Quick answers
- Which hospitals does John Z. Timmons work at?
- Medicare's official clinician data lists John Z. Timmons at 2 hospitals: Houston Methodist Baytown Hospital and Houston Methodist Clear Lake Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Z. Timmons see patients?
- Medicare's clinician data lists 2 practice locations, including Houston, TX and Baytown, TX. Call before your visit to confirm the address.
- What is John Z. Timmons's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does John Z. Timmons accept Medicare assignment?
- Yes. Medicare's clinician data says John Z. Timmons 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 John Z. Timmons?
- (281) 737-2500, as listed in official Medicare / NPI Registry data.
- What is John Z. Timmons's NPI number?
- 1790365765. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Z. Timmons works
Medicare's Facility Affiliation Data lists John Z. Timmons at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Houston Methodist Baytown HospitalBaytown, TX · Acute Care Hospital · CCN 450424
- Houston Methodist Clear Lake HospitalNassau Bay, TX · Acute Care Hospital · CCN 450709
Practice locations
Addresses where John Z. Timmons is enrolled with Medicare (CMS data updated 2026-10-02).
- 18220 State Hwy 249Houston, TX 77070 (281) 737‑2500
- 4401 Garth RdBaytown, TX 77521 (281) 420‑8600
Group practices
Medicare enrollment lists John Z. Timmons as a member of this group (CMS data updated 2026-10-02).
- Travis County Emergency Physicians PA327 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas At Austin Dell Medical School |
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790365765 |
| 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