Johanna Leigh Chan, MD

Gastroenterologist in Houston, Texas · NPI 1679716096

Johanna Chan is one of 225 gastroenterologists practicing in Houston, Texas. Johanna Chan practices with Physicians Referral Service.

Registry record (NPPES)

NPI
1679716096
Type
Type 1 · Individual
Primary taxonomy
Internal Medicine, Gastroenterology · 207RG0100X
Address on file
1515 Holcombe Blvd
Houston, TX 77030-4000
(713) 792-6161
Enumerated
Apr 15, 2009
Record last updated
Oct 10, 2025
License states listed
FL, TX

Medicare (CMS)

Enrollment
Medicare-enrolled in FL, TX
Gastroenterology
Revalidation due
No date set by CMS

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Practice locations

More gastroenterologists in Houston

Updated August 2026. Practice locations and specialty come from the CMS Doctors and Clinicians file, the registry record from NPPES, and enrollment from CMS Medicare enrollment files. NPI records are corrected at the source, through NPPES.