Steven Greenstein, MD - Medicare Cardiovascular Disease (cardiology) in Oceanside, NY

Steven Greenstein, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Oceanside, New York. He went to Albert Einstein College Of Medicine Of Yeshiva University and graduated in 2014 and has 10 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice Mount Sinai School Of Medicine and his current practice location is 1 Healthy Way, Oceanside, New York. You can reach out to his office (for appointments etc.) via phone at (516) 632-3000.

Steven Greenstein is licensed to practice in New York (license number 293863) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1417362245.

Contact Information

Steven Greenstein, MD
1 Healthy Way,
Oceanside, NY 11572-1551
(516) 632-3000
Not Available

Map and Direction




Physician's Profile

Full NameSteven Greenstein
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience10 Years
Location1 Healthy Way, Oceanside, New York
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Steven Greenstein attended and graduated from Albert Einstein College Of Medicine Of Yeshiva University in 2014
  NPI Data:
  • NPI Number: 1417362245
  • Provider Enumeration Date: 07/01/2014
  • Last Update Date: 08/08/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 6709119050
  • Enrollment ID: I20220823002338

Medical Identifiers

Medical identifiers for Steven Greenstein such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1417362245NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 293863 (New York)Secondary
207RC0000XInternal Medicine - Cardiovascular Disease 293863 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mount Sinai South NassauOceanside, NYHospital
Mount Sinai HospitalNew york, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mount Sinai School Of Medicine6406096544154

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 Greenstein allows following entities to bill medicare on his behalf.
Entity NameMount Sinai School Of Medicine
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1508127531
PECOS PAC ID: 6406096544
Enrollment ID: O20130712000368

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 Greenstein 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 Greenstein, MD
256 Grove Ave,
Cedarhurst, NY 11516-1716

Ph: (516) 574-9845
Steven Greenstein, MD
1 Healthy Way,
Oceanside, NY 11572-1551

Ph: (516) 632-3000

Reviews and Comments


Internal Medicine Doctors in Oceanside, NY

Conrad Li, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1 Healthy Way, Oceanside, NY 11572
Phone: 516-632-3666    
Mrs. Pilar A Stevens-haynes, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1 Healthy Way, Division Of Cardiology, Oceanside, NY 11572
Phone: 516-632-3673    
Dr. Muhammad Sohail Khan, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1 Healthy Way, Oceanside, NY 11572
Phone: 516-632-3666    
Dr. William H Simon, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2940 Lincoln Avenue, Ste 201, Oceanside, NY 11572
Phone: 516-766-6808    Fax: 516-766-5218
Dr. Ovidiu A. Krausz, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 310 Woods Ave, Suite 3, Oceanside, NY 11572
Phone: 646-721-3327    Fax: 888-766-8194
Won Jun Park, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1 Healthy Way # E1, Oceanside, NY 11572
Phone: 516-632-3672    
Saeed A Siddiqui, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1 Healthy Way, Attn: Physician Billing, Oceanside, NY 11572
Phone: 516-255-1600    Fax: 516-255-4672

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.