DR. FRANCISCO JAVIER DIAZ VIERA MD
NPI 1174180269
Internal Medicine - Cardiovascular Disease in Austin, TX
NPI Status: Active since May 23, 2019
Contact Information
6818 AUSTIN CENTER BLVD STE 205
AUSTIN, TX
ZIP 78731
Phone: (512) 344-0450
Fax: (512) 406-7318
- Individual
- Male
- Internal Medicine
- Cardiovascular Disease
- Accepts Insurance
About FRANCISCO DIAZ VIERA
This page provides the complete NPI Profile along with additional information for Francisco Diaz Viera, an internist established in Austin, Texas with a medical specialization in Internal Medicine, focusing in cardiovascular disease . The healthcare provider is registered in the NPI registry with number 1174180269 assigned on May 2019. The practitioner's primary taxonomy code is 207RC0000X with license number T9901 (TX). The provider is registered as an individual and his NPI record was last updated February 2026.
- NPI
- 1174180269
- Provider Name
- DR. FRANCISCO JAVIER DIAZ VIERA MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 6818 AUSTIN CENTER BLVD STE 205 AUSTIN, TX 78731
- Location Phone
- (512) 344-0450
- Location Fax
- (512) 406-7318
- Mailing Address
- 6210 E HWY 290 AUSTIN, TX 78723
- Mailing Phone
- (512) 483-9596
- Mailing Fax
- (512) 406-7318
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-23-2019
- Last Update Date
- 02-05-2026
- Code Navigator
An internist like Francisco Diaz Viera is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, 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
Internal Medicine Cardiovascular Disease
- Taxonomy Code
- 207RC0000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- T9901
- License State
- TX
- Taxonomy Description
- An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
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) |
|---|---|---|---|---|
| 1 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | 693889 (TX) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Blue Advantage Bronze HMO? 204 - HMO
- Blue Advantage Bronze HMO? 301 - HMO
- Blue Advantage Bronze HMO? Standard - HMO
- Blue Advantage Gold HMO? 206 - HMO
- Blue Advantage Gold HMO? 603 - HMO
- Blue Advantage Gold HMO? Standard - HMO
- Blue Advantage Plus Bronze? 303 - POS
- Blue Advantage Plus Bronze? 305 - POS
- Blue Advantage Plus Bronze? Standard - POS
- Blue Advantage Plus Gold? 203 - POS
- Blue Advantage Plus Gold? 803 - POS
- Blue Advantage Plus Gold? Standard - POS
- Blue Advantage Plus Silver? 202 - POS
- Blue Advantage Plus Silver? 605 - POS
- Blue Advantage Plus Silver? Standard - POS
- Blue Advantage Security HMO? 200 - HMO
- Blue Advantage Silver HMO? 205 - HMO
- Blue Advantage Silver HMO? 801 - HMO
- Blue Advantage Silver HMO? Standard - HMO
- Bronze Classic 4700 - EPO
- Bronze Classic Standard - EPO
- Bronze Elite + PCP Saver Plus - EPO
- Bronze Simple Breathe Easy with Enhanced COPD Benefits - EPO
- Bronze Simple Chronic Care CKM - EPO
- Bronze Simple Diabetes - EPO
- Gold Classic - EPO
- Gold Classic Standard - EPO
- Gold Elite - EPO
- Silver Classic - EPO
- Silver Classic Standard - EPO
- Silver Simple PCP Saver - EPO
- Sendero Health Austin512 Silver / $40 PCP / $75 Specialist / $15 Generic Drugs / $0 Deductible - HMO
- Sendero Health Capital Silver / $40 PCP / $80 Specialist / $20 Generic Drugs - HMO
- Sendero Health Hill Country Gold / $30 PCP / $60 Specialist / $15 Generic Drugs - HMO
- Sendero Health Original Silver / $20 PCP + 2 $0 PCP Visits / $10 Generic Drugs - HMO
- Sendero Health Preferred Bronze / $25 PCP / $75 Specialist / $22 Generic Drugs - HMO
- Sendero Health Quality Care Bronze High Deductible / $50 PCP / $25 Generic Drugs / $100 Specialist - HMO
- Sendero Health Real Gold / $350 Deductible - HMO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
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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 1174180269, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).
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 51 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 12 providers are registered at the same or a nearby location.
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
AUSTIN, TX 78731
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1174180269, enumerated as an "individual" on May 23, 2019.
The provider is located at 6818 AUSTIN CENTER BLVD STE 205 AUSTIN, TX 78731 and the phone number is (512) 344-0450.
Internal Medicine with taxonomy code 207RC0000X and a focus in Cardiovascular Disease.
The provider might be accepting Accepts: Blue Cross and Blue Shield of Texas, Oscar. Please consult your insurance carrier or call the provider to verify.
