Quick answers
- Where does Vishak J. John see patients?
- Medicare's clinician data lists 7 practice locations, including Roanoke, VA, Blacksburg, VA and Hardy, VA. Call before your visit to confirm the address.
- What is Vishak J. John's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Vishak J. John accept Medicare assignment?
- Yes. Medicare's clinician data says Vishak J. John 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 Vishak J. John?
- (540) 855-5100, as listed in official Medicare / NPI Registry data.
- What is Vishak J. John's NPI number?
- 1255515623. 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 Vishak J. John is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1819 Electric Rd, Suite 1aRoanoke, VA 24018 (540) 855‑5100
- 2154 McVitty Rd SWRoanoke, VA 24018 (540) 855‑5100
- 2617 Sheffield Dr, Suite BBlacksburg, VA 24060 (540) 855‑5100
- 280 Westlake Rd, Professional Park Building 2Hardy, VA 24101 (540) 855‑5100
- 609 Northside DrMartinsville, VA 24112 (540) 855‑5100
Group practices
Medicare enrollment lists Vishak J. John as a member of this group (CMS data updated 2026-10-02).
- Vistar Eye Center, Inc31 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Roanoke
Clinicians with the same Medicare primary specialty in Roanoke, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255515623 |
| 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