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MIREILLE EL HAYEK M.D.
NPI 1912139940
Internal Medicine - Endocrinology, Diabetes & Metabolism in Saint Louis, MO

Active since August 08, 2009PECOS EnrolledAccepts Medicare Assignment
2315 DOUGHERTY FERRY ROAD, SUITE 109B, SAINT LOUIS, MO 63122(314) 965-9133(314) 984-2793 Get Directions Write a Review

NPPES record last updated: October 23, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 23, 2023, Mar 13, 2017, Jan 31, 2017 (3 updates tracked since 2017).

About Mireille El Hayek M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MIREILLE EL HAYEK M.D. (NPI 1912139940) is an individual endocrinology, diabetes & metabolism provider in Saint Louis, Missouri, licensed in Illinois (036142174) and active in the NPI registry since August 2009. She is enrolled in Medicare PECOS, is affiliated with St Luke's Des Peres Hospital, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1912139940
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameMIREILLE EL HAYEKCredential: M.D.
Location Address2315 DOUGHERTY FERRY ROAD, SUITE 109BSaint Louis, MO 63122-3383
Mailing Address2315 Dougherty Ferry Road, Suite 109bSaint Louis, MO 63122-3383 · (314) 965-9133 · Fax (314) 984-2793
Phone(314) 965-9133
Fax(314) 984-2793
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateAugust 8, 2009
Last NPPES UpdateOctober 23, 20233 updates tracked since enumeration
✔ NPI 1912139940 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
Licenses✔ Licensed in IL · 036142174✔ Licensed in MO · 2015023837
Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

2315 DOUGHERTY FERRY ROAD, Saint Louis, MO 63122
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mireille El Hayek M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3870800618
PECOS Enrollment IDI20150911000585
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
111 services64 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
104 services55 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
81 services53 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
45 services21 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
24 services24 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Luke's Des Peres Hospital

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipProprietary
CMS Certification Number260176
Location2345 Dougherty Ferry RoadSaint Louis, MO 63122 · St. Louis County
Emergency services

St Lukes Hospital

Acute Care Hospitals · Chesterfield, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260179
Location232 S Woods Mill RdChesterfield, MO 63017 · St. Louis County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63122 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
9 suppliers23 claims56 services$5.67 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
8 suppliers134 claims135 services$187.87 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ANTHONY JOSEPH D'ANGELO JR. D.O.
Otolaryngology (Facial Plastic Surgery)
2315 DOUGHERTY FERRY ROAD, SUITE 103
ST. LOUIS, MO 63122
St. Louis County (314) 821-5002

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mireille El Hayek's NPI number?

The NPI number for Mireille El Hayek is 1912139940. It was assigned to this individual provider in the NPPES registry on August 8, 2009.

Where is Mireille El Hayek located?

Mireille El Hayek practices at 2315 Dougherty Ferry Road Suite 109B, Saint Louis, MO 63122. The listed phone number is (314) 965-9133.

What is Mireille El Hayek's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Mireille El Hayek enrolled in Medicare?

Yes. Mireille El Hayek is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mireille El Hayek accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 4 other insurers list Mireille El Hayek as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mireille El Hayek affiliated with any hospitals?

According to CMS data, Mireille El Hayek is affiliated with St Luke's Des Peres Hospital and St Lukes Hospital.

When was this NPI record last updated?

The NPPES record for Mireille El Hayek was last updated on October 23, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.