Dr Alissa J Mark, MD - Medicare Gastroenterology in White Plains, NY

Dr Alissa J Mark, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in White Plains, New York. She went to Temple University School Of Medicine and graduated in 2001 and has 23 years of diverse experience with area of expertise as Gastroenterology. She is a member of the group practice The Westchester Medical Group, P.c, The Westchester Medical Group, P.c and her current practice location is 210 Westchester Ave, White Plains, New York. You can reach out to her office (for appointments etc.) via phone at (914) 682-6466.

Dr Alissa J Mark is licensed to practice in New York (license number 232097) 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 1174705065.

Contact Information

Dr Alissa J Mark, MD
210 Westchester Ave,
White Plains, NY 10604-2901
(914) 682-6466
Not Available

Map and Direction




Physician's Profile

Full NameDr Alissa J Mark
GenderFemale
SpecialityGastroenterology
Experience23 Years
Location210 Westchester Ave, White Plains, 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 Alissa J Mark attended and graduated from Temple University School Of Medicine in 2001
  NPI Data:
  • NPI Number: 1174705065
  • Provider Enumeration Date: 12/03/2007
  • Last Update Date: 10/16/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 9335225572
  • Enrollment ID: I20080327000603

Medical Identifiers

Medical identifiers for Dr Alissa J Mark such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1174705065NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 232097 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
White Plains Hospital CenterWhite plains, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Westchester Medical Group, P.c6406752963400
The Westchester Medical Group, P.c6406752963400

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 Alissa J Mark allows following entities to bill medicare on her behalf.
Entity NameThe Westchester Medical Group, P.c
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881653822
PECOS PAC ID: 6406752963
Enrollment ID: O20031208000533

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 Alissa J Mark 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 Alissa J Mark, MD
2700 Westchester Ave,
Purchase, NY 10577-2547

Ph: () -
Dr Alissa J Mark, MD
210 Westchester Ave,
White Plains, NY 10604-2901

Ph: (914) 682-6466

Reviews and Comments


Internal Medicine Doctors in White Plains, NY

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Dr. Dan Costin, MD
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Joanne Tamburri, M.D.
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Phone: 914-683-0443    Fax: 914-683-8620
Dr. Avi M Deener, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 210 Westchester Ave, White Plains, NY 10604
Phone: 914-831-6850    Fax: 914-682-5264
Mrs. Noreen H Linn, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 222 Westchester Ave, Suite 205, White Plains, NY 10604
Phone: 914-949-9882    Fax: 914-421-9091

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.