Quick answers
- Does Joseph C. Demarco accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph C. Demarco 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 Joseph C. Demarco see?
- In 2024, CMS data shows 275 Original Medicare patients and 2,813 services for Joseph C. Demarco. This counts Original Medicare only and measures volume, not quality.
- What is Joseph C. Demarco's NPI number?
- 1528329158. 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 Joseph C. Demarco, 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 | 275 |
|---|---|
| Services billed to Medicare | 2,813 |
| Different services or procedures | 125 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)1,751 services
- Review by radiologist of ct guidance for needle placement (77012)60 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)59 services
- Ultrasonic guidance for blood vessel access (76937)39 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)33 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%
- Arthritis48%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)47%
- Ischemic heart disease38%
- Anxiety36%
Hospitals where Joseph C. Demarco works
Medicare's Facility Affiliation Data lists Joseph C. Demarco 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.
- Chilton Medical CenterPompton Plains, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310017
- Good Samaritan Hospital of SuffernSuffern, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330158
- Valley HospitalParamus, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310012
Practice locations
Addresses where Joseph C. Demarco is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 100 Madison AveMorristown, NJ 07960 (973) 971‑5370
- 350 Engle StEnglewood, NJ 07631 (201) 894‑3480
- 572 W Saddle River RdRidgewood, NJ 07450 (201) 634‑5590
- 757 State Route 15 S, Suite 104Lake Hopatcong, NJ 07849 (973) 241‑4844
- 95 Grasslands RdValhalla, NY 10595 (914) 493‑6940
Group practices
Medicare enrollment lists Joseph C. Demarco as a member of these groups (CMS data updated October 2, 2026).
- Westchester Medical Center Advanced Physician Services PC897 clinicians in the group
- Valley Physician Services PC592 clinicians in the group
- Englewood Radiologic Group P A132 clinicians in the group
- Ancillary Services of Practice Associates PA102 clinicians in the group
- Newton Imaging P.A.41 clinicians in the group
Specialties
- Interventional Radiologyprimary
- Diagnostic Radiologyalso
Other interventional radiologists in Morristown
Clinicians with the same Medicare primary specialty in Morristown, NJ — not a recommendation.
Other clinicians in Westchester Medical Center Advanced Physician Services PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | New York College Of Osteo Medicine Of New York Institute Of Technology |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528329158 |
| 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