Quick answers
- Does Matthew B. Mellon accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew B. Mellon 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 B. Mellon see?
- In 2024, CMS data shows 142 Original Medicare patients and 1,419 services for Matthew B. Mellon. This counts Original Medicare only and measures volume, not quality.
- What is Matthew B. Mellon's NPI number?
- 1336302504. 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 B. Mellon, 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 | 142 |
|---|---|
| Services billed to Medicare | 1,419 |
| Different services or procedures | 49 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)174 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)66 services
- Aspiration and/or injection of fluid from large joint (20610)46 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)38 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)29 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%
- Chronic kidney disease42%
- Diabetes37%
- Ischemic heart disease34%
Hospitals where Matthew B. Mellon works
Medicare's Facility Affiliation Data lists Matthew B. Mellon 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.
- Aurora Medical Center - SummitSummit, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520206
- Aurora Medical Center KenoshaKenosha, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520189
- Aurora Memorial Hospital BurlingtonBurlington, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520059
- Aurora St Lukes Medical CenterMilwaukee, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520138
- West Allis Memorial HospitalWest Allis, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520139
Practice locations
Addresses where Matthew B. Mellon is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 12203 N Corporate PkwyMequon, WI 53092
- 2801 W Kinnickinnic River Pkwy, Suite 345Milwaukee, WI 53215 (414) 649‑7900
- 2900 W Oklahoma AveMilwaukee, WI 53215 (414) 649‑6000
- 3003 W Good Hope RdMilwaukee, WI 53209 (414) 352‑3100
- 8901 W Lincoln AveWest Allis, WI 53227 (414) 329‑5950
Group practices
Medicare enrollment lists Matthew B. Mellon as a member of this group (CMS data updated October 2, 2026).
- Aurora Advanced Healthcare, Inc.1,124 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Mequon
Clinicians with the same Medicare primary specialty in Mequon, WI — not a recommendation.
Other clinicians in Aurora Advanced Healthcare, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336302504 |
| 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