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Internal Medicine

Lisa L. Chan, MD

Works at hospitals in Tomball, TX · Cypress, TX · Houston, TX · Texas

Summary

Lisa L. Chan, MD (Internal Medicine) is listed by Medicare at 5 hospitals in Tomball, TX, Cypress, TX and Houston, TX. NPI 1992860829. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Lisa L. Chan, 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
31Years since medical school (graduated 1995)
University Of Texas Medical School At San AntonioMedical school
FemaleGender (as listed)
St Michael Medical Clinic P AGroup practice

Quick answers

Which hospitals does Lisa L. Chan work at?
Medicare's official clinician data lists Lisa L. Chan at 5 hospitals: HCA Houston Healthcare Tomball, Houston Methodist Cypress Hospital, Houston Methodist Willowbrook Hospital, Memorial Hermann - Texas Medical Center and Memorial Hermann Memorial City Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Lisa L. Chan see patients?
Medicare's clinician data lists 1 practice location in Cypress, TX. Call before your visit to confirm the address.
What is Lisa L. Chan's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Lisa L. Chan accept Medicare assignment?
Yes. Medicare's clinician data says Lisa L. Chan 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 Lisa L. Chan?
(281) 655-5100, as listed in official Medicare / NPI Registry data.
What is Lisa L. Chan's NPI number?
1992860829. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Lisa L. Chan works

Medicare's Facility Affiliation Data lists Lisa L. Chan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Lisa L. Chan is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Lisa L. Chan as a member of this group (CMS data updated 2026-10-02).

  • St Michael Medical Clinic P A3 clinicians in the group

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Cypress

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

All internal medicine doctors in Cypress →

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At San Antonio
Graduation year1995
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1992860829
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians