LEYMAN & LEYMAN, A PROFESSIONAL DENTAL CORPORATION
NPI 1770642563
Clinic/Center - Dental in Long Beach, CA
NPI Status: Active since December 07, 2006
Contact Information
191 POMONA AVE
LONG BEACH, CA
ZIP 90803
Phone: (562) 439-2137
Fax: (562) 434-7090
NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: July 12, 2026.
- Organization
- Clinic/Center
- Dental
About LEYMAN & LEYMAN, A PROFESSIONAL DENTAL CORPORATION
This page provides the complete NPI Profile along with additional information for Leyman & Leyman, A Professional Dental Corporation, a provider established in Long Beach, California operating as a Clinic/center, focusing in dental . The healthcare provider is registered in the NPI registry with number 1770642563 assigned on December 2006. The practitioner's primary taxonomy code is 261QD0000X. The provider is registered as an organization and their NPI record was last updated 6 years ago. The authorized official of this NPI record is Dr. John William Leyman Dds (President)
- NPI
- 1770642563
- Provider Name
- LEYMAN & LEYMAN, A PROFESSIONAL DENTAL CORPORATION
- Entity Type
- Organization
- Location Address
- 191 POMONA AVE LONG BEACH, CA 90803
- Location Phone
- (562) 439-2137
- Location Fax
- (562) 434-7090
- Mailing Address
- 191 POMONA AVE LONG BEACH, CA 90803
- Mailing Phone
- (562) 439-2137
- Mailing Fax
- (562) 434-7090
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 12-07-2006
- Last Update Date
- 08-22-2020
- 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 State
- CA
Reviews for LEYMAN & LEYMAN, A PROFESSIONAL DENTAL CORPORATION
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
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 1770642563, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).
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 57 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 2 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1770642563, enumerated as an "organization" on December 07, 2006.
The provider is located at 191 POMONA AVE LONG BEACH, CA 90803 and the phone number is (562) 439-2137.
Clinic/Center with taxonomy code 261QD0000X and a focus in Dental.
