DR. DAVID THOMAS FOSDAHL DDS
NPI 1053460121
Dentist in Castro Valley, CA
NPI Status: Active since January 09, 2007
Contact Information
20600 LAKE CHABOT RD
SUITE 101
CASTRO VALLEY, CA
ZIP 94546
Phone: (510) 582-8399
Fax: (510) 582-3564
- Individual
- Male
- Dentist
About DAVID FOSDAHL
This page provides the complete NPI Profile along with additional information for David Fosdahl, a provider established in Castro Valley, California with a medical specialization in Dentist. The healthcare provider is registered in the NPI registry with number 1053460121 assigned on January 2007. The practitioner's primary taxonomy code is 122300000X with license number 031783 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.
- NPI
- 1053460121
- Provider Name
- DR. DAVID THOMAS FOSDAHL DDS
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 20600 LAKE CHABOT RD SUITE 101 CASTRO VALLEY, CA 94546
- Location Phone
- (510) 582-8399
- Location Fax
- (510) 582-3564
- Mailing Address
- 20600 LAKE CHABOT RD SUITE 101 CASTRO VALLEY, CA 94546
- Mailing Phone
- (510) 582-8399
- Mailing Fax
- (510) 582-3564
- Is Sole Proprietor?
- No
- Enumeration Date
- 01-09-2007
- Last Update Date
- 07-08-2007
- Code Navigator
A dentist like David Fosdahl is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.
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
Dentist
- Taxonomy Code
- 122300000X
- Type
- Dental Providers
- License No.
- 031783
- License State
- CA
- Taxonomy Description
- A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
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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 1053460121, 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 49. The final step is to find the difference between that total and the next multiple of ten (50 - 49 = 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.
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 49 is 50. The difference is the calculated check digit.
Other Providers at the Same Location
The following 4 providers are registered at the same or a nearby location.
CASTRO VALLEY, CA 94546
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1053460121, enumerated as an "individual" on January 09, 2007.
The provider is located at 20600 LAKE CHABOT RD SUITE 101 CASTRO VALLEY, CA 94546 and the phone number is (510) 582-8399.
Dentist with taxonomy code 122300000X.
