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Internal Medicine

James J. O'Connor, MD

Works at hospitals in Manhasset, NY · New York

Summary

James J. O'Connor, MD (Internal Medicine) is listed by Medicare at 1 hospital in Manhasset, NY. NPI 1205800703. 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 James J. O'Connor, 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
47Years since medical school (graduated 1979)
State University Of New York Downstate Medical CenterMedical school
MaleGender (as listed)
North Shore-Lij Medical PCGroup practice

Quick answers

Which hospitals does James J. O'Connor work at?
Medicare's official clinician data lists James J. O'Connor at 1 hospital: North Shore University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does James J. O'Connor see patients?
Medicare's clinician data lists 3 practice locations, including Forest Hills, NY, New Hyde Park, NY and Rockaway Park, NY. Call before your visit to confirm the address.
What is James J. O'Connor's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Geriatric Medicine.
Does James J. O'Connor accept Medicare assignment?
Yes. Medicare's clinician data says James J. O'Connor 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 James J. O'Connor offer telehealth?
Medicare's clinician data says James J. O'Connor offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for James J. O'Connor?
(718) 830-4000, as listed in official Medicare / NPI Registry data.
What is James J. O'Connor's NPI number?
1205800703. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where James J. O'Connor works

Medicare's Facility Affiliation Data lists James J. O'Connor 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 James J. O'Connor is enrolled with Medicare (CMS data updated 2026-10-02).

  • 10201 66th RdForest Hills, NY 11375 (718) 830‑4000
  • 1111 Marcus AveNew Hyde Park, NY 11042
  • 11506 Beach Channel DrRockaway Park, NY 11694

Group practices

Medicare enrollment lists James J. O'Connor as a member of this group (CMS data updated 2026-10-02).

  • North Shore-Lij Medical PC6,440 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Forest Hills

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

All internal medicine doctors in Forest Hills →

Clinician information

CredentialMD
Medical schoolState University Of New York Downstate Medical Center
Graduation year1979
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1205800703
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