Quick answers
- Does Jeremiah D. Nieves accept Medicare assignment?
- Yes. Medicare's clinician data says Jeremiah D. Nieves 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 Jeremiah D. Nieves see?
- In 2024, CMS data shows 235 Original Medicare patients and 1,349 services for Jeremiah D. Nieves. This counts Original Medicare only and measures volume, not quality.
- What is Jeremiah D. Nieves's NPI number?
- 1285893578. 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 Jeremiah D. Nieves, 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 | 235 |
|---|---|
| Services billed to Medicare | 1,349 |
| Different services or procedures | 7 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,044 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)99 services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)85 services
- Hospital discharge day management, more than 30 minutes (99239)77 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)21 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%
- Arthritis64%
- Ischemic heart disease49%
- Diabetes47%
- Stroke or mini-stroke47%
Hospitals where Jeremiah D. Nieves works
Medicare's Facility Affiliation Data lists Jeremiah D. Nieves 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.
- Cooperman Barnabas Medical CenterLivingston, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310076
- Morristown Medical CenterMorristown, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310015
- Mount Sinai HospitalNew York, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330024
- New York-Presbyterian HospitalNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330101
- Overlook Medical CenterSummit, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310051
Practice locations
Addresses where Jeremiah D. Nieves is enrolled with Medicare (CMS data updated October 2, 2026).
- 1199 Pleasant Valley WayWest Orange, NJ 07052 (973) 731‑3600
Group practices
Medicare enrollment lists Jeremiah D. Nieves as a member of this group (CMS data updated October 2, 2026).
- Kessler Professional Services LLC42 clinicians in the group
Specialties
Find other Physical Medicine and Rehabilitation doctors in New Jersey →
Other rehabilitation doctors in West Orange
Clinicians with the same Medicare primary specialty in West Orange, NJ — not a recommendation.
Other clinicians in Kessler Professional Services LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285893578 |
| 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