Quick answers
- Which hospitals does Hayan D. Ibraheem work at?
- Medicare's official clinician data lists Hayan D. Ibraheem at 4 hospitals: Columbus Community Hospital, Memorial Hermann Katy Hospital, NorthBay Medical Center and VHS Harlingen Hospital Company LLC. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Hayan D. Ibraheem see patients?
- Medicare's clinician data lists 5 practice locations, including Vacaville, CA, Fairfield, CA and Harlingen, TX. Call before your visit to confirm the address.
- What is Hayan D. Ibraheem's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Hayan D. Ibraheem accept Medicare assignment?
- Yes. Medicare's clinician data says Hayan D. Ibraheem 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 Hayan D. Ibraheem?
- (707) 624-7000, as listed in official Medicare / NPI Registry data.
- What is Hayan D. Ibraheem's NPI number?
- 1801450127. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Hayan D. Ibraheem works
Medicare's Facility Affiliation Data lists Hayan D. Ibraheem at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Columbus Community HospitalColumbus, TX · Acute Care Hospital · CCN 450370
- Memorial Hermann Katy HospitalKaty, TX · Acute Care Hospital · CCN 450847
- NorthBay Medical CenterFairfield, CA · Acute Care Hospital · CCN 050367
- VHS Harlingen Hospital Company LLCHarlingen, TX · Acute Care Hospital · CCN 450033
Practice locations
Addresses where Hayan D. Ibraheem is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 Nut Tree RdVacaville, CA 95687 (707) 624‑7000
- 1200 B Gale Wilson BlvdFairfield, CA 94533 (707) 429‑3600
- 2101 Pease StHarlingen, TX 78550 (956) 389‑6565
- 23900 Katy FwyKaty, TX 77494 (281) 644‑8111
- 915 Gessner Rd, Suite 100Houston, TX 77024 (713) 242‑2222
Group practices
Medicare enrollment lists Hayan D. Ibraheem as a member of these groups (CMS data updated 2026-10-02).
- Memorial Hermann Medical Group762 clinicians in the group
- BHS Physicians Network, Inc706 clinicians in the group
- NorthBay Physicians Surgery Center, LLC324 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Vacaville
Clinicians with the same Medicare primary specialty in Vacaville, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801450127 |
| 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