VIANA NHU THAO PHAN
NPI 1619804804
Student in an Organized Health Care Education/Training Program in Houston, TX
NPI Status: Active since May 04, 2026
Contact Information
6400 FANNIN ST STE 1800
HOUSTON, TX
ZIP 77030
Phone: (713) 486-9400
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Student in an Organized Health Care Educ...
About VIANA PHAN
This page provides the complete NPI Profile along with additional information for Viana Phan, a primary care provider established in Houston, Texas operating as a Student In An Organized Health Care Education/training Program. The healthcare provider is registered in the NPI registry with number 1619804804 assigned on May 2026. The practitioner's primary taxonomy code is 390200000X. The provider is registered as an individual and their NPI record was last updated May 2026.
- NPI
- 1619804804
- Provider Name
- VIANA NHU THAO PHAN
- Gender
- Entity Type
- Individual
- Location Address
- 6400 FANNIN ST STE 1800 HOUSTON, TX 77030
- Location Phone
- (713) 486-9400
- Mailing Address
- 6400 FANNIN ST STE 1800 HOUSTON, TX 77030
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 05-04-2026
- Last Update Date
- 05-15-2026
- Code Navigator
A primary care provider (PCP) like Viana Phan 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
Student in an Organized Health Care Education/Training Program
- Taxonomy Code
- 390200000X
- Type
- Student, Health Care
- License State
- TX
- Taxonomy Description
- An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
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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 1619804804, 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
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.
Other Providers at the Same Location
The following 18 providers are registered at the same or a nearby location.
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1619804804, enumerated as an "individual" on May 04, 2026.
The provider is located at 6400 FANNIN ST STE 1800 HOUSTON, TX 77030 and the phone number is (713) 486-9400.
Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
