Dr John P O'connor, MD - Medicare Internal Medicine in Calverton, NY

  1. Home
  2. Internal Medicine
  3. NY
  4. Calverton
Dr John P O'connor, MD is a medicare enrolled "Internal Medicine" physician in Calverton, New York. He graduated from medical school in 1997 and has 28 years of diverse experience with area of expertise as Internal Medicine. His current practice location is North Suffolk Medical Care, Pc, 4480 Middle Country Rd, Calverton, New York. You can reach out to his office (for appointments etc.) via phone at (631) 208-2919.

Dr John P O'connor is licensed to practice in New York (license number 219769) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1811917578.

Contact Information

Dr John P O'connor, MD
North Suffolk Medical Care, Pc, 4480 Middle Country Rd,
Calverton, NY 11933-1185
(631) 208-2919
(631) 208-0976

Map and Direction




Physician's Profile

Full NameDr John P O'connor
GenderMale
SpecialityInternal Medicine
Experience28 Years
LocationNorth Suffolk Medical Care, Pc, Calverton, New York
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr John P O'connor graduated from medical school in 1997
  NPI Data:
  • NPI Number: 1811917578
  • Provider Enumeration Date: 07/19/2006
  • Last Update Date: 01/08/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 1254322415
  • Enrollment ID: I20040518001392

Medical Identifiers

Medical identifiers for Dr John P O'connor such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811917578NPI-NPPES
02234682MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 219769 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Peconic Bay Medical CenterRiverhead, NYHospital
Suny/stony Brook University HospitalStony brook, NYHospital
Acadia Center For Nursing And RehabilitationRiverhead, NYNursing home

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr John P O'connor allows following entities to bill medicare on his behalf.
Entity NameNorth Suffolk Medical Care Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114022084
PECOS PAC ID: 1951294784
Enrollment ID: O20040205000617

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr John P O'connor is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr John P O'connor, MD
4480 Middle Country Rd,
Calverton, NY 11933-1185

Ph: (631) 208-2919		Dr John P O'connor, MD
North Suffolk Medical Care, Pc, 4480 Middle Country Rd,
Calverton, NY 11933-1185

Ph: (631) 208-2919

Reviews and Comments


Internal Medicine Doctors in Calverton, NY

Dr. Rohan Jeet Singh, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 525 Jan Way, Calverton, NY 11933
Phone: 631-508-5400    Fax: 631-910-2322
Martin David Podgainy, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 120 Golden Spruce Dr, Calverton, NY 11933
Phone: 631-727-4770    
Dr. Edmond Hakimi, D.O
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 525 Jan Way, Calverton, NY 11933
Phone: 631-508-5400    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.