CALVIN XIANG TAYLOR MD
NPI 1518752021
Military Health Care Provider in San Antonio, TX

NPI Status: Active since April 14, 2025

Contact Information

3551 ROGER BROKE DR
SAN ANTONIO, TX
ZIP 78234
Phone: (210) 916-0439

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  • Individual
  • Male
  • Military Health Care Provider

About CALVIN TAYLOR

This page provides the complete NPI Profile along with additional information for Calvin Taylor, a provider established in San Antonio, Texas with a medical specialization in Military Health Care Provider. The healthcare provider is registered in the NPI registry with number 1518752021 assigned on April 2025. The practitioner's primary taxonomy code is 171000000X. The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1518752021
Provider Name
CALVIN XIANG TAYLOR MD
Gender
Male
Entity Type
Individual
Location Address
3551 ROGER BROKE DR SAN ANTONIO, TX 78234
Location Phone
(210) 916-0439
Mailing Address
3551 ROGER BROKE DR SAN ANTONIO, TX 78234
Mailing Phone
(210) 916-0439
Is Sole Proprietor?
No
Enumeration Date
04-14-2025
Last Update Date
04-14-2025
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Location Map

Secondary Locations

  • 1100 Wilford Hall Loop
    Jbsa Lackland, TX 78236
    (210) 916-0439

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

Military Health Care Provider

Taxonomy Code
171000000X
Type
Other Service Providers
Taxonomy Description
Active duty military health care providers not otherwise classified who need to be separately identified for operational, clinical, or administrative processes.

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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 1518752021, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 2 + 8 + 1 + 4 + 5 + 4 + 0 + 4 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1518752021.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1518752021, enumerated as an "individual" on April 14, 2025.

The provider is located at 3551 ROGER BROKE DR SAN ANTONIO, TX 78234 and the phone number is (210) 916-0439.

Military Health Care Provider with taxonomy code 171000000X.