Quick answers
- Does Matthias H. Wiederholz accept Medicare assignment?
- Yes. Medicare's clinician data says Matthias H. Wiederholz 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 Matthias H. Wiederholz see?
- In 2024, CMS data shows 246 Original Medicare patients and 7,813 services for Matthias H. Wiederholz. This counts Original Medicare only and measures volume, not quality.
- What is Matthias H. Wiederholz's NPI number?
- 1336327279. 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 Matthias H. Wiederholz, 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 | 246 |
|---|---|
| Services billed to Medicare | 7,813 |
| Different services or procedures | 91 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg (J7318)1,260 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)512 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)333 services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)138 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)82 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%
- Anxiety33%
- Ischemic heart disease30%
- Diabetes29%
Practice locations
Addresses where Matthias H. Wiederholz is enrolled with Medicare (CMS data updated October 2, 2026).
- 3705 Quakerbridge Rd, Suite 206Hamilton, NJ 08619 (609) 588‑8600
- 4056 Quakerbridge Rd, Suite 112Lawrenceville, NJ 08648 (609) 817‑0052
- 4126 SW Fwy 1700Houston, TX 77027 (346) 217‑1111
- 74 Brick Blvd, Suite 121Brick, NJ 08723 (732) 262‑0700
Group practices
Medicare enrollment lists Matthias H. Wiederholz as a member of this group (CMS data updated October 2, 2026).
- Performance Pain and Sports Medicine PLLC3 clinicians in the group
Specialties
Find other Physical Medicine and Rehabilitation doctors in New Jersey →
Other rehabilitation doctors in Hamilton
Clinicians with the same Medicare primary specialty in Hamilton, NJ — not a recommendation.
Other clinicians in Performance Pain and Sports Medicine PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers R W Johnson Medical School (cam/new Bruns/pisc) |
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1336327279 |
| 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