Quick answers
- Which hospitals does John O. Mason Iii work at?
- Medicare's official clinician data lists John O. Mason Iii at 1 hospital: University of Alabama Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John O. Mason Iii see patients?
- Medicare's clinician data lists 7 practice locations, including Vestavia Hills, AL, Demopolis, AL and Gadsden, AL. Call before your visit to confirm the address.
- What is John O. Mason Iii's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does John O. Mason Iii accept Medicare assignment?
- Yes. Medicare's clinician data says John O. Mason 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 John O. Mason Iii?
- (205) 329-7100, as listed in official Medicare / NPI Registry data.
- What is John O. Mason Iii's NPI number?
- 1336124015. 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 O. Mason Iii works
Medicare's Facility Affiliation Data lists John O. Mason Iii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University of Alabama HospitalBirmingham, AL · Acute Care Hospital · CCN 010033
Practice locations
Addresses where John O. Mason Iii is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1009 Montgomery Hwy, Suite 103Vestavia Hills, AL 35216 (205) 329‑7100
- 1043 US Hwy 80 WDemopolis, AL 36732 (205) 329‑7100
- 1503 Rainbow DrGadsden, AL 35901 (205) 329‑7100
- 2520 5th St NColumbus, MS 39705 (662) 244‑1000
- 302 Oakhill RdJasper, AL 35504 (205) 329‑7100
Group practices
Medicare enrollment lists John O. Mason Iii as a member of this group (CMS data updated 2026-10-02).
- Retina Consultants of Alabama P.C.11 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Vestavia Hills
Clinicians with the same Medicare primary specialty in Vestavia Hills, AL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Alabama School Of Medicine |
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336124015 |
| 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