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Internal Medicine

Chi Si Choi, MD

Sees patients in Houston, TX · Texas

Summary

Chi Si Choi, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Houston, TX. NPI 1336182294. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Chi Si Choi, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
56Years since medical school (graduated 1970)
MaleGender (as listed)

Quick answers

Where does Chi Si Choi see patients?
Medicare's clinician data lists 1 practice location in Houston, TX. Call before your visit to confirm the address.
What is Chi Si Choi's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Family Practice.
Does Chi Si Choi accept Medicare assignment?
Yes. Medicare's clinician data says Chi Si Choi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Chi Si Choi?
(713) 993-6000, as listed in official Medicare / NPI Registry data.
What is Chi Si Choi's NPI number?
1336182294. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Chi Si Choi is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Houston

Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.

All internal medicine doctors in Houston →

Clinician information

CredentialMD
Graduation year1970
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1336182294
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians