DR. WILLIAM HOWARD POLONSKY PHD
NPI 1720414014
Psychologist - Health in San Diego, CA
NPI Status: Active since September 19, 2013
Contact Information
5405 OBERLIN DR
SUITE 100
SAN DIEGO, CA
ZIP 92121
Phone: (760) 525-5256
Fax: (760) 942-5780
- Individual
- Male
- Psychologist
- Health
About WILLIAM POLONSKY
This page provides the complete NPI Profile along with additional information for William Polonsky, a provider established in San Diego, California with a medical specialization in Psychologist, focusing in health . The healthcare provider is registered in the NPI registry with number 1720414014 assigned on September 2013. The practitioner's primary taxonomy code is 103TH0004X with license number PSY13764 (CA). The provider is registered as an individual and his NPI record was last updated 13 years ago.
- NPI
- 1720414014
- Provider Name
- DR. WILLIAM HOWARD POLONSKY PHD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 5405 OBERLIN DR SUITE 100 SAN DIEGO, CA 92121
- Location Phone
- (760) 525-5256
- Location Fax
- (760) 942-5780
- Mailing Address
- PO BOX 2148 DEL MAR, CA 92014
- Mailing Phone
- (760) 525-5256
- Mailing Fax
- (760) 942-5780
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 09-19-2013
- Last Update Date
- 09-19-2013
- 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
Psychologist Health
- Taxonomy Code
- 103TH0004X
- Type
- Behavioral Health & Social Service Providers
- License No.
- PSY13764
- License State
- CA
- Taxonomy Description
- A psychologist who specializes in clinical health psychology that investigates and implements clinical services across diverse populations and settings to promote health and well-being and to prevent, treat, and manage illness and disability. Clinical health psychology sees health as the confluence of psychological, social, cultural, and biological factors and applies this understanding to professional activities including:
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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 1720414014, 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 5 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1720414014, enumerated as an "individual" on September 19, 2013.
The provider is located at 5405 OBERLIN DR SUITE 100 SAN DIEGO, CA 92121 and the phone number is (760) 525-5256.
Psychologist with taxonomy code 103TH0004X and a focus in Health.
