ENOCH CHANG MD
NPI 1861079592
Radiology - Radiation Oncology in Houston, TX
NPI Status: Active since March 27, 2021
Contact Information
1515 HOLCOMBE BLVD
HOUSTON, TX
ZIP 77030
Phone: (713) 792-6161
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
NPPES record last updated: July 16, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.
Record update history: Jul 16, 2026, Mar 27, 2021 (2 updates tracked since 2021).
- Individual
- Male
- Radiology
- Radiation Oncology
About ENOCH CHANG
This page provides the complete NPI Profile along with additional information for Enoch Chang, a provider established in Houston, Texas with a medical specialization in Radiology, focusing in radiation oncology . The healthcare provider is registered in the NPI registry with number 1861079592 assigned on March 2021. The practitioner's primary taxonomy code is 2085R0001X with license number V8596 (TX). The provider is registered as an individual and his NPI record was last updated July 2026.
- NPI
- 1861079592
- Provider Name
- ENOCH CHANG MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1515 HOLCOMBE BLVD HOUSTON, TX 77030
- Location Phone
- (713) 792-6161
- Mailing Address
- P O BOX 4439 HOUSTON, TX 77210
- Mailing Phone
- (713) 792-2991
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-27-2021
- Last Update Date
- 07-16-2026
- Code Navigator
Location Map
Secondary Locations
- 1101 Van Ness Ave Ste 1120
San Francisco, CA 94109
(415) 600-3954
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
Radiology Radiation Oncology
- Taxonomy Code
- 2085R0001X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- V8596
- License State
- TX
- Taxonomy Description
- A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
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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 1861079592, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).
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 68 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 19 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
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1861079592, enumerated as an "individual" on March 27, 2021.
The provider is located at 1515 HOLCOMBE BLVD HOUSTON, TX 77030 and the phone number is (713) 792-6161.
Radiology with taxonomy code 2085R0001X and a focus in Radiation Oncology.
