Quick answers
- Which hospitals does John W. McMahon work at?
- Medicare's official clinician data lists John W. McMahon at 1 hospital: Chandler Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John W. McMahon see patients?
- Medicare's clinician data lists 2 practice locations, including Chandler, AZ and Globe, AZ. Call before your visit to confirm the address.
- What is John W. McMahon's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does John W. McMahon accept Medicare assignment?
- Yes. Medicare's clinician data says John W. McMahon 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 John W. McMahon?
- (480) 895-9555, as listed in official Medicare / NPI Registry data.
- What is John W. McMahon's NPI number?
- 1417060328. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John W. McMahon works
Medicare's Facility Affiliation Data lists John W. McMahon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chandler Regional Medical CenterChandler, AZ · Acute Care Hospital · CCN 030036
Practice locations
Addresses where John W. McMahon is enrolled with Medicare (CMS data updated 2026-10-02).
- 1950 W Frye Rd, Suite BChandler, AZ 85224 (480) 895‑9555
- 5880 S Hospital DrGlobe, AZ 85501
Group practices
Medicare enrollment lists John W. McMahon as a member of these groups (CMS data updated 2026-10-02).
- Arizona Ob Gyn Affiliates PC123 clinicians in the group
- Cobre Valley Regional Medical Center57 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Chandler
Clinicians with the same Medicare primary specialty in Chandler, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417060328 |
| 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