Dr Leslie E Mezei, MD - Medicare Cardiovascular Disease (cardiology) in Saint Louis, MO

Dr Leslie E Mezei, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Saint Louis, Missouri. He graduated from medical school in 1982 and has 42 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). His current practice location is 139 N Central Ave Apt D, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 486-1396.

Dr Leslie E Mezei is licensed to practice in Missouri (license number R3E74) 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 1992800429.

Contact Information

Dr Leslie E Mezei, MD
139 N Central Ave Apt D,
Saint Louis, MO 63105-3800
(314) 486-1396
(314) 485-3520

Map and Direction




Physician's Profile

Full NameDr Leslie E Mezei
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience42 Years
Location139 N Central Ave Apt D, Saint Louis, Missouri
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:
  • Dr Leslie E Mezei graduated from medical school in 1982
  NPI Data:
  • NPI Number: 1992800429
  • Provider Enumeration Date: 09/13/2006
  • Last Update Date: 10/20/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 0840344107
  • Enrollment ID: I20091103000404

Medical Identifiers

Medical identifiers for Dr Leslie E Mezei such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1992800429NPI-NPPES
125578OtherMOGROUP HEALTH PLAN
A13364OtherMOMERCY HEALTH PLAN
161200OtherMOBLUE SHIELD
202528048MedicaidMO
4061166OtherMOAETNA
STL2500039OtherMOUNITED HEALTHCARE
060069533OtherMORAILROAD MEDICARE
161200OtherMOBLUE CHOICE
STM2500039OtherMOUHC MEDICARE COMPLETE
254499OtherMOHEALTHLINK

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease R3E74 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Lukes HospitalChesterfield, MOHospital
Missouri Baptist Medical CenterTown and country, MOHospital
Mercy Hospital St LouisSaint louis, MOHospital
Barnes Jewish HospitalSaint louis, MOHospital
Progress West HospitalO fallon, MOHospital

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 Leslie E Mezei allows following entities to bill medicare on his behalf.
Entity NameSt. John's Cardiovascular Associates L.l.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518062017
PECOS PAC ID: 4587718838
Enrollment ID: O20090820000519

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 Leslie E Mezei 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 Leslie E Mezei, MD
139 N Central Ave Apt D,
Saint Louis, MO 63105-3800

Ph: (314) 486-1396
Dr Leslie E Mezei, MD
139 N Central Ave Apt D,
Saint Louis, MO 63105-3800

Ph: (314) 486-1396

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.