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Ophthalmology

Warren M. Klein, MD

Sees patients in Paterson, NJ · Elizabeth, NJ · New Jersey

Summary

Warren M. Klein, MD (Ophthalmology) is enrolled with Medicare at 4 practice locations in Paterson, NJ and Elizabeth, NJ. NPI 1114912342. Source: CMS National Downloadable File, updated 2026-10-02.

Call(973) 278‑7538 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Warren M. Klein, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

4Practice locations
OphthalmologyPrimary specialty
May acceptAccepts Medicare assignment
54Years since medical school (graduated 1972)
Rutgers New Jersey Medical SchoolMedical school
MaleGender (as listed)
Klein and Scannapiego, MD., PAGroup practice (+1 more)

Quick answers

Where does Warren M. Klein see patients?
Medicare's clinician data lists 4 practice locations, including Paterson, NJ and Elizabeth, NJ. Call before your visit to confirm the address.
What is Warren M. Klein's specialty?
Medicare lists Ophthalmology as the primary specialty.
Does Warren M. Klein accept Medicare assignment?
Medicare's clinician data says Warren M. Klein may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is the phone number for Warren M. Klein?
(973) 278-7538, as listed in official Medicare / NPI Registry data.
What is Warren M. Klein's NPI number?
1114912342. 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 Warren M. Klein is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Warren M. Klein as a member of these groups (CMS data updated 2026-10-02).

  • Klein and Scannapiego, MD., PA6 clinicians in the group
  • Paterson Eye Associates2 clinicians in the group

Specialties

Find other Ophthalmology doctors in New Jersey →

Other ophthalmologists in Paterson

Clinicians with the same Medicare primary specialty in Paterson, NJ — not a recommendation.

All ophthalmologists in Paterson →

Clinician information

CredentialMD
Medical schoolRutgers New Jersey Medical School
Graduation year1972
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1114912342
CorrectionsReport 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

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians