RICHARD A. SIMMS, D.D.S.
NPI 1669686705
Dentist - Endodontics in Harbor City, CA
NPI Status: Active since May 09, 2007
Contact Information
25617 DODGE AVE
HARBOR CITY, CA
ZIP 90710
Phone: (310) 835-3144
Fax: (310) 830-4966
- Organization
- Dentist
- Endodontics
About RICHARD A. SIMMS, D.D.S.
This page provides the complete NPI Profile along with additional information for Richard A. Simms, D.d.s., a provider established in Harbor City, California operating as a Dentist, focusing in endodontics . The healthcare provider is registered in the NPI registry with number 1669686705 assigned on May 2007. The practitioner's primary taxonomy code is 1223E0200X. The provider is registered as an organization and their NPI record was last updated one year ago. Richard A. Simms, D.d.s. operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's
- NPI
- 1669686705
- Provider Legal Name
- RICHARD A. SIMMS, D.D.S.
- Other Organization Name
- Other Name Type
- (6)
- Entity Type
- Organization
- Location Address
- 25617 DODGE AVE HARBOR CITY, CA 90710
- Location Phone
- (310) 835-3144
- Location Fax
- (310) 830-4966
- Mailing Address
- 25617 DODGE AVE HARBOR CITY, CA 90710
- Mailing Phone
- (310) 835-3144
- Mailing Fax
- (310) 830-4966
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 05-09-2007
- Last Update Date
- 09-11-2025
- Code Navigator
A dentist like Richard A. Simms, D.d.s. 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 Endodontics
- Taxonomy Code
- 1223E0200X
- Type
- Dental Providers
- Taxonomy Description
- The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 1223G0001X | Dental Providers | Dentist | |
| 2 | 1223P0221X | Dental Providers | Dentist | |
| 3 | 1223P0300X | Dental Providers | Dentist | |
| 4 | 1223X0400X | Dental Providers | Dentist |
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
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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 1669686705, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).
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 65 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 7 providers are registered at the same or a nearby location.
HARBOR CITY, CA 90710
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1669686705, enumerated as an "organization" on May 09, 2007.
The provider is located at 25617 DODGE AVE HARBOR CITY, CA 90710 and the phone number is (310) 835-3144.
Dentist with taxonomy code 1223E0200X and a focus in Endodontics.
