Quick answers
- Where does Cullen D. Ryburn see patients?
- Medicare's clinician data lists 2 practice locations, including Billings, MT and Loveland, CO. Call before your visit to confirm the address.
- What is Cullen D. Ryburn's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Cullen D. Ryburn accept Medicare assignment?
- Yes. Medicare's clinician data says Cullen D. Ryburn 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 Cullen D. Ryburn?
- (406) 294-1994, as listed in official Medicare / NPI Registry data.
- What is Cullen D. Ryburn's NPI number?
- 1679950976. 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 Cullen D. Ryburn is enrolled with Medicare (CMS data updated 2026-10-02).
- 1747 Poly DrBillings, MT 59102 (406) 294‑1994
- 2975 Ginnala Dr, Suite 120Loveland, CO 80538 (970) 775‑5453
Group practices
Medicare enrollment lists Cullen D. Ryburn as a member of this group (CMS data updated 2026-10-02).
- Vance Thompson Vision Clinic Prof LLC45 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Billings
Clinicians with the same Medicare primary specialty in Billings, MT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Paul L Foster School Of Medicine, Texas Tech Univ |
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679950976 |
| 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