Dr Natalie Semenyuk, MD - Medicare Obstetrics/gynecology in East Setauket, NY

Dr Natalie Semenyuk, MD is a medicare enrolled "Obstetrics & Gynecology" physician in East Setauket, New York. She graduated from medical school in 1988 and has 36 years of diverse experience with area of expertise as Obstetrics/gynecology. She is a member of the group practice Montefiore Medical Center and her current practice location is 6 Technology Dr, East Setauket, New York. You can reach out to her office (for appointments etc.) via phone at (631) 444-4686.

Dr Natalie Semenyuk is licensed to practice in New York (license number 230610) and she also participates in the medicare program. She may accept medicare assignments (which means she may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and her NPI Number is 1841232642.

Contact Information

Dr Natalie Semenyuk, MD
6 Technology Dr,
East Setauket, NY 11733-4047
(631) 444-4686
Not Available

Map and Direction




Physician's Profile

Full NameDr Natalie Semenyuk
GenderFemale
SpecialityObstetrics/gynecology
Experience36 Years
Location6 Technology Dr, East Setauket, New York
Accepts Medicare AssignmentsMay be. She may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Natalie Semenyuk graduated from medical school in 1988
  NPI Data:
  • NPI Number: 1841232642
  • Provider Enumeration Date: 06/13/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 1254328222
  • Enrollment ID: I20040429001578

Medical Identifiers

Medical identifiers for Dr Natalie Semenyuk such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1841232642NPI-NPPES
02510272MedicaidNY
7244499OtherNYAETNA
677D11OtherNYEMPIRE BC.BS

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 230610 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Montefiore Medical CenterBronx, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Montefiore Medical Center37794960212071

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 Natalie Semenyuk allows following entities to bill medicare on her behalf.
Entity NameMontefiore Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063525152
PECOS PAC ID: 3779496021
Enrollment ID: O20031113000235

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 Natalie Semenyuk 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 Natalie Semenyuk, MD
Po Box 1559,
Stony Brook, NY 11790-0989

Ph: (631) 444-4686
Dr Natalie Semenyuk, MD
6 Technology Dr,
East Setauket, NY 11733-4047

Ph: (631) 444-4686

Reviews and Comments


Obstetrics & Gynecology Doctors in East Setauket, NY

James Bernasko, M.D
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 4 Technology Dr, Stony Brook University Physicians, East Setauket, NY 11733
Phone: 631-444-4686    
Dr. Todd R Griffin, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 6 Technology Dr, East Setauket, NY 11733
Phone: 631-444-4686    
Dr. Melissa Strafford, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 4 Technology Dr, East Setauket, NY 11733
Phone: 631-444-4686    
Dr. Cecilia Avila, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 6 Technology Dr, East Setauket, NY 11733
Phone: 631-444-4686    
Philip Schoenfeld, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 100 S Jersey Ave Unit 16, East Setauket, NY 11733
Phone: 631-689-6400    
David John Garry, DO
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 6 Technology Dr, East Setauket, East Setauket, NY 11733
Phone: 631-444-4686    Fax: 631-444-4622
Dr. Jennifer Marie Blaber, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 140 N Belle Mead Ave, East Setauket, NY 11733
Phone: 631-444-4686    

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.