Quick answers
- Where does Calvin J. Sims see patients?
- Medicare's clinician data lists 2 practice locations, including Lawrenceville, GA and Atlanta, GA. Call before your visit to confirm the address.
- What is Calvin J. Sims's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Calvin J. Sims accept Medicare assignment?
- Yes. Medicare's clinician data says Calvin J. Sims 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 Calvin J. Sims?
- (678) 381-2020, as listed in official Medicare / NPI Registry data.
- What is Calvin J. Sims's NPI number?
- 1811399330. 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 Calvin J. Sims is enrolled with Medicare (CMS data updated 2026-10-02).
- 1250 Scenic Hwy, Suite 1700Lawrenceville, GA 30045 (678) 381‑2020
- 5671 Peachtree Dunwoody Road, Suite 63Atlanta, GA 30342 (678) 381‑2020
Group practices
Medicare enrollment lists Calvin J. Sims as a member of this group (CMS data updated 2026-10-02).
- Milan Eye LLC21 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Lawrenceville
Clinicians with the same Medicare primary specialty in Lawrenceville, GA — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811399330 |
| 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