Quick answers
- Which hospitals does Mark C. Hwang work at?
- Medicare's official clinician data lists Mark C. Hwang at 1 hospital: Memorial Hermann - Texas Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark C. Hwang see patients?
- Medicare's clinician data lists 1 practice location in Houston, TX. Call before your visit to confirm the address.
- What is Mark C. Hwang's specialty?
- Medicare lists Rheumatology as the primary specialty, and also Internal Medicine.
- Does Mark C. Hwang accept Medicare assignment?
- Yes. Medicare's clinician data says Mark C. Hwang 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.
- Does Mark C. Hwang offer telehealth?
- Medicare's clinician data says Mark C. Hwang offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark C. Hwang?
- (713) 486-3100, as listed in official Medicare / NPI Registry data.
- What is Mark C. Hwang's NPI number?
- 1366798647. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark C. Hwang works
Medicare's Facility Affiliation Data lists Mark C. Hwang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Memorial Hermann - Texas Medical CenterHouston, TX · Acute Care Hospital · CCN 450068
Practice locations
Addresses where Mark C. Hwang is enrolled with Medicare (CMS data updated 2026-10-02).
- 6410 Fannin St, Suite 450Houston, TX 77030 (713) 486‑3100
Group practices
Medicare enrollment lists Mark C. Hwang as a member of this group (CMS data updated 2026-10-02).
- UT Physicians1,765 clinicians in the group
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Saint Louis University School Of Medicine |
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1366798647 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians