GARY MICHAEL LEACH LAZER LCSW
NPI 1457220485
Social Worker in Stockton, CA

NPI Status: Active since October 29, 2025

Contact Information

510 E MAGNOLIA ST STE 100
STOCKTON, CA
ZIP 95202
Phone: (209) 938-0831
Fax: (209) 938-0849

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  • Individual
  • Male
  • Social Worker

About GARY LEACH LAZER

This page provides the complete NPI Profile along with additional information for Gary Leach Lazer, a provider established in Stockton, California with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1457220485 assigned on October 2025. The practitioner's primary taxonomy code is 104100000X with license number LCSW93379 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1457220485
Provider Name
GARY MICHAEL LEACH LAZER LCSW
Gender
Male
Entity Type
Individual
Location Address
510 E MAGNOLIA ST STE 100 STOCKTON, CA 95202
Location Phone
(209) 938-0831
Location Fax
(209) 938-0849
Mailing Address
7414 SHOREHAM PL STOCKTON, CA 95207
Mailing Phone
(209) 938-0831
Mailing Fax
(209) 938-0849
Is Sole Proprietor?
No
Enumeration Date
10-29-2025
Last Update Date
10-29-2025
Code Navigator

A social worker like Gary Leach Lazer helps patients solve and cope with problems in their everyday lives, diagnoses and treats mental, behavioral, and emotional problems. Social workers help in wide range of situations, such as adopting a child, illness, divorce, or unemployment.

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

Social Worker

Taxonomy Code
104100000X
Type
Behavioral Health & Social Service Providers
License No.
LCSW93379
License State
CA
Taxonomy Description
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

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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 1457220485, 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 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.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
7
Unchanged
Pos 5
2
Doubled → 4
Pos 6
2
Unchanged
Pos 7
0
Doubled → 0
Pos 8
4
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
5
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 5 → 10 → 1 2 → 4 0 → 0 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 4 + 1 + 0 + 7 + 4 + 2 + 0 + 4 + 1 + 6 + 24 = 55

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1457220485.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Marriage & Family Therapist
510 E MAGNOLIA ST STE 100
STOCKTON, CA 95202
Marriage & Family Therapist
510 E MAGNOLIA ST STE 100
STOCKTON, CA 95202
Counselor (Addiction (Substance Use Disorder))
510 E MAGNOLIA ST STE 100
STOCKTON, CA 95202
Counselor (Addiction (Substance Use Disorder))
510 E MAGNOLIA ST STE 100
STOCKTON, CA 95202
Registered Nurse
510 E MAGNOLIA ST STE 100
STOCKTON, CA 95202
Case Manager/Care Coordinator
510 E MAGNOLIA ST STE 100
STOCKTON, CA 95202
Social Worker (Clinical)
510 E MAGNOLIA ST STE 100
STOCKTON, CA 95202

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1457220485, enumerated as an "individual" on October 29, 2025.

The provider is located at 510 E MAGNOLIA ST STE 100 STOCKTON, CA 95202 and the phone number is (209) 938-0831.

Social Worker with taxonomy code 104100000X.