Quick answers
- Which hospitals does William Desimone work at?
- Medicare's official clinician data lists William Desimone at 3 hospitals: Houston Methodist West Hospital, Memorial Hermann Katy Hospital and Memorial Hermann Memorial City Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Desimone see patients?
- Medicare's clinician data lists 2 practice locations, including Katy, TX and Spring, TX. Call before your visit to confirm the address.
- What is William Desimone's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does William Desimone accept Medicare assignment?
- Yes. Medicare's clinician data says William Desimone 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 William Desimone?
- (281) 398-7954, as listed in official Medicare / NPI Registry data.
- What is William Desimone's NPI number?
- 1831501949. 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 Desimone works
Medicare's Facility Affiliation Data lists William Desimone at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Houston Methodist West HospitalHouston, TX · Acute Care Hospital · CCN 670077
- Memorial Hermann Katy HospitalKaty, TX · Acute Care Hospital · CCN 450847
- Memorial Hermann Memorial City HospitalHouston, TX · Acute Care Hospital · CCN 450610
Practice locations
Addresses where William Desimone is enrolled with Medicare (CMS data updated 2026-10-02).
- 21700 Kingsland Blvd, Suite 201Katy, TX 77450 (281) 398‑7954
- 8215 Cypresswood DrSpring, TX 77379 (832) 717‑0877
Group practices
Medicare enrollment lists William Desimone as a member of these groups (CMS data updated 2026-10-02).
- Legacy Healthcare Services Inc3,223 clinicians in the group
- Medical Colleagues of Texas LLP12 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Katy
Clinicians with the same Medicare primary specialty in Katy, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831501949 |
| 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