Quick answers
- Does Joseph N. Grizzanti accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph N. Grizzanti 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 N. Grizzanti see?
- In 2024, CMS data shows 390 Original Medicare patients and 3,603 services for Joseph N. Grizzanti. This counts Original Medicare only and measures volume, not quality.
- What is Joseph N. Grizzanti's NPI number?
- 1932107554. 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 N. Grizzanti, 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 | 390 |
|---|---|
| Services billed to Medicare | 3,603 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Test to measure expiratory airflow and volume changes before and after medication administration (94060)849 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)702 services
- Test to measure the level of nitric oxide gas (95012)322 services
- Test to determine lung volumes using gas dilution or washout (94727)314 services
- Test to examine how well the lungs exchange gases (94729)314 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%
- Asthma55%
- Arthritis49%
- Ischemic heart disease49%
- COPD47%
Hospitals where Joseph N. Grizzanti works
Medicare's Facility Affiliation Data lists Joseph N. Grizzanti 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.
- Hackensack University Medical CenterHackensack, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310001
- St Joseph's University Medical Center IncPaterson, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 310019
- Valley HospitalParamus, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310012
Practice locations
Addresses where Joseph N. Grizzanti is enrolled with Medicare (CMS data updated October 2, 2026).
- 85 Harristown Rd, Suite 102Glen Rock, NJ 07452 (201) 670‑9215
Group practices
Medicare enrollment lists Joseph N. Grizzanti as a member of this group (CMS data updated October 2, 2026).
- Sovereign Medical Group LLC19 clinicians in the group
Specialties
- Pulmonary Diseaseprimary
- Allergy/Immunologyalso
Other pulmonologists in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Other clinicians in Sovereign Medical Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Philadelphia College Of Osteopathic Medicine |
| Graduation year | 1976 (50 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932107554 |
| 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