Steven Seiden, MD - Medicare Internal Medicine in Rockville Center, NY

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Steven Seiden, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Rockville Center, New York. His current practice location is 242 Merrick Rd, Suite 402, Rockville Center, New York. You can reach out to his office (for appointments etc.) via phone at (516) 763-2800.

Steven Seiden is licensed to practice in New York (license number 147637) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1891786034.

Contact Information

Steven Seiden, MD
242 Merrick Rd, Suite 402,
Rockville Center, NY 11570-5254
(516) 763-2800
Not Available

Map and Direction




Physician's Profile

Full NameSteven Seiden
GenderMale
SpecialityInternal Medicine - Cardiovascular Disease
Location242 Merrick Rd, Rockville Center, New York
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1891786034
  • Provider Enumeration Date: 11/04/2005
  • Last Update Date: 03/29/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 0749375228
  • Enrollment ID: I20100629000092

Medical Identifiers

Medical identifiers for Steven Seiden such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1891786034NPI-NPPES
00892017MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease 147637 (New York)Primary

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. Steven Seiden allows following entities to bill medicare on his behalf.
Entity NameNew York University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285826438
PECOS PAC ID: 1355232422
Enrollment ID: O20090822000026
Entity NameWinthrop Community Medical Affiliates Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457873077
PECOS PAC ID: 5698092385
Enrollment ID: O20150317001669

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. Steven Seiden 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
Steven Seiden, MD
242 Merrick Rd, Suite 402,
Rockville Center, NY 11570-5254

Ph: (516) 763-2800		Steven Seiden, MD
242 Merrick Rd, Suite 402,
Rockville Center, NY 11570-5254

Ph: (516) 763-2800

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.