Quick answers
- Which hospitals does Calvin Natanzon work at?
- Medicare's official clinician data lists Calvin Natanzon at 1 hospital: Hackensack Meridian Mountainside Medical. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Calvin Natanzon see patients?
- Medicare's clinician data lists 2 practice locations, including Berkeley Heights, NJ. Call before your visit to confirm the address.
- What is Calvin Natanzon's specialty?
- Medicare lists Neurology as the primary specialty.
- Does Calvin Natanzon accept Medicare assignment?
- Yes. Medicare's clinician data says Calvin Natanzon 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.
- Does Calvin Natanzon offer telehealth?
- Medicare's clinician data says Calvin Natanzon offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Calvin Natanzon?
- (908) 273-4300, as listed in official Medicare / NPI Registry data.
- What is Calvin Natanzon's NPI number?
- 1548405129. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Calvin Natanzon works
Medicare's Facility Affiliation Data lists Calvin Natanzon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hackensack Meridian Mountainside MedicalMontclair, NJ · Acute Care Hospital · CCN 310054
Practice locations
Addresses where Calvin Natanzon is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Diamond Hill RdBerkeley Heights, NJ 07922 (908) 273‑4300
- 1 Diamond Hill Rd, Summit Medical GroupBerkeley Heights, NJ 07922
Group practices
Medicare enrollment lists Calvin Natanzon as a member of this group (CMS data updated 2026-10-02).
- Summit Medical Group PA1,212 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Berkeley Heights
Clinicians with the same Medicare primary specialty in Berkeley Heights, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1548405129 |
| 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 2026-10-02, retrieved 2026-10-29
- 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