DR. DENNIS W PHILLIPS DDS
NPI 1336466572
Dentist in Long Beach, CA

NPI Status: Active since April 28, 2010

Contact Information

5963 E SPRING ST
LONG BEACH, CA
ZIP 90808
Phone: (562) 421-8401
Fax: (562) 421-0523

Recently Updated NPI Information
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.

Table of Contents

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Dentist

About DENNIS PHILLIPS

This page provides the complete NPI Profile along with additional information for Dennis Phillips, a provider established in Long Beach, California with a medical specialization in Dentist. The healthcare provider is registered in the NPI registry with number 1336466572 assigned on April 2010. The practitioner's primary taxonomy code is 122300000X with license number 23656 (CA). The provider is registered as an individual and his NPI record was last updated August 2025.

NPI: 1336466572
Provider Name: DR. DENNIS W PHILLIPS DDS
Gender: Male
Entity Type: Individual
Location Address: 5963 E SPRING ST LONG BEACH, CA 90808
Location Phone: (562) 421-8401
Location Fax: (562) 421-0523
Mailing Address: 5963 E SPRING ST LONG BEACH, CA 90808
Mailing Phone: (562) 421-8401
Mailing Fax: (562) 421-0523
Is Sole Proprietor?: Yes
Enumeration Date: 04-28-2010
Last Update Date: 08-10-2025
Code Navigator

A dentist like Dennis Phillips 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.: 23656
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.

NPI Validation Check Digit Calculation

The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1	3	3	6	4	6	6	5	7	2
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2	3	6	6	8	6	12	5	14
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 3 + 6 + 6 + 8 + 6 + 1 + 2 + 5 + 1 + 4 + 24 = 68
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 68 = 2									2

The NPI number 1336466572 is valid because the calculated check digit 2 using the Luhn validation algorithm matches the last digit of the original NPI number.