Mrs Selina A Williams, RN, FNP - Medicare Nurse Practitioner in Islip, NY

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Mrs Selina A Williams, RN, FNP is a medicare enrolled "Clinical Nurse Specialist - Family Health" in Islip, New York. She graduated from nursing school in 2011 and has 13 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice North Shore - Lij Medical Pc and her current practice location is 712 Main St, Islip, New York. You can reach out to her office (for appointments etc.) via phone at (631) 666-3939.

Mrs Selina A Williams is licensed to practice in New York (license number F336693) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1144538836.

Contact Information

Mrs Selina A Williams, RN, FNP
712 Main St,
Islip, NY 11751-3620
(631) 666-3939
Not Available

Map and Direction




Provider's Profile

Full NameMrs Selina A Williams
GenderFemale
SpecialityNurse Practitioner
Experience13 Years
Location712 Main St, Islip, New York
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mrs Selina A Williams graduated from nursing school in 2011
  NPI Data:
  • NPI Number: 1144538836
  • Provider Enumeration Date: 09/16/2010
  • Last Update Date: 07/14/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 6406072073
  • Enrollment ID: I20150506000612

Medical Identifiers

Medical identifiers for Mrs Selina A Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144538836NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
163WS0200XRegistered Nurse - School 562964 (New York)Secondary
364SF0001XClinical Nurse Specialist - Family Health F336693 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
North Shore University HospitalManhasset, NYHospital
Ns/lij Hs Southside HospitalBay shore, 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. Mrs Selina A Williams allows following entities to bill medicare on her behalf.
Entity NameSouth Shore Neurologic Associates, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083782460
PECOS PAC ID: 5092602110
Enrollment ID: O20040303000492
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. Mrs Selina A Williams 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
Mrs Selina A Williams, RN, FNP
712 Main St,
Islip, NY 11751-3620

Ph: (631) 666-3939		Mrs Selina A Williams, RN, FNP
712 Main St,
Islip, NY 11751-3620

Ph: (631) 666-3939

Reviews and Comments


Clinical Nurse Specialist Nurses in Islip, NY

Cathy A Hanna-talbot, NNP
Clinical Nurse Specialist
Medicare: Not Enrolled in Medicare
Practice Location: 41 Saint Marks Ln, Islip, NY 11751
Phone: 631-581-4441    

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.