Dr Leslaw J Gredysa, MD - Medicare Vascular Surgery in Riverhead, NY

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Dr Leslaw J Gredysa, MD is a medicare enrolled "Surgery - Vascular Surgery" physician in Riverhead, New York. He graduated from medical school in 1982 and has 42 years of diverse experience with area of expertise as Vascular Surgery. He is a member of the group practice North Shore - Lij Medical Pc and his current practice location is 31 Main Rd, Suite 2, Riverhead, New York. You can reach out to his office (for appointments etc.) via phone at (631) 369-8539.

Dr Leslaw J Gredysa is licensed to practice in New York (license number 175169) 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 1184729998.

Contact Information

Dr Leslaw J Gredysa, MD
31 Main Rd, Suite 2,
Riverhead, NY 11901
(631) 369-8539
(631) 369-5613

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Physician's Profile

Full NameDr Leslaw J Gredysa
GenderMale
SpecialityVascular Surgery
Experience42 Years
Location31 Main Rd, Riverhead, 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 Leslaw J Gredysa graduated from medical school in 1982
  NPI Data:
  • NPI Number: 1184729998
  • Provider Enumeration Date: 09/14/2006
  • Last Update Date: 11/14/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 6103864178
  • Enrollment ID: I20050421000554

Medical Identifiers

Medical identifiers for Dr Leslaw J Gredysa such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1184729998NPI-NPPES
35085OtherNYVYTRA
01465594MedicaidNY
738310OtherNYAETNA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2086S0129XSurgery - Vascular Surgery 175169 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Suny/stony Brook University HospitalStony brook, NYHospital
Peconic Bay Medical CenterRiverhead, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
North Shore - Lij Medical Pc33757015685120

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 Leslaw J Gredysa allows following entities to bill medicare on his behalf.
Entity NamePeconic Surgical Group, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1811187214
PECOS PAC ID: 9133167109
Enrollment ID: O20050420000640
Entity NameNorth Shore - Lij Medical Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053688572
PECOS PAC ID: 3375701568
Enrollment ID: O20120220000262

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 Leslaw J Gredysa 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 Leslaw J Gredysa, MD
31 Main Rd, Suite 2,
Riverhead, NY 11901

Ph: (631) 369-8539		Dr Leslaw J Gredysa, MD
31 Main Rd, Suite 2,
Riverhead, NY 11901

Ph: (631) 369-8539

Reviews and Comments


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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.