Dr Kristen A Obrien, MD - Medicare Family Practice in Smithtown, NY

Dr Kristen A Obrien, MD is a medicare enrolled "Family Medicine" physician in Smithtown, New York. She went to State University Of New York At Buffalo School Of Medicine and graduated in 2001 and has 23 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice North Shore - Lij Medical Pc and her current practice location is 9 Brooksite Dr, Suite 1, Smithtown, New York. You can reach out to her office (for appointments etc.) via phone at (631) 724-1331.

Dr Kristen A Obrien is licensed to practice in New York (license number 231689) 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 1811922529.

Contact Information

Dr Kristen A Obrien, MD
9 Brooksite Dr, Suite 1,
Smithtown, NY 11787-3400
(631) 724-1331
(631) 360-5646

Map and Direction




Physician's Profile

Full NameDr Kristen A Obrien
GenderFemale
SpecialityFamily Practice
Experience23 Years
Location9 Brooksite Dr, Smithtown, 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:
  • Dr Kristen A Obrien attended and graduated from State University Of New York At Buffalo School Of Medicine in 2001
  NPI Data:
  • NPI Number: 1811922529
  • Provider Enumeration Date: 07/11/2006
  • Last Update Date: 05/02/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 6305806076
  • Enrollment ID: I20041209000747

Medical Identifiers

Medical identifiers for Dr Kristen A Obrien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811922529NPI-NPPES
02639114MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 231689 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Catholic Home CareFarmingdale, NYHome health agency
Kindred At Home (hauppauge)Hauppauge, NYHome health agency
North Shore University HospitalManhasset, NYHospital
Suny/stony Brook University HospitalStony brook, 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 Kristen A Obrien allows following entities to bill medicare on her behalf.
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 Kristen A Obrien 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 Kristen A Obrien, MD
9 Brooksite Dr, Suite 1,
Smithtown, NY 11787-3400

Ph: (631) 724-1331
Dr Kristen A Obrien, MD
9 Brooksite Dr, Suite 1,
Smithtown, NY 11787-3400

Ph: (631) 724-1331

Reviews and Comments


Family Medicine Doctors in Smithtown, NY

Dr. Anna Kapsalis Rambalakos, MD
Family Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 321 Middle Country Road, Smithtown, NY 11787
Phone: 631-265-4606    Fax: 631-265-4675
Paolo Thomas Coppola, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 519 W Jericho Tpke, Smithtown, NY 11787
Phone: 631-360-5900    Fax: 631-360-9406
Dr. Alfred P Belding, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9 Brooksite Dr, Smithtown, NY 11787
Phone: 631-724-1331    Fax: 631-360-5646
Dr. Sharmilee Vishwajit Shetty, M.D
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9 Brooksite Dr, Smithtown, NY 11787
Phone: 631-724-1331    Fax: 631-360-5646
Dr. Lawrence Salob, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 Terry Rd Ste 309, Smithtown, NY 11787
Phone: 631-979-7400    Fax: 631-979-7440
Martha Tsarkalis, M.D
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 222 Middle Country Rd, Suite 103, Smithtown, NY 11787
Phone: 631-265-2222    Fax: 631-265-2227
Dr. Andrea Lee Pollack, D.O
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 363 Route 111, Suite 101, Smithtown, NY 11787
Phone: 631-724-9394    

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.