MR. GREGORY TRUMAN HOLMAN MSW
NPI 1639407810
Counselor - Mental Health in San Jose, CA

NPI Status: Active since November 25, 2009

Contact Information

2625 ZANKER RD
SAN JOSE, CA
ZIP 95134
Phone: (408) 468-0100

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  • Individual
  • Male
  • Counselor
  • Mental Health

About GREGORY HOLMAN

This page provides the complete NPI Profile along with additional information for Gregory Holman, a provider established in San Jose, California with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1639407810 assigned on November 2009. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and his NPI record was last updated 17 years ago.

NPI
1639407810
Provider Name
MR. GREGORY TRUMAN HOLMAN MSW
Gender
Male
Entity Type
Individual
Location Address
2625 ZANKER RD SAN JOSE, CA 95134
Location Phone
(408) 468-0100
Mailing Address
315 WILDFLOWER PARK LN MOUNTAIN VIEW, CA 94043
Mailing Phone
(650) 224-8347
Is Sole Proprietor?
No
Enumeration Date
11-25-2009
Last Update Date
11-25-2009
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A mental health counselor like Gregory Holman 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.

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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

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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 1639407810, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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
6
Unchanged
Pos 3
3
Doubled → 6
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
0
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
8
Unchanged
Pos 9
1
Doubled → 2
Check
0
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 3 → 6 4 → 8 7 → 14 → 5 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 6 + 9 + 8 + 0 + 1 + 4 + 8 + 2 + 24 = 70

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

The next multiple of ten after 70 is 70. The difference is the calculated check digit.

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1639407810.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Marriage & Family Therapist
2625 ZANKER RD
SAN JOSE, CA 95134
Counselor (Mental Health)
2625 ZANKER RD, 101
SAN JOSE, CA 95134
Marriage & Family Therapist
2625 ZANKER RD
SAN JOSE, CA 95134
Social Worker (Clinical)
2625 ZANKER RD
SAN JOSE, CA 95134
Counselor (Addiction (Substance Use Disorder))
2625 ZANKER RD
SAN JOSE, CA 95134
Marriage & Family Therapist
2625 ZANKER RD
SAN JOSE, CA 95134
Social Worker (Clinical)
2625 ZANKER RD
SAN JOSE, CA 95134
Counselor (Mental Health)
2625 ZANKER RD
SAN JOSE, CA 95134
Counselor (Mental Health)
2625 ZANKER RD
SAN JOSE, CA 95134
Community Health Worker
2625 ZANKER RD
SAN JOSE, CA 95134
Case Manager/Care Coordinator
2625 ZANKER RD
SAN JOSE, CA 95134
Case Manager/Care Coordinator
2625 ZANKER RD
SAN JOSE, CA 95134
Counselor (Mental Health)
2625 ZANKER RD, STE 200
SAN JOSE, CA 95134
Counselor (Mental Health)
2625 ZANKER RD, STE 200
SAN JOSE, CA 95134
Counselor (Mental Health)
2625 ZANKER RD, SUIT 200
SAN JOSE, CA 95134
Counselor (Mental Health)
2625 ZANKER RD, SUITE 200
SAN JOSE, CA 95134
Counselor (Mental Health)
2625 ZANKER RD, ST 200
SAN JOSE, CA 95134
Marriage & Family Therapist
2625 ZANKER RD
SAN JOSE, CA 95134
Counselor (Mental Health)
2625 ZANKER RD
SAN JOSE, CA 95134

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1639407810, enumerated as an "individual" on November 25, 2009.

The provider is located at 2625 ZANKER RD SAN JOSE, CA 95134 and the phone number is (408) 468-0100.

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