ROBERT DRUMMOND NELSON DDS
NPI 1619177441
Dentist - Oral and Maxillofacial Surgery in Fullerton, CA
NPI Status: Active since July 19, 2007
Contact Information
100 E VALENCIA MESA DR
STE 305
FULLERTON, CA
ZIP 92835
Phone: (714) 525-1178
- Individual
- Male
- Dentist
- Oral and Maxillofacial Surgery
- CLIA Number: 05D1029810
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 06-21-2027
About ROBERT NELSON
This page provides the complete NPI Profile along with additional information for Robert Nelson, a provider established in Fullerton, California with a medical specialization in Dentist, focusing in oral and maxillofacial surgery . The healthcare provider is registered in the NPI registry with number 1619177441 assigned on July 2007. The practitioner's primary taxonomy code is 1223S0112X with license number 23355 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.
- NPI
- 1619177441
- Provider Name
- ROBERT DRUMMOND NELSON DDS
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 100 E VALENCIA MESA DR STE 305 FULLERTON, CA 92835
- Location Phone
- (714) 525-1178
- Mailing Address
- 2021 PALISADES DR FULLERTON, CA 92831
- Mailing Phone
- (714) 525-1619
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-19-2007
- Last Update Date
- 07-19-2007
- Code Navigator
A dentist like Robert Nelson 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 Oral and Maxillofacial Surgery
- Taxonomy Code
- 1223S0112X
- Type
- Dental Providers
- License No.
- 23355
- License State
- CA
- Taxonomy Description
- An oral and maxillofacial surgery dentist specialized in the diagnosis, surgical and adjunctive treatment of diseases, injuries and defects involving both the functional and esthetic aspects of the hard and soft tissues of the oral and maxillofacial region.
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 05D1029810
- Facility Type
- Physician Office
- Certificate Effective Date
- June 22, 2025
- Certificate Expiration Date
- June 21, 2027
- Laboratory Director
- DR. JENNIFER A. LEDON
- Certificate Type
- Certificate of Compliance
- Certificate Type Description
- This CLIA certificate is issued to Robert Nelson after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements. This type of certificate is issued to laboratories that perform nonwaived (moderate and/or high complexity) testing.
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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 1619177441, 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 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 69 is 70. 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.
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
FULLERTON, CA 92835
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1619177441, enumerated as an "individual" on July 19, 2007.
The provider is located at 100 E VALENCIA MESA DR STE 305 FULLERTON, CA 92835 and the phone number is (714) 525-1178.
Dentist with taxonomy code 1223S0112X and a focus in Oral and Maxillofacial Surgery.
