GERALD NICHOLAS TAYLOR MD
NPI 1417932534
Preventive Medicine - Occupational Medicine in Fort Sam Houston, TX

NPI Status: Active since December 12, 2005

Contact Information

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX
ZIP 78234
Phone: (210) 916-3400

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  • Individual
  • Male
  • Preventive Medicine
  • Occupational Medicine

About GERALD TAYLOR

This page provides the complete NPI Profile along with additional information for Gerald Taylor, a provider established in Fort Sam Houston, Texas with a medical specialization in Preventive Medicine, focusing in occupational medicine . The healthcare provider is registered in the NPI registry with number 1417932534 assigned on December 2005. The practitioner's primary taxonomy code is 2083X0100X with license number L4748 (TX). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1417932534
Provider Name
GERALD NICHOLAS TAYLOR MD
Gender
Male
Entity Type
Individual
Location Address
3551 ROGER BROOKE DR FORT SAM HOUSTON, TX 78234
Location Phone
(210) 916-3400
Mailing Address
3551 ROGER BROOKE DR FORT SAM HOUSTON, TX 78234
Mailing Phone
(210) 916-3400
Is Sole Proprietor?
No
Enumeration Date
12-12-2005
Last Update Date
06-22-2026
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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

Preventive Medicine Occupational Medicine

Taxonomy Code
2083X0100X
Type
Allopathic & Osteopathic Physicians
License No.
L4748
License State
TX
Taxonomy Description
Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.

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)
1207Q00000XAllopathic & Osteopathic Physicians

Family Medicine

L4748 (TX)
22083A0100XAllopathic & Osteopathic Physicians

Preventive Medicine
Aerospace Medicine

L4748 (TX)
32083C0008XAllopathic & Osteopathic Physicians

Preventive Medicine
Clinical Informatics

L4748 (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 1417932534, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
4
Unchanged
Pos 3
1
Doubled → 2
Pos 4
7
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
3
Unchanged
Pos 7
2
Doubled → 4
Pos 8
5
Unchanged
Pos 9
3
Doubled → 6
Check
4
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 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 + 4 + 2 + 7 + 1 + 8 + 3 + 4 + 5 + 6 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1417932534.

Other Providers at the Same Location


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

Pediatrics
3551 ROGER BROOKE DR, DEPARTMENT OF PEDIATRICS/ADOLESCENT MEDICINE
FORT SAM HOUSTON, TX 78234
Pediatrics (Pediatric Cardiology)
3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234
Pediatrics (Neonatal-Perinatal Medicine)
3551 ROGER BROOKE DR, NEONATOLOGY
FORT SAM HOUSTON, TX 78234
Nurse Practitioner (Primary Care)
3551 ROGER BROOKE DR, DEPARTMENT OF PEDIATRICS/ADOLESCENT MEDICINE
FORT SAM HOUSTON, TX 78234
Student in an Organized Health Care Education/Training Program
3551 ROGER BROOKE DR, MCHE/ME
FORT SAM HOUSTON, TX 78234
Student in an Organized Health Care Education/Training Program
3551 ROGER BROOKE DR, MCHE-QD(CREDS)
FORT SAM HOUSTON, TX 78234
Occupational Therapist
3551 ROGER BROOKE DR, MCHE-QD (CREDS)
FORT SAM HOUSTON, TX 78234
Internal Medicine (Infectious Disease)
3551 ROGER BROOKE DR, MCHE-QD, BLDG 3600
FORT SAM HOUSTON, TX 78234
Urology
3551 ROGER BROOKE DR, MCHE-SDU, BUILDING 3600
SAN ANTONIO, TX 78234
Occupational Therapist
3551 ROGER BROOKE DR
SAN ANTONIO, TX 78234
Occupational Therapist
3551 ROGER BROOKE DR, MCHE-QD (CREDS)
SAN ANTONIO, TX 78234
Internal Medicine (Infectious Disease)
3551 ROGER BROOKE DR, MCHE-MDI
FORT SAM HOUSTON, TX 78234
Physician Assistant
3551 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER
FORT SAM HOUSTON, TX 78234
Hospitalist
3551 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER
FORT SAM HOUSTON, TX 78234
Student in an Organized Health Care Education/Training Program
3551 ROGER BROOKE DR, MCHE/ME
SAN ANTONIO, TX 78234
Student in an Organized Health Care Education/Training Program
3551 ROGER BROOKE DR, MCHE/ME
SAN ANTONIO, TX 78234
Internal Medicine (Endocrinology, Diabetes & Metabolism)
3551 ROGER BROOKE DR, ATTN: MCHE-MDE
FORT SAM HOUSTON, TX 78234
Psychiatry & Neurology (Neuromuscular Medicine)
3551 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER DEPT OF NEUROLOGY
SAN ANTONIO, TX 78234
Physician Assistant (Medical)
3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234
Psychiatry & Neurology (Sleep Medicine)
3551 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER
JBSA FT SAM HOUSTON, TX 78234

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1417932534, enumerated as an "individual" on December 12, 2005.

The provider is located at 3551 ROGER BROOKE DR FORT SAM HOUSTON, TX 78234 and the phone number is (210) 916-3400.

Preventive Medicine with taxonomy code 2083X0100X and a focus in Occupational Medicine.