Quick answers
- Does Jonathan Z. Rosenbluth accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan Z. Rosenbluth 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 Jonathan Z. Rosenbluth see?
- In 2024, CMS data shows 561 Original Medicare patients and 111,843 services for Jonathan Z. Rosenbluth. This counts Original Medicare only and measures volume, not quality.
- What is Jonathan Z. Rosenbluth's NPI number?
- 1134107832. 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 Jonathan Z. Rosenbluth, 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 | 561 |
|---|---|
| Services billed to Medicare | 111,843 |
| Different services or procedures | 115 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, ferric carboxymaltose, 1 mg (J1439)37,500 services
- Injection, pembrolizumab, 1 mg (J9271)15,600 services
- Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg (J1569)4,350 services
- Injection, denosumab, 1 mg (J0897)3,540 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)1,066 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%
- Arthritis46%
- Ischemic heart disease44%
- Diabetes41%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)38%
Hospitals where Jonathan Z. Rosenbluth works
Medicare's Facility Affiliation Data lists Jonathan Z. Rosenbluth 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.
- Robert Wood Johnson University Hospital - SomersetSomerville, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310048
- Robert Wood Johnson University Hospital at HamiltonHamilton, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310110
- Saint Clare's Hospital/ Denville CampusDenville, NJ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 310050
Practice locations
Addresses where Jonathan Z. Rosenbluth is enrolled with Medicare (CMS data updated October 2, 2026).
- 1200 US Hwy 22 E, 3rd FlBridgewater, NJ 08807 (732) 724‑1739
- 300 Littleton Rd, Suite 301Parsippany, NJ 07054 (732) 390‑7750
- 620 Cranbury RdEast Brunswick, NJ 08816 (732) 390‑7750
- 75 Veronica Ave, Suite 201Somerset, NJ 08873 (732) 390‑7750
Group practices
Medicare enrollment lists Jonathan Z. Rosenbluth as a member of this group (CMS data updated October 2, 2026).
- Titan Health Partners LLC99 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Bridgewater
Clinicians with the same Medicare primary specialty in Bridgewater, NJ — not a recommendation.
Other clinicians in Titan Health Partners LLC
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 | 1999 (27 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) | 1134107832 |
| 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