Quick answers
- Where does William Nassour see patients?
- Medicare's clinician data lists 6 practice locations, including Phoenix, AZ, Glendale, AZ and Goodyear, AZ. Call before your visit to confirm the address.
- What is William Nassour's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does William Nassour accept Medicare assignment?
- Yes. Medicare's clinician data says William Nassour 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 Nassour?
- (602) 839-6040, as listed in official Medicare / NPI Registry data.
- What is William Nassour's NPI number?
- 1104131820. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where William Nassour is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1012 E Willetta StPhoenix, AZ 85006 (602) 839‑6040
- 1111 E McDowell RdPhoenix, AZ 85006 (602) 839‑2000
- 13460 N 67th AveGlendale, AZ 85304 (623) 295‑1190
- 13555 W McDowell Rd, Suite 205Goodyear, AZ 85395 (623) 295‑1190
- 13575 W McDowell RdGoodyear, AZ 85395 (623) 536‑9911
Group practices
Medicare enrollment lists William Nassour as a member of these groups (CMS data updated 2026-10-02).
- BHSM Rehabilitation LLC456 clinicians in the group
- Leading Healthcare PLLC41 clinicians in the group
- Desert Wounds PLLC5 clinicians in the group
- Leading Healthcare Clinic of Goodyear, LLC5 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104131820 |
| 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
- 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