Quick answers
- Which hospitals does William S. Velasquez work at?
- Medicare's official clinician data lists William S. Velasquez at 4 hospitals: Houston Methodist Sugar Land Hospital, Memorial Hermann Memorial City Hospital, Memorial Hermann Sugar Land Hospital and OakBend Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William S. Velasquez see patients?
- Medicare's clinician data lists 8 practice locations, including Houston, TX, Sugar Land, TX and Humble, TX. Call before your visit to confirm the address.
- What is William S. Velasquez's specialty?
- Medicare lists Medical Oncology as the primary specialty, and also Hematology and Internal Medicine.
- Does William S. Velasquez accept Medicare assignment?
- Yes. Medicare's clinician data says William S. Velasquez 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 William S. Velasquez offer telehealth?
- Medicare's clinician data says William S. Velasquez offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William S. Velasquez?
- (713) 722-9660, as listed in official Medicare / NPI Registry data.
- What is William S. Velasquez's NPI number?
- 1346201175. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William S. Velasquez works
Medicare's Facility Affiliation Data lists William S. Velasquez at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Houston Methodist Sugar Land HospitalSugar Land, TX · Acute Care Hospital · CCN 450820
- Memorial Hermann Memorial City HospitalHouston, TX · Acute Care Hospital · CCN 450610
- Memorial Hermann Sugar Land HospitalSugar Land, TX · Acute Care Hospital · CCN 450848
- OakBend Medical CenterRichmond, TX · Acute Care Hospital · CCN 450330
Practice locations
Addresses where William S. Velasquez is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 10405 Katy Fwy, Suite 120Houston, TX 77024 (713) 722‑9660
- 11920 Astoria BlvdHouston, TX 77089 (281) 481‑6688
- 13215 Dotson Rd, Suite 340Houston, TX 77070 (281) 477‑8600
- 17520 W Grand Pkwy S, Suite 460Sugar Land, TX 77479 (281) 491‑5511
- 18970 N Memorial DrHumble, TX 77338 (346) 362‑1670
Group practices
Medicare enrollment lists William S. Velasquez as a member of these groups (CMS data updated 2026-10-02).
- American Oncology Partners PA391 clinicians in the group
- Oncology Consultants, P. A.34 clinicians in the group
Specialties
- Medical Oncologyprimary
- Hematologyalso
- Internal Medicinealso
Other oncologists in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1968 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1346201175 |
| 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