ROBERT N. RYAN, DDS
NPI 1831602689
Clinic/Center - Dental in Chico, CA
NPI Status: Active since November 14, 2017
Contact Information
555 SALEM ST
CHICO, CA
ZIP 95928
Phone: (530) 895-3732
Fax: (530) 895-0905
- Organization
- Clinic/Center
- Dental
About ROBERT N. RYAN, DDS
This page provides the complete NPI Profile along with additional information for Robert N. Ryan, Dds, a provider established in Chico, California operating as a Clinic/center, focusing in dental . The healthcare provider is registered in the NPI registry with number 1831602689 assigned on November 2017. The practitioner's primary taxonomy code is 261QD0000X with license number K0601739 (CA). The provider is registered as an organization and their NPI record was last updated 9 years ago. The authorized official of this NPI record is Robert Norus Ryan Dds (Dentist/owner)
- NPI
- 1831602689
- Provider Name
- ROBERT N. RYAN, DDS
- Entity Type
- Organization
- Location Address
- 555 SALEM ST CHICO, CA 95928
- Location Phone
- (530) 895-3732
- Location Fax
- (530) 895-0905
- Mailing Address
- 555 SALEM ST CHICO, CA 95928
- Mailing Phone
- (530) 895-3732
- Mailing Fax
- (530) 895-0905
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 11-14-2017
- Last Update Date
- 11-14-2017
- 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
Clinic/Center Dental
- Taxonomy Code
- 261QD0000X
- Type
- Ambulatory Health Care Facilities
- License No.
- K0601739
- License State
- CA
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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 1831602689, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).
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 61 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 1 provider is registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1831602689, enumerated as an "organization" on November 14, 2017.
The provider is located at 555 SALEM ST CHICO, CA 95928 and the phone number is (530) 895-3732.
Clinic/Center with taxonomy code 261QD0000X and a focus in Dental.
