Quick answers
- Does Matthew R. Chiapa accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew R. Chiapa 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 Matthew R. Chiapa see?
- In 2024, CMS data shows 357 Original Medicare patients and 737 services for Matthew R. Chiapa. This counts Original Medicare only and measures volume, not quality.
- What is Matthew R. Chiapa's NPI number?
- 1255818225. 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 Matthew R. Chiapa, 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 | 357 |
|---|---|
| Services billed to Medicare | 737 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Closure of tear duct opening using plug (68761)173 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)167 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)146 services
- Established patient complete exam of visual system (92014)59 services
- Imaging of optic nerve (92133)58 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 blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes42%
- Chronic kidney disease29%
- Ischemic heart disease27%
Practice locations
Addresses where Matthew R. Chiapa is enrolled with Medicare (CMS data updated October 2, 2026).
- 6134 W Lake Mead Blvd, Suite E 8Las Vegas, NV 89108 (702) 631‑4144
- 9435 W Russell Rd, Suite 100Las Vegas, NV 89148 (702) 207‑2222
Group practices
Medicare enrollment lists Matthew R. Chiapa as a member of these groups (CMS data updated October 2, 2026).
- Cory T Steed O D Prof Corp2 clinicians in the group
- Icarelasvegas2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Las Vegas
Clinicians with the same Medicare primary specialty in Las Vegas, NV — not a recommendation.
Other clinicians in Cory T Steed O D Prof Corp
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 2018 (8 years since optometry school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255818225 |
| 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