Alyssa Korenstein, MD - Medicare Family Practice in New York, NY

Alyssa Korenstein, MD is a medicare enrolled "Family Medicine" physician in New York, New York. She went to University Of Arizona College Of Medicine and graduated in 2017 and has 7 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice Mount Sinai School Of Medicine and her current practice location is 25 Hudson St, New York, New York. You can reach out to her office (for appointments etc.) via phone at (212) 441-4401.

Alyssa Korenstein is licensed to practice in New York (license number 303024) 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 1801320825.

Contact Information

Alyssa Korenstein, MD
25 Hudson St,
New York, NY 10013-3802
(212) 441-4401
(212) 867-4353

Map and Direction




Physician's Profile

Full NameAlyssa Korenstein
GenderFemale
SpecialityFamily Practice
Experience7 Years
Location25 Hudson St, New York, 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:
  • Alyssa Korenstein attended and graduated from University Of Arizona College Of Medicine in 2017
  NPI Data:
  • NPI Number: 1801320825
  • Provider Enumeration Date: 04/17/2017
  • Last Update Date: 06/29/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 6709118565
  • Enrollment ID: I20200625002626

Medical Identifiers

Medical identifiers for Alyssa Korenstein such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1801320825NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 0000000 (Arizona)Secondary
207Q00000XFamily Medicine 303024 (New York)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mount Sinai School Of Medicine0648408575127

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. Alyssa Korenstein allows following entities to bill medicare on her behalf.
Entity NameMount Sinai School Of Medicine
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528538774
PECOS PAC ID: 0648408575
Enrollment ID: O20140122000814

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. Alyssa Korenstein 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
Alyssa Korenstein, MD
129 W 29th St Fl 10,
New York, NY 10001-5105

Ph: (415) 658-6791
Alyssa Korenstein, MD
25 Hudson St,
New York, NY 10013-3802

Ph: (212) 441-4401

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.