Mireille El Hayek, MD - Medicare Endocrinology in Saint Louis, MO

Mireille El Hayek, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Saint Louis, Missouri. She graduated from medical school in 2007 and has 17 years of diverse experience with area of expertise as Endocrinology. She is a member of the group practice Endocrine Associates, Llc and her current practice location is 2315 Dougherty Ferry Road, Suite 109b, Saint Louis, Missouri. You can reach out to her office (for appointments etc.) via phone at (314) 965-9133.

Mireille El Hayek is licensed to practice in Illinois (license number 036142174) 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 1912139940.

Contact Information

Mireille El Hayek, MD
2315 Dougherty Ferry Road, Suite 109b,
Saint Louis, MO 63122-3383
(314) 965-9133
(314) 984-2793



Physician's Profile

Full NameMireille El Hayek
GenderFemale
SpecialityEndocrinology
Experience17 Years
Location2315 Dougherty Ferry Road, Saint Louis, Missouri
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:
  • Mireille El Hayek graduated from medical school in 2007
  NPI Data:
  • NPI Number: 1912139940
  • Provider Enumeration Date: 08/08/2009
  • Last Update Date: 10/23/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3870800618
  • Enrollment ID: I20150911000585

Medical Identifiers

Medical identifiers for Mireille El Hayek such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912139940NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 2015023837 (Missouri)Secondary
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 036142174 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Lukes HospitalChesterfield, MOHospital
St Luke's Des Peres HospitalSaint louis, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Endocrine Associates, Llc37798653813

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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. Mireille El Hayek allows following entities to bill medicare on her behalf.
Entity NameEndocrine Associates, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134670367
PECOS PAC ID: 3779865381
Enrollment ID: O20170206000159

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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. Mireille El Hayek 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
Mireille El Hayek, MD
2315 Dougherty Ferry Road, Suite 109b,
Saint Louis, MO 63122-3383

Ph: (314) 965-9133
Mireille El Hayek, MD
2315 Dougherty Ferry Road, Suite 109b,
Saint Louis, MO 63122-3383

Ph: (314) 965-9133

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Internal Medicine Doctors in Saint Louis, MO

Dr. Isik Turker, MD
Endocrinology, Diabetes & Metabolism
Medicare: Medicare Enrolled
Practice Location: 4921 Parkview Pl, Div Im Cardiology, Ste 8b, Saint Louis, MO 63110
Phone: 314-362-1291    Fax: 314-362-4278
Conor Mccartney, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 915 N Grand Blvd, Saint Louis, MO 63106
Phone: 314-652-4100    
Dr. Faris Adam Bakeer, MD
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 1 Barnes Jewish Hospital Plz, Div Im Hospitalist, Saint Louis, MO 63110
Phone: 314-362-1700    Fax: 314-362-9878
Rehan Rais, M.D. M.B.,B.S.
Endocrinology, Diabetes & Metabolism
Medicare: Medicare Enrolled
Practice Location: 660 S Euclid Ave, Saint Louis, MO 63110
Phone: 314-362-5000    
Nathan Farkas, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Not Enrolled in Medicare
Practice Location: 1 Barnes Jew Hosp Plz, Saint Louis, MO 63110
Phone: 314-362-1930    
Dr. Nicole Foley, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Medicare Enrolled
Practice Location: 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
Phone: 314-362-5000    
Soumojit Ghosh,
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 3660 Vista Ave, Saint Louis, MO 63110
Phone: 314-977-6100    Fax: 314-977-6164

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