Quick answers
- Which hospitals does Abraham Winkelstein work at?
- Medicare's official clinician data lists Abraham Winkelstein at 4 hospitals: Houston Methodist The Woodlands Hospital, Houston Methodist Willowbrook Hospital, Memorial Hermann Northeast Hospital and St. Luke's The Woodlands Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Abraham Winkelstein see patients?
- Medicare's clinician data lists 2 practice locations, including Shenandoah, TX and The Woodland, TX. Call before your visit to confirm the address.
- What is Abraham Winkelstein's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Abraham Winkelstein accept Medicare assignment?
- Yes. Medicare's clinician data says Abraham Winkelstein 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 Abraham Winkelstein?
- (936) 321-0033, as listed in official Medicare / NPI Registry data.
- What is Abraham Winkelstein's NPI number?
- 1548260920. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Abraham Winkelstein works
Medicare's Facility Affiliation Data lists Abraham Winkelstein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Houston Methodist The Woodlands HospitalThe Woodlands, TX · Acute Care Hospital · CCN 670122
- Houston Methodist Willowbrook HospitalHouston, TX · Acute Care Hospital · CCN 450844
- Memorial Hermann Northeast HospitalHumble, TX · Acute Care Hospital · CCN 450684
- St. Luke's The Woodlands HospitalThe Woodlands, TX · Acute Care Hospital · CCN 450862
Practice locations
Addresses where Abraham Winkelstein is enrolled with Medicare (CMS data updated 2026-10-02).
- 111 Vision Park BlvdShenandoah, TX 77384 (936) 321‑0033
- 111 Vision Park Blvd, Suite 150The Woodland, TX 77384
Group practices
Medicare enrollment lists Abraham Winkelstein as a member of this group (CMS data updated 2026-10-02).
- Digestive Specialists of North Harris County PA7 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Shenandoah
Clinicians with the same Medicare primary specialty in Shenandoah, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548260920 |
| 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