Quick answers
- Which hospitals does Charles Yen work at?
- Medicare's official clinician data lists Charles Yen at 5 hospitals: HCA Houston Healthcare Kingwood, HCA Houston Healthcare Northwest, Houston Methodist Willowbrook Hospital, Memorial Hermann - Texas Medical Center and TOPS Surgical Specialty Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Charles Yen see patients?
- Medicare's clinician data lists 1 practice location in Webster, TX. Call before your visit to confirm the address.
- What is Charles Yen's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Medical Oncology.
- Does Charles Yen accept Medicare assignment?
- Yes. Medicare's clinician data says Charles Yen 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 Charles Yen?
- (281) 332-7505, as listed in official Medicare / NPI Registry data.
- What is Charles Yen's NPI number?
- 1215930268. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Charles Yen works
Medicare's Facility Affiliation Data lists Charles Yen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- HCA Houston Healthcare KingwoodKingwood, TX · Acute Care Hospital · CCN 450775
- HCA Houston Healthcare NorthwestHouston, TX · Acute Care Hospital · CCN 450638
- Houston Methodist Willowbrook HospitalHouston, TX · Acute Care Hospital · CCN 450844
- Memorial Hermann - Texas Medical CenterHouston, TX · Acute Care Hospital · CCN 450068
- TOPS Surgical Specialty HospitalHouston, TX · Acute Care Hospital · CCN 450774
Practice locations
Addresses where Charles Yen is enrolled with Medicare (CMS data updated 2026-10-02).
- 501 W Medical Ctr BlvdWebster, TX 77598 (281) 332‑7505
Group practices
Medicare enrollment lists Charles Yen as a member of this group (CMS data updated 2026-10-02).
- Texas Oncology PA1,014 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Medical Oncologyalso
Other hematologist-oncologists in Webster
Clinicians with the same Medicare primary specialty in Webster, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215930268 |
| 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