Quick answers
- Does Clayton D. Selby accept Medicare assignment?
- Yes. Medicare's clinician data says Clayton D. Selby 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 Clayton D. Selby see?
- In 2024, CMS data shows 242 Original Medicare patients and 1,310 services for Clayton D. Selby. This counts Original Medicare only and measures volume, not quality.
- What is Clayton D. Selby's NPI number?
- 1659529725. 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 Clayton D. Selby, 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 | 242 |
|---|---|
| Services billed to Medicare | 1,310 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)170 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)164 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)152 services
- Aspiration and/or injection of fluid from large joint (20610)150 services
- Hyaluronan or derivative, gel-one, for intra-articular injection, per dose (J7326)132 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).
- Arthritis75%
- High cholesterol67%
- High blood pressure41%
- Ischemic heart disease24%
- Anxiety19%
- Osteoporosis19%
Practice locations
Addresses where Clayton D. Selby is enrolled with Medicare (CMS data updated October 2, 2026).
- 13123 E 16th AveAurora, CO 80045 (720) 777‑1234
- 175 Inverness Dr West, 200 Cu Medicine Steadman Hawkins Ortho and SpEnglewood, CO 80112 (303) 694‑3333
Group practices
Medicare enrollment lists Clayton D. Selby as a member of this group (CMS data updated October 2, 2026).
- University Physicians Incorporated3,215 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Aurora
Clinicians with the same Medicare primary specialty in Aurora, CO — not a recommendation.
Other clinicians in University Physicians Incorporated
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| School | At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa |
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659529725 |
| 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