Quick answers
- Where does John M. Lewis see patients?
- Medicare's clinician data lists 2 practice locations, including Mesa, AZ and Phoenix, AZ. Call before your visit to confirm the address.
- What is John M. Lewis's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does John M. Lewis accept Medicare assignment?
- Yes. Medicare's clinician data says John M. Lewis 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 M. Lewis?
- (480) 833-9100, as listed in official Medicare / NPI Registry data.
- What is John M. Lewis's NPI number?
- 1851364814. 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 John M. Lewis is enrolled with Medicare (CMS data updated 2026-10-02).
- 1055 S Stapley DrMesa, AZ 85204 (480) 833‑9100
- 4800 N 22nd St, Suite 120Phoenix, AZ 85016 (602) 955‑1000
Group practices
Medicare enrollment lists John M. Lewis as a member of these groups (CMS data updated 2026-10-02).
- Southwestern Eye Center Ltd116 clinicians in the group
- Barnet Dulaney Perkins Eye Center, PC105 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Mesa
Clinicians with the same Medicare primary specialty in Mesa, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851364814 |
| 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