DR. JOHNNY DIXON ALVAREZ M.D.
NPI 1386634558
Surgery in Fort Sam Houston, TX

NPI Status: Active since October 27, 2005

Contact Information

3851 ROGER BROOKE DR
BROOKE ARMY MEDICAL CENTER (MCHE-QD)
FORT SAM HOUSTON, TX
ZIP 78234
Phone: (210) 916-1925

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  • Individual
  • Male
  • Surgery

About JOHNNY ALVAREZ

This page provides the complete NPI Profile along with additional information for Johnny Alvarez, a provider established in Fort Sam Houston, Texas with a medical specialization in Surgery. The healthcare provider is registered in the NPI registry with number 1386634558 assigned on October 2005. The practitioner's primary taxonomy code is 208600000X with license number J7411 (TX). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1386634558
Provider Name
DR. JOHNNY DIXON ALVAREZ M.D.
Gender
Male
Entity Type
Individual
Location Address
3851 ROGER BROOKE DR BROOKE ARMY MEDICAL CENTER (MCHE-QD) FORT SAM HOUSTON, TX 78234
Location Phone
(210) 916-1925
Mailing Address
23524 MAJESTIC VW SAN ANTONIO, TX 78258
Mailing Phone
(210) 497-2948
Is Sole Proprietor?
Yes
Enumeration Date
10-27-2005
Last Update Date
07-08-2007
Code Navigator

A surgeon like Johnny Alvarez treats injuries, diseases, and deformities through surgical operations. A surgeon could correct physical deformities, repair bone and tissue, or perform preventive or elective surgeries. Surgeons also examine patients, perform and interpret diagnostic tests, and provide counsel on preventive healthcare.

Location Map

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

Surgery

Taxonomy Code
208600000X
Type
Allopathic & Osteopathic Physicians
License No.
J7411
License State
TX
Taxonomy Description
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

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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 1386634558, 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 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
3
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
6
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
3
Unchanged
Pos 7
4
Doubled → 8
Pos 8
5
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 8 → 16 → 7 6 → 12 → 3 4 → 8 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 6 + 6 + 1 + 2 + 3 + 8 + 5 + 1 + 0 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1386634558.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Internal Medicine
3851 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234
Internal Medicine (Pulmonary Disease)
3851 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234
Physician Assistant
3851 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER
FORT SAM HOUSTON, TX 78234
Pediatrics
3851 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234
Internal Medicine
3851 ROGER BROOKE DR
SAN ANTONIO, TX 78234
Emergency Medicine
3851 ROGER BROOKE DR, DEPT OF PRIMARY CARE MCHE-CM
FORT SAM HOUSTON, TX 78234
Family Medicine
3851 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234
Preventive Medicine (Public Health & General Preventive Medicine)
3851 ROGER BROOKE DR, MCHE-QD/ CREDENTIALS
FORT SAM HOUSTON, TX 78234
Pediatrics
3851 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER
SAN ANTONIO, TX 78234
Pathology (Anatomic Pathology & Clinical Pathology)
3851 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER
FORT SAM HOUSTON, TX 78234
Physician Assistant
3851 ROGER BROOKE DR, MCHE-QD (CREDENTIALS)
FORT SAM HOUSTON, TX 78234
Internal Medicine (Rheumatology)
3851 ROGER BROOKE DR, MCHE-QD (CREDENTIALS)
FORT SAM HOUSTON, TX 78234
Dietitian, Registered
3851 ROGER BROOKE DR, MCHE-QD (CREDENTIALS)
FORT SAM HOUSTON, TX 78234
Preventive Medicine (Preventive Medicine/Occupational Environmental Medicine)
3851 ROGER BROOKE DR, MCHE-QD/CREDENTIALS
FORT SAM HOUSTON, TX 78234
Nurse Practitioner (Family)
3851 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234
Physician Assistant
3851 ROGER BROOKE DR, MCHE-QD/CREDENTIALS
FORT SAM HOUSTON, TX 78234
Physician Assistant (Medical)
3851 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER MCHE-QD/CREDENTIALS
FT SAM HOUSTON, TX 78234
Social Worker (Clinical)
3851 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER MCHE-QD
FORT SAM HOUSTON, TX 78234
Military Health Care Provider
3851 ROGER BROOKE DR, MCHE-QD / CREDENTIALS
FORT SAM HOUSTON, TX 78234

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1386634558, enumerated as an "individual" on October 27, 2005.

The provider is located at 3851 ROGER BROOKE DR BROOKE ARMY MEDICAL CENTER (MCHE-QD) FORT SAM HOUSTON, TX 78234 and the phone number is (210) 916-1925.

Surgery with taxonomy code 208600000X.