DR. BARBARA HULDA LACHAR PH.D.
NPI 1104915628
Psychologist - Health Service in Houston, TX

NPI Status: Active since October 12, 2006

Contact Information

11000 RICHMOND AVE
SUITE 330
HOUSTON, TX
ZIP 77042
Phone: (713) 337-2880
Fax: (713) 974-0870

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  • Individual
  • Female
  • Psychologist
  • Health Service

About BARBARA LACHAR

This page provides the complete NPI Profile along with additional information for Barbara Lachar, a provider established in Houston, Texas with a medical specialization in Psychologist, focusing in health service . The healthcare provider is registered in the NPI registry with number 1104915628 assigned on October 2006. The practitioner's primary taxonomy code is 103TH0100X with license number 4180 (TX). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1104915628
Provider Name
DR. BARBARA HULDA LACHAR PH.D.
Other Name
DR. BARBARA HULDA LEESER PH.D.
Other Name Type
Former Name (1)
Gender
Female
Entity Type
Individual
Location Address
11000 RICHMOND AVE SUITE 330 HOUSTON, TX 77042
Location Phone
(713) 337-2880
Location Fax
(713) 974-0870
Mailing Address
807 KITTIWAKE CT SUGAR LAND, TX 77478
Mailing Phone
(281) 242-3058
Is Sole Proprietor?
Yes
Enumeration Date
10-12-2006
Last Update Date
09-11-2025
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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

Psychologist Health Service

Taxonomy Code
103TH0100X
Type
Behavioral Health & Social Service Providers
License No.
4180
License State
TX
Taxonomy Description
A psychologist, certified/licensed at the independent practice level in his/her state, who is duly trained and experienced in the delivery of direct, preventative, assessment, and therapeutic intervention services to individuals whose growth, adjustment, or functioning is actually impaired or is demonstrably at high risk of impairment (1974).

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1103TC0700XBehavioral Health & Social Service Providers

Psychologist
Clinical

4180 (TX)

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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 1104915628, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

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

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 0 + 4 + 1 + 8 + 1 + 1 + 0 + 6 + 4 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1104915628.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Counselor (Professional)
11000 RICHMOND AVE, STE. 330
HOUSTON, TX 77042
Marriage & Family Therapist
11000 RICHMOND AVE, SUITE 330
HOUSTON, TX 77042
Marriage & Family Therapist
11000 RICHMOND AVE, SUITE #330
HOUSTON, TX 77042
Counselor (Professional)
11000 RICHMOND AVE, SUITE 330
HOUSTON, TX 77042
Psychiatry & Neurology (Psychiatry)
11000 RICHMOND AVE, SUITE 330
HOUSTON, TX 77042

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104915628, enumerated as an "individual" on October 12, 2006.

The provider is located at 11000 RICHMOND AVE SUITE 330 HOUSTON, TX 77042 and the phone number is (713) 337-2880.

Psychologist with taxonomy code 103TH0100X and a focus in Health Service.