DR. GUILLERMO BARRERA JR. MD
NPI 1124389275
General Practice in Houston, TX

NPI Status: Active since June 06, 2012

Contact Information

1035 DAIRY ASHFORD RD
SUITE 154
HOUSTON, TX
ZIP 77079
Phone: (713) 589-6400
Fax: (713) 779-9813

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  • Individual
  • Male
  • General Practice

About GUILLERMO BARRERA

This page provides the complete NPI Profile along with additional information for Guillermo Barrera, a primary care provider established in Houston, Texas with a medical specialization in General Practice. The healthcare provider is registered in the NPI registry with number 1124389275 assigned on June 2012. The practitioner's primary taxonomy code is 208D00000X with license number 06597181 (ZZ). The provider is registered as an individual and his NPI record was last updated 9 years ago.

NPI
1124389275
Provider Name
DR. GUILLERMO BARRERA JR. MD
Gender
Male
Entity Type
Individual
Location Address
1035 DAIRY ASHFORD RD SUITE 154 HOUSTON, TX 77079
Location Phone
(713) 589-6400
Location Fax
(713) 779-9813
Mailing Address
1035 DAIRY ASHFORD RD SUITE 154 HOUSTON, TX 77079
Mailing Phone
(713) 589-6400
Mailing Fax
(713) 779-9813
Is Sole Proprietor?
Yes
Enumeration Date
06-06-2012
Last Update Date
01-13-2017
Code Navigator

A primary care provider (PCP) like Guillermo Barrera sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

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

General Practice

Taxonomy Code
208D00000X
Type
Allopathic & Osteopathic Physicians
License No.
06597181
License State
ZZ
Taxonomy Description
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

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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 1124389275, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
2
Doubled → 4
Pos 4
4
Unchanged
Pos 5
3
Doubled → 6
Pos 6
8
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
2
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
5
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 2 → 4 3 → 6 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 4 + 4 + 6 + 8 + 1 + 8 + 2 + 1 + 4 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1124389275.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Chiropractor
1035 DAIRY ASHFORD RD, SUITE 125
HOUSTON, TX 77079

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1124389275, enumerated as an "individual" on June 06, 2012.

The provider is located at 1035 DAIRY ASHFORD RD SUITE 154 HOUSTON, TX 77079 and the phone number is (713) 589-6400.

General Practice with taxonomy code 208D00000X.