Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Alex L Chang, MD
Surgery Physician in Houston, TX · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578820015
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Registry record
Entity type Individual (Type 1)
Name Dr. Alex L Chang
Credential MD
Sex Male
Practice address 6411 Fannin St, Houston, TX, 77030
Phone (713) 704-4000
Enumeration date Apr 23, 2012
Last updated in NPPES Jan 7, 2026
Taxonomy & licenses
204F00000X Transplant Surgery Physician Allopathic & Osteopathic Physicians · License 35.133496 (OH) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Alex Chang practice?
The practice location on file with NPPES is in Houston, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alex Chang?
The National Provider Identifier (NPI) for Alex Chang is 1578820015, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-07.