Quick answers
- Which hospitals does Dana Grellhesl work at?
- Medicare's official clinician data lists Dana Grellhesl at 2 hospitals: Memorial Hermann - Texas Medical Center and Townsen Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Dana Grellhesl see patients?
- Medicare's clinician data lists 6 practice locations, including Houston, TX, Humble, TX and Cypress, TX. Call before your visit to confirm the address.
- What is Dana Grellhesl's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Dana Grellhesl accept Medicare assignment?
- Yes. Medicare's clinician data says Dana Grellhesl 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 Dana Grellhesl?
- (281) 929-6100, as listed in official Medicare / NPI Registry data.
- What is Dana Grellhesl's NPI number?
- 1154686046. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Dana Grellhesl works
Medicare's Facility Affiliation Data lists Dana Grellhesl 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
- Townsen Memorial HospitalHumble, TX · Acute Care Hospital · CCN 670266
Practice locations
Addresses where Dana Grellhesl is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 11800 Astoria BlvdHouston, TX 77089 (281) 929‑6100
- 1475 FM 1960 Bypass Rd E, Townsen Memorial HospitalHumble, TX 77338 (281) 369‑9001
- 1635 N Loop W, Greater Houston AnesthesiologyHouston, TX 77008
- 27800 Northwest FwyCypress, TX 77433 (346) 231‑4000
- 6411 Fannin StHouston, TX 77030 (713) 704‑4000
Group practices
Medicare enrollment lists Dana Grellhesl as a member of these groups (CMS data updated 2026-10-02).
- U S Anesthesia Partners of Texas, PA2,752 clinicians in the group
- UT Physicians1,765 clinicians in the group
- Compass Anesthesia Providers, PLLC165 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At Houston |
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154686046 |
| 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