Quick answers
- Where does Collin D. Johnston see patients?
- Medicare's clinician data lists 13 practice locations, including Mesa, AZ, Chandler, AZ and Casa Grande, AZ. Call before your visit to confirm the address.
- What is Collin D. Johnston's specialty?
- Medicare lists Vascular Surgery as the primary specialty, and also Family Practice.
- Does Collin D. Johnston accept Medicare assignment?
- Yes. Medicare's clinician data says Collin D. Johnston 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 Collin D. Johnston?
- (480) 807-0130, as listed in official Medicare / NPI Registry data.
- What is Collin D. Johnston's NPI number?
- 1225272289. 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 Collin D. Johnston is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 13; the Medicare profile lists all.
- 1066 N Power Rd, Suite 101Mesa, AZ 85205 (480) 807‑0130
- 1155 W Ocotillo Rd, Suite 4Chandler, AZ 85248 (480) 374‑7400
- 1683 E Florence Blvd, Suite 7Casa Grande, AZ 85122 (520) 876‑0800
- 20236 N John Wayne Pkwy, Suite 100Maricopa, AZ 85139 (520) 518‑7510
- 2080 W Southern Ave, Bldg A1Apache Junction, AZ 85120 (480) 985‑0172
Group practices
Medicare enrollment lists Collin D. Johnston as a member of this group (CMS data updated 2026-10-02).
- Nextcare Arizona I JV LLC287 clinicians in the group
Specialties
- Vascular Surgeryprimary
- Family Practicealso
Other vascular surgeons in Mesa
Clinicians with the same Medicare primary specialty in Mesa, AZ — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Nova Southeastern College Of Osteo Medicine |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225272289 |
| 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