Quick answers
- Does Christian R. Twamley accept Medicare assignment?
- Yes. Medicare's clinician data says Christian R. Twamley accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Christian R. Twamley see?
- In 2024, CMS data shows 212 Original Medicare patients and 1,257 services for Christian R. Twamley. This counts Original Medicare only and measures volume, not quality.
- What is Christian R. Twamley's NPI number?
- 1144210592. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Christian R. Twamley, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 212 |
|---|---|
| Services billed to Medicare | 1,257 |
| Different services or procedures | 21 |
| Participating Medicare provider | Yes |
| Average age of these patients | 67 |
Most frequent services
- Closure of tear duct opening using plug (68761)345 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)192 services
- Photography of the retina (92250)126 services
- Established patient complete exam of visual system (92014)107 services
- Photography of content of eyes (92285)105 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure73%
- Arthritis44%
- Diabetes32%
- Anxiety30%
- Depression25%
Practice locations
Addresses where Christian R. Twamley is enrolled with Medicare (CMS data updated October 2, 2026).
- 4605 S Cooper StArlington, TX 76017 (817) 557‑9595
Group practices
Medicare enrollment lists Christian R. Twamley as a member of this group (CMS data updated October 2, 2026).
- Vision Expo Group PLLC2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Arlington
Clinicians with the same Medicare primary specialty in Arlington, TX — not a recommendation.
Other clinicians in Vision Expo Group PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | University Of Houston - College Of Optometry |
| Graduation year | 1997 (29 years since optometry school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144210592 |
| 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 October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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