MR. WILLIAM JOHN MARTIN III
NPI 1457699159
Counselor - Mental Health in Concord, CA

NPI Status: Active since January 30, 2013

Contact Information

2118 WILLOW PASS RD
SUITE 500
CONCORD, CA
ZIP 94520
Phone: (925) 692-0090
Fax: (925) 692-0091

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  • Individual
  • Male
  • Counselor
  • Mental Health

About WILLIAM MARTIN

This page provides the complete NPI Profile along with additional information for William Martin, a provider established in Concord, California with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1457699159 assigned on January 2013. The practitioner's primary taxonomy code is 101YM0800X with license number 71814 (CA). The provider is registered as an individual and his NPI record was last updated 13 years ago.

NPI
1457699159
Provider Name
MR. WILLIAM JOHN MARTIN III
Gender
Male
Entity Type
Individual
Location Address
2118 WILLOW PASS RD SUITE 500 CONCORD, CA 94520
Location Phone
(925) 692-0090
Location Fax
(925) 692-0091
Mailing Address
2118 WILLOW PASS RD SUITE 500 CONCORD, CA 94520
Mailing Phone
(925) 692-0090
Mailing Fax
(925) 692-0091
Is Sole Proprietor?
Yes
Enumeration Date
01-30-2013
Last Update Date
02-04-2013
Code Navigator

A mental health counselor like William Martin provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

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

Counselor Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers
License No.
71814
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 1457699159, 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.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
7
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
9
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
1
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
9
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 6 → 12 → 3 9 → 18 → 9 5 → 10 → 1

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 + 1 + 2 + 9 + 1 + 8 + 1 + 1 + 0 + 24 = 61

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.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1457699159.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Marriage & Family Therapist
2118 WILLOW PASS RD, SUITE 500
CONCORD, CA 94520
Marriage & Family Therapist
2118 WILLOW PASS RD, STE 500
CONCORD, CA 94520
Marriage & Family Therapist
2118 WILLOW PASS RD, STE 500
CONCORD, CA 94520
Marriage & Family Therapist
2118 WILLOW PASS RD, STE 500
CONCORD, CA 94520
Counselor
2118 WILLOW PASS RD, SUITE 500
CONCORD, CA 94520
Counselor
2118 WILLOW PASS RD, STE 500
CONCORD, CA 94520
Counselor
2118 WILLOW PASS RD, SUITE 500
CONCORD, CA 94520
Counselor
2118 WILLOW PASS RD, 500
CONCORD, CA 94520
Counselor
2118 WILLOW PASS RD, SUITE 500
CONCORD, CA 94520
Marriage & Family Therapist
2118 WILLOW PASS RD, STE 500
CONCORD, CA 94520
Marriage & Family Therapist
2118 WILLOW PASS RD
CONCORD, CA 94520
Social Worker
2118 WILLOW PASS RD, SUITE 500
CONCORD, CA 94520
Counselor
2118 WILLOW PASS RD, STE 500
CONCORD, CA 94520
Counselor
2118 WILLOW PASS RD, SUITE 500
CONCORD, CA 94520
Student in an Organized Health Care Education/Training Program
2118 WILLOW PASS RD, STE 500
CONCORD, CA 94520
Counselor
2118 WILLOW PASS RD, SUITE 500
CONCORD, CA 94520
Counselor
2118 WILLOW PASS RD, STE 500
CONCORD, CA 94520
Counselor
2118 WILLOW PASS RD
CONCORD, CA 94520
Social Worker (Clinical)
2118 WILLOW PASS RD
CONCORD, CA 94520
Counselor (Addiction (Substance Use Disorder))
2118 WILLOW PASS RD
CONCORD, CA 94520

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1457699159, enumerated as an "individual" on January 30, 2013.

The provider is located at 2118 WILLOW PASS RD SUITE 500 CONCORD, CA 94520 and the phone number is (925) 692-0090.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.