Quick answers
- Which hospitals does Diaa Osman work at?
- Medicare's official clinician data lists Diaa Osman at 4 hospitals: Baylor Scott & White Medical Center - Round Rock, North Austin Medical Center, St David's Medical Center and St David's South Austin Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Diaa Osman see patients?
- Medicare's clinician data lists 2 practice locations, including Round Rock, TX and Austin, TX. Call before your visit to confirm the address.
- What is Diaa Osman's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine and Medical Oncology.
- Does Diaa Osman accept Medicare assignment?
- Yes. Medicare's clinician data says Diaa Osman 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 Diaa Osman offer telehealth?
- Medicare's clinician data says Diaa Osman offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Diaa Osman?
- (512) 341-8724, as listed in official Medicare / NPI Registry data.
- What is Diaa Osman's NPI number?
- 1689894495. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Diaa Osman works
Medicare's Facility Affiliation Data lists Diaa Osman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Baylor Scott & White Medical Center - Round RockRound Rock, TX · Acute Care Hospital · CCN 670034
- North Austin Medical CenterAustin, TX · Acute Care Hospital · CCN 450809
- St David's Medical CenterAustin, TX · Acute Care Hospital · CCN 450431
- St David's South Austin Medical CenterAustin, TX · Acute Care Hospital · CCN 450713
Practice locations
Addresses where Diaa Osman is enrolled with Medicare (CMS data updated 2026-10-02).
- 2410 Round Rock Ave, Suite 150Round Rock, TX 78681 (512) 341‑8724
- 4101 James Casey St, Suite 100Austin, TX 78745 (512) 447‑2202
Group practices
Medicare enrollment lists Diaa Osman as a member of this group (CMS data updated 2026-10-02).
- Texas Oncology PA1,014 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
- Medical Oncologyalso
Other hematologist-oncologists in Round Rock
Clinicians with the same Medicare primary specialty in Round Rock, TX — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1689894495 |
| 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