Quick answers
- Does Regis P. Phelan accept Medicare assignment?
- Yes. Medicare's clinician data says Regis P. Phelan 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 Regis P. Phelan see?
- In 2024, CMS data shows 565 Original Medicare patients and 3,735 services for Regis P. Phelan. This counts Original Medicare only and measures volume, not quality.
- What is Regis P. Phelan's NPI number?
- 1144537093. 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 Regis P. Phelan, 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 | 565 |
|---|---|
| Services billed to Medicare | 3,735 |
| Different services or procedures | 43 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg (J7329)1,100 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)1,022 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)663 services
- Aspiration and/or injection of fluid from large joint (20610)326 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)113 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%
- Arthritis75%
- Diabetes32%
- Ischemic heart disease31%
- Depression26%
Hospitals where Regis P. Phelan works
Medicare's Facility Affiliation Data lists Regis P. Phelan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Christiana HospitalNewark, DE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 080001
Practice locations
Addresses where Regis P. Phelan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1941 Limestone Rd, Suite 101Wilmington, DE 19808 (302) 655‑9494
Group practices
Medicare enrollment lists Regis P. Phelan as a member of this group (CMS data updated October 2, 2026).
- Regional Orthopaedic Associates PA62 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Wilmington
Clinicians with the same Medicare primary specialty in Wilmington, DE — not a recommendation.
Other clinicians in Regional Orthopaedic Associates PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1144537093 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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