Michael H Lief, MD - Medicare Internal Medicine in New York, NY

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Michael H Lief, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in New York, New York. He graduated from medical school in 2001 and has 25 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Optum Medical Care Pc and his current practice location is 317 E 34th St, 7th Floor, New York, New York. You can reach out to his office (for appointments etc.) via phone at (212) 981-7259.

Michael H Lief is licensed to practice in New York (license number 227413) 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 1942229745.

Contact Information

Michael H Lief, MD
317 E 34th St, 7th Floor,
New York, NY 10016-4974
(212) 981-7259
(212) 209-3259

Map and Direction




Physician's Profile

Full NameMichael H Lief
GenderMale
SpecialityInternal Medicine
Experience25 Years
Location317 E 34th St, New York, 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:
  • Michael H Lief graduated from medical school in 2001
  NPI Data:
  • NPI Number: 1942229745
  • Provider Enumeration Date: 07/19/2006
  • Last Update Date: 08/28/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 7810082526
  • Enrollment ID: I20070926000666

Medical Identifiers

Medical identifiers for Michael H Lief such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1942229745NPI-NPPES
02808708MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease 227413 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Americare Certified Special Services, Inc ChhaBrooklyn, NYHome health agency
Nyu Langone HospitalsNew york, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Optum Medical Care Pc99310132401013

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. Michael H Lief allows following entities to bill medicare on his behalf.
Entity NameOptum Medical Care PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982643003
PECOS PAC ID: 9931013240
Enrollment ID: O20031119000321

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. Michael H Lief 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
Michael H Lief, MD
317 E 34th St, 7th Floor,
New York, NY 10016-4974

Ph: (212) 981-7259		Michael H Lief, MD
317 E 34th St, 7th Floor,
New York, NY 10016-4974

Ph: (212) 981-7259

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.