, OR 97205
PORTLAND, OR 97205
PORTLAND, OR 97205
PORTLAND, OR 97205
PORTLAND, OR 97205
PORTLAND, OR 97205
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1629069547, enumerated as an "individual" on October 31, 2005.
The provider is located at 511 SW 10TH AVE SUITE 500 PORTLAND, OR 97205 and the phone number is (503) 352-2500.
Optometrist with taxonomy code 152WV0400X and a focus in Vision Therapy.
