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Internal Medicine

Kathy Deng, MD

Works at hospitals in West Islip, NY · New York

Summary

Kathy Deng, MD (Internal Medicine) is listed by Medicare at 1 hospital in West Islip, NY. NPI 1548571359. 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 Kathy Deng, 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
16Years since medical school (graduated 2010)
New York Medical CollegeMedical school
FemaleGender (as listed)
CHS Physician Partners PCGroup practice

Quick answers

Which hospitals does Kathy Deng work at?
Medicare's official clinician data lists Kathy Deng at 1 hospital: Good Samaritan Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Kathy Deng see patients?
Medicare's clinician data lists 1 practice location in Bay Shore, NY. Call before your visit to confirm the address.
What is Kathy Deng's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Hematology/Oncology.
Does Kathy Deng accept Medicare assignment?
Yes. Medicare's clinician data says Kathy Deng 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 Kathy Deng?
(631) 666-6752, as listed in official Medicare / NPI Registry data.
What is Kathy Deng's NPI number?
1548571359. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Kathy Deng works

Medicare's Facility Affiliation Data lists Kathy Deng 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 Kathy Deng is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • CHS Physician Partners PC743 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Bay Shore

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

All internal medicine doctors in Bay Shore →

Clinician information

CredentialMD
Medical schoolNew York Medical College
Graduation year2010
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1548571359
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