Quick answers
- Where does Henry Janssen see patients?
- Medicare's clinician data lists 2 practice locations, including Lindenhurst, NY and Ridgefield, CT. Call before your visit to confirm the address.
- What is Henry Janssen's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Henry Janssen accept Medicare assignment?
- Yes. Medicare's clinician data says Henry Janssen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Henry Janssen?
- (631) 225-7200, as listed in official Medicare / NPI Registry data.
- What is Henry Janssen's NPI number?
- 1053371765. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Henry Janssen is enrolled with Medicare (CMS data updated 2026-10-02).
- 150 Sunrise Hwy, Suite ELindenhurst, NY 11757 (631) 225‑7200
- 90 Keeler DrRidgefield, CT 06877 (631) 225‑7200
Group practices
Medicare enrollment lists Henry Janssen as a member of this group (CMS data updated 2026-10-02).
- Zwanger and Pesiri Radiology Group LLP93 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Lindenhurst
Clinicians with the same Medicare primary specialty in Lindenhurst, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Florida College Of Medicine |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1053371765 |
| 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 2026-10-02, retrieved 2026-10-29
- 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