Quick answers
- Which hospitals does Katherine Diase work at?
- Medicare's official clinician data lists Katherine Diase at 3 hospitals: Houston Methodist Sugar Land Hospital, Memorial Hermann Memorial City Hospital and Memorial Hermann Sugar Land Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Katherine Diase see patients?
- Medicare's clinician data lists 6 practice locations, including Sugar Land, TX and Bellaire, TX. Call before your visit to confirm the address.
- What is Katherine Diase's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Katherine Diase accept Medicare assignment?
- Yes. Medicare's clinician data says Katherine Diase 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 Katherine Diase offer telehealth?
- Medicare's clinician data says Katherine Diase offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Katherine Diase?
- (281) 275-0800, as listed in official Medicare / NPI Registry data.
- What is Katherine Diase's NPI number?
- 1003807801. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Katherine Diase works
Medicare's Facility Affiliation Data lists Katherine Diase 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
Practice locations
Addresses where Katherine Diase is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 16605 Southwest FwySugar Land, TX 77479 (281) 275‑0800
- 16605 Southwest Fwy 400 Mob3, Methodist Family Medicine GroupSugar Land, TX 77479 (281) 275‑0800
- 16605 SW Fwy 410, Methodist Diag Card of HoustonSugar Land, TX 77479 (281) 274‑0148
- 16651 Southwest Fwy, Suite 200Sugar Land, TX 77479 (346) 874‑2060
- 16811 Southwest Fwy, Suite 200Sugar Land, TX 77479 (281) 690‑4678
Group practices
Medicare enrollment lists Katherine Diase as a member of these groups (CMS data updated 2026-10-02).
- TMH Physician Associates PLLC1,690 clinicians in the group
- Houston Methodist Specialty Physicians1,528 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Sugar Land
Clinicians with the same Medicare primary specialty in Sugar Land, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Southwestern Medical School At Dallas |
| Graduation year | 1997 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1003807801 |
| 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