SHEMUAL TSAI
NPI 1306782669
Pharmacist - Infectious Diseases in Houston, TX

NPI Status: Active since April 28, 2026

Contact Information

6565 FANNIN ST
HOUSTON, TX
ZIP 77030
Phone: (713) 441-5037

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  • Individual
  • Male
  • Pharmacist
  • Infectious Diseases

About SHEMUAL TSAI

This page provides the complete NPI Profile along with additional information for Shemual Tsai, a provider established in Houston, Texas with a medical specialization in Pharmacist, focusing in infectious diseases . The healthcare provider is registered in the NPI registry with number 1306782669 assigned on April 2026. The practitioner's primary taxonomy code is 1835I0206X with license number 72744 (TX). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI
1306782669
Provider Name
SHEMUAL TSAI
Gender
Male
Entity Type
Individual
Location Address
6565 FANNIN ST HOUSTON, TX 77030
Location Phone
(713) 441-5037
Mailing Address
6565 FANNIN ST HOUSTON, TX 77030
Is Sole Proprietor?
No
Enumeration Date
04-28-2026
Last Update Date
04-28-2026
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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

Pharmacist Infectious Diseases

Taxonomy Code
1835I0206X
Type
Pharmacy Service Providers
License No.
72744
License State
TX
Taxonomy Description
A licensed pharmacist who has demonstrated specialized knowledge and skill in the use of microbiology and pharmacology to develop, implement, and monitor drug regimens that incorporate antimicrobials to optimize therapy for patients.

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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 1306782669, 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
3
Unchanged
Pos 3
0
Doubled → 0
Pos 4
6
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
8
Unchanged
Pos 7
2
Doubled → 4
Pos 8
6
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 0 → 0 7 → 14 → 5 2 → 4 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 0 + 6 + 1 + 4 + 8 + 4 + 6 + 1 + 2 + 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 1306782669.

Other Providers at the Same Location


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

Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Clinical Pathology/Laboratory Medicine)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Nurse Practitioner (Acute Care)
6565 FANNIN ST, SUITE B452
HOUSTON, TX 77030
Pharmacist
6565 FANNIN ST, DEPARTMENT OF PHARMACY
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Internal Medicine
6565 FANNIN ST, A601
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Surgery (Plastic and Reconstructive Surgery)
6565 FANNIN ST, D200
HOUSTON, TX 77030

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1306782669, enumerated as an "individual" on April 28, 2026.

The provider is located at 6565 FANNIN ST HOUSTON, TX 77030 and the phone number is (713) 441-5037.

Pharmacist with taxonomy code 1835I0206X and a focus in Infectious Diseases.