Quick answers
- Which hospitals does Margaret R. Markham work at?
- Medicare's official clinician data lists Margaret R. Markham at 5 hospitals: HCA Houston Healthcare Pearland, Houston Methodist Hospital, Houston Methodist Sugar Land Hospital, Houston Methodist West Hospital and The Woman's Hospital of Texas. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Margaret R. Markham see patients?
- Medicare's clinician data lists 5 practice locations, including Pearland, TX, Angelton, TX and Sugar Land, TX. Call before your visit to confirm the address.
- What is Margaret R. Markham's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Margaret R. Markham accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret R. Markham 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 Margaret R. Markham?
- (713) 436-2920, as listed in official Medicare / NPI Registry data.
- What is Margaret R. Markham's NPI number?
- 1770803967. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Margaret R. Markham works
Medicare's Facility Affiliation Data lists Margaret R. Markham at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- HCA Houston Healthcare PearlandPearland, TX · Acute Care Hospital · CCN 670106
- Houston Methodist HospitalHouston, TX · Acute Care Hospital · CCN 450358
- Houston Methodist Sugar Land HospitalSugar Land, TX · Acute Care Hospital · CCN 450820
- Houston Methodist West HospitalHouston, TX · Acute Care Hospital · CCN 670077
- The Woman's Hospital of TexasHouston, TX · Acute Care Hospital · CCN 450674
Practice locations
Addresses where Margaret R. Markham is enrolled with Medicare (CMS data updated 2026-10-02).
- 10223 Broadway St, EPearland, TX 77584 (713) 436‑2920
- 1135 E CedarAngelton, TX 77515 (979) 849‑8287
- 16552 Southwest FwySugar Land, TX 77479 (281) 242‑0767
- 7500 Fannin St, Suite 400Houston, TX 77054 (713) 795‑1000
- 7915 Cypress Creek PkwyHouston, TX 77070 (281) 890‑1182
Group practices
Medicare enrollment lists Margaret R. Markham as a member of this group (CMS data updated 2026-10-02).
- Hwca, PLLC10 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Pearland
Clinicians with the same Medicare primary specialty in Pearland, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2010 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770803967 |
| 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