Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Joel Kleinberg, MD

Individual provider Emergency Medicine Physician · NPI 1710564406

Dr. Joel Kleinberg, MD is an Emergency Medicine in Port Jefferson, New York. Graduated from Eastern Virginia Medical School in 2021, 5 years ago. Practices with John T Mather Memorial Hospital, a 180-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
5
Trained at
Eastern Virginia Medical School
Licensed in
NY
In the registry since
2021
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

75 N Country Rd
Port Jefferson, NY 11777-2190
Phone: (631) 473-1320
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 327780 (NY)

Record details

NPI number1710564406
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 27, 2021
Last updated in NPPESOctober 21, 2025
Certification dateOctober 21, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolEASTERN VIRGINIA MEDICAL SCHOOL
Graduated 2021 (5 years in practice)
Group practice John T Mather Memorial Hospital — 180 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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