Quick answers
- Which hospitals does William O. Harris Iii work at?
- Medicare's official clinician data lists William O. Harris Iii at 4 hospitals: Riverside Doctors' Hospital of Williamsburg, Riverside Regional Medical Center, Riverside Walter Reed Hospital and Sentara Careplex Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William O. Harris Iii see patients?
- Medicare's clinician data lists 1 practice location in Newport News, VA. Call before your visit to confirm the address.
- What is William O. Harris Iii's specialty?
- Medicare lists Interventional Cardiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does William O. Harris Iii accept Medicare assignment?
- Yes. Medicare's clinician data says William O. Harris Iii 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 William O. Harris Iii?
- (757) 873-0360, as listed in official Medicare / NPI Registry data.
- What is William O. Harris Iii's NPI number?
- 1952397630. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William O. Harris Iii works
Medicare's Facility Affiliation Data lists William O. Harris Iii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Riverside Doctors' Hospital of WilliamsburgWilliamsburg, VA · Acute Care Hospital · CCN 490143
- Riverside Regional Medical CenterNewport News, VA · Acute Care Hospital · CCN 490052
- Riverside Walter Reed HospitalGloucester, VA · Acute Care Hospital · CCN 490130
- Sentara Careplex HospitalHampton, VA · Acute Care Hospital · CCN 490093
Practice locations
Addresses where William O. Harris Iii is enrolled with Medicare (CMS data updated 2026-10-02).
- 11803 Jefferson Ave, Suite 110Newport News, VA 23606 (757) 873‑0360
Group practices
Medicare enrollment lists William O. Harris Iii as a member of this group (CMS data updated 2026-10-02).
- Riverside Physician Services Inc797 clinicians in the group
Specialties
Other interventional cardiologists in Newport News
Clinicians with the same Medicare primary specialty in Newport News, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Virginia Commonwealth University, School Of Medicine |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952397630 |
| 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