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Internal Medicine

Karan Josan, MD

Works at hospitals in West Islip, NY · Patchogue, NY · Bay Shore, NY · New York

Summary

Karan Josan, MD (Internal Medicine) is listed by Medicare at 3 hospitals in West Islip, NY, Patchogue, NY and Bay Shore, NY. NPI 1124491717. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Karan Josan, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
18Years since medical school (graduated 2008)
MaleGender (as listed)
North Shore Hematology Oncology Associates PCGroup practice

Quick answers

Which hospitals does Karan Josan work at?
Medicare's official clinician data lists Karan Josan at 3 hospitals: Good Samaritan Hospital Medical Center, Long Island Community Hospital and Ns/Lij HS Southside Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Karan Josan see patients?
Medicare's clinician data lists 2 practice locations, including Patchogue, NY and Riverhead, NY. Call before your visit to confirm the address.
What is Karan Josan's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Karan Josan accept Medicare assignment?
Yes. Medicare's clinician data says Karan Josan 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 Karan Josan offer telehealth?
Medicare's clinician data says Karan Josan offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Karan Josan?
(631) 751-3000, as listed in official Medicare / NPI Registry data.
What is Karan Josan's NPI number?
1124491717. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Karan Josan works

Medicare's Facility Affiliation Data lists Karan Josan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Karan Josan is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Karan Josan as a member of this group (CMS data updated 2026-10-02).

  • North Shore Hematology Oncology Associates PC479 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Patchogue

Clinicians with the same Medicare primary specialty in Patchogue, NY — not a recommendation.

All internal medicine doctors in Patchogue →

Clinician information

CredentialMD
Graduation year2008
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1124491717
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians