DR. THOMAS CLYDE WALLACE M.D.
NPI 1801942933
Psychiatry & Neurology - Psychiatry in Pasadena, CA

NPI Status: Active since January 25, 2007

Contact Information

10 CONGRESS ST
SUITE 360
PASADENA, CA
ZIP 91105
Phone: (626) 432-1640
Fax: (626) 793-6381

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Psychiatry

About THOMAS WALLACE

This page provides the complete NPI Profile along with additional information for Thomas Wallace, a provider established in Pasadena, California with a medical specialization in Psychiatry & Neurology, focusing in psychiatry . The healthcare provider is registered in the NPI registry with number 1801942933 assigned on January 2007. The practitioner's primary taxonomy code is 2084P0800X with license number A-43490 (CA). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1801942933
Provider Name
DR. THOMAS CLYDE WALLACE M.D.
Gender
Male
Entity Type
Individual
Location Address
10 CONGRESS ST SUITE 360 PASADENA, CA 91105
Location Phone
(626) 432-1640
Location Fax
(626) 793-6381
Mailing Address
10 CONGRESS ST SUITE 360 PASADENA, CA 91105
Mailing Phone
(626) 432-1640
Mailing Fax
(626) 793-6381
Is Sole Proprietor?
Yes
Enumeration Date
01-25-2007
Last Update Date
03-07-2023
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A psychiatrist like Thomas Wallace are primary mental health physicians diagnose and treat mental illnesses through psychotherapy, psychoanalysis, hospitalization and medication. Psychiatrist help patients find solutions through changes in their behavioral patterns, explorations of experiences, group and family therapy.

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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

Psychiatry & Neurology Psychiatry

Taxonomy Code
2084P0800X
Type
Allopathic & Osteopathic Physicians
License No.
A-43490
License State
CA
Taxonomy Description
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

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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 1801942933, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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.

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 0 + 1 + 1 + 8 + 4 + 4 + 9 + 6 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1801942933.

Other Providers at the Same Location


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

Obstetrics & Gynecology
10 CONGRESS ST, SUITE 400
PASADENA, CA 91105
Obstetrics & Gynecology
10 CONGRESS ST, SUITE 400
PASADENA, CA 91105
Obstetrics & Gynecology
10 CONGRESS ST, SUITE 400
PASADENA, CA 91105
Obstetrics & Gynecology
10 CONGRESS ST, #400
PASADENA, CA 91105
Obstetrics & Gynecology
10 CONGRESS ST, STE 400
PASADENA, CA 91105
Internal Medicine (Nephrology)
10 CONGRESS ST, SUITE 507
PASADENA, CA 91105
Obstetrics & Gynecology
10 CONGRESS ST, SUITE 403
PASADENA, CA 91105
Specialist
10 CONGRESS ST, SUITE 509
PASADENA, CA 91105
Internal Medicine
10 CONGRESS ST, SUITE 208
PASADENA, CA 91105
Ophthalmology
10 CONGRESS ST, #340
PASADENA, CA 91105
Internal Medicine
10 CONGRESS ST, SUITE 202
PASADENA, CA 91105
Internal Medicine
10 CONGRESS ST, SUITE 208
PASADENA, CA 91105
Internal Medicine
10 CONGRESS ST, SUITE 208
PASADENA, CA 91105
Internal Medicine
10 CONGRESS ST, SUITE 208
PASADENA, CA 91105
Internal Medicine
10 CONGRESS ST, SUITE 208
PASADENA, CA 91105
Internal Medicine
10 CONGRESS ST, SUITE 208
PASADENA, CA 91105
Internal Medicine
10 CONGRESS ST, SUITE 208
PASADENA, CA 91105
Psychiatry & Neurology (Neurology)
10 CONGRESS ST, SUITE 505
PASADENA, CA 91105
Neuromusculoskeletal Medicine, Sports Medicine
10 CONGRESS ST, SUITE 103
PASADENA, CA 91105
Obstetrics & Gynecology (Reproductive Endocrinology)
10 CONGRESS ST, SUITE 509
PASADENA, CA 91105

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801942933, enumerated as an "individual" on January 25, 2007.

The provider is located at 10 CONGRESS ST SUITE 360 PASADENA, CA 91105 and the phone number is (626) 432-1640.

Psychiatry & Neurology with taxonomy code 2084P0800X and a focus in Psychiatry.