DR. MICHAEL HAYOUN M.D., M.PHIL
NPI 1679985105
Emergency Medicine - Medical Toxicology in Nashville, TN

Q: What is Michael Hayoun's NPI number?

The NPI number for Michael Hayoun is 1679985105. It was assigned to this individual provider in the NPPES registry on June 2, 2014.

Q: What is Michael Hayoun's specialty?

The primary specialty registered for this NPI is Emergency Medicine, specializing in Medical Toxicology, with taxonomy code 207PT0002X.

Q: When was this NPI record last updated?

The NPPES record for Michael Hayoun was last updated on January 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 02, 2014PECOS EnrolledAccepts Medicare Assignment

3443 DICKERSON PIKE STE 310, NASHVILLE, TN 37207(615) 645-3013(615) 621-3158 Get Directions Write a Review

NPPES record last updated: January 22, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 29, 2024, May 15, 2024, Apr 25, 2024 and 2 more (5 updates tracked since 2018).

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About Dr. Michael Hayoun M.d., M.phil NPPES

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

DR. MICHAEL HAYOUN M.D., M.PHIL (NPI 1679985105) is an individual medical toxicology provider in Nashville, Tennessee, licensed in Tennessee (60714) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with Tristar Skyline Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1679985105

Entity TypeIndividualMale

Primary Taxonomy207PT0002X

Provider Legal NameDR. MICHAEL HAYOUNCredential: M.D., M.PHIL

Location Address3443 DICKERSON PIKE STE 310Nashville, TN 37207-2523

Mailing Address3443 Dickerson Pike Ste 310Nashville, TN 37207-2523 · (615) 645-3013 · Fax (615) 621-3158

Phone(615) 645-3013

Fax(615) 621-3158

Sole ProprietorYes

Medical School CMSOtherGraduated 2014

Enumeration DateJune 2, 2014

Last NPPES UpdateJanuary 22, 20255 updates tracked since enumeration

NPPES CertifiedJanuary 22, 2025

✔ NPI 1679985105 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency Medicine · Medical ToxicologyAllopathic & Osteopathic Physicians

Taxonomy Code207PT0002X

Licenses✔ Licensed in TN · 60714✔ Licensed in CA · A154633

Definition

Medical toxicologists are physicians who specialize in the prevention, evaluation, treatment and monitoring of injury and illness from exposures to drugs and chemicals, as well as biological and radiological agents. Medical toxicologists care for people in clinical, academic, governmental and public health settings, and provide poison control center leadership. Important areas of medical toxicology include acute drug poisoning, adverse drug events, drug abuse, addiction and withdrawal, chemicals and hazardous materials, terrorism preparedness, venomous bites and stings and environmental and workplace exposures.

Also ListedEmergency MedicineTaxonomy 207P00000X · License MT206041 (PA), 60714 (TN), A154633 (CA)

3443 DICKERSON PIKE STE 310, Nashville, TN 37207

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Secondary Practice Locations 2

Location 1355 New Shackle Island RdHendersonville, TN 37075-2479 · Phone (615) 338-1000

Location 23441 Dickerson PikeNashville, TN 37207-2539 · Phone (615) 769-2000

Other Identifiers 3

MedicaidA154633CA

Medicaid60714TN

MedicaidMT206041PA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of Tennessee, Oscar Insurance Company, UnitedHealthcare.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

Dr. Michael Hayoun M.d., M.phil 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 ID7315989340

PECOS Enrollment IDI20200511001621

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 3

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.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

259 services250 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

168 services160 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

49 services47 patients

Hospital Affiliations CMS Care Compare 3

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

Tristar Skyline Medical Center

Acute Care Hospitals · Nashville, TN

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440006

Location3441 Dickerson PikeNashville, TN 37207 · Davidson County

Emergency services

Tristar Centennial Medical Center

Acute Care Hospitals · Nashville, TN

4/5 CMS rating

OwnershipProprietary

CMS Certification Number440161

Location2300 Patterson StreetNashville, TN 37203 · Davidson County

Emergency services Birthing friendly

Tristar Hendersonville Medical Center

Acute Care Hospitals · Hendersonville, TN

4/5 CMS rating

OwnershipProprietary

CMS Certification Number440194

Location355 New Shackle Island RdHendersonville, TN 37075 · Sumner County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37207 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

$81.53 typical visit price

range $52.64 – $160.89

Typical copayment $20.38 (range $13.16 – $40.22)

Most-billed visit code 99203

Established Patient

$93.60 typical visit price

range $16.72 – $131.41

Typical copayment $23.40 (range $4.18 – $32.85)

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.

Other Providers at the Same Location NPPES 3

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

LEAH A LIMA PMHNP-BC

Nurse Practitioner (Psychiatric/Mental Health)

3443 DICKERSON PIKE STE 310
NASHVILLE, TN 37207

Davidson County (615) 645-3013

ICARUS ADDICTION CARE

Clinic/Center (Rehabilitation, Substance Use Disorder)

3443 DICKERSON PIKE STE 310
NASHVILLE, TN 37207

Davidson County (615) 645-3013

DR. JACOB RICHARD RADFORD M.D.

Clinic/Center (Rehabilitation, Substance Use Disorder)

3443 DICKERSON PIKE STE 310
NASHVILLE, TN 37207

Davidson County (615) 645-3013

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 Michael Hayoun's NPI number?

The NPI number for Michael Hayoun is 1679985105. It was assigned to this individual provider in the NPPES registry on June 2, 2014.

Where is Michael Hayoun located?

Michael Hayoun practices at 3443 Dickerson Pike Ste 310, Nashville, TN 37207. The listed phone number is (615) 645-3013.

What is Michael Hayoun's specialty?

The primary specialty registered for this NPI is Emergency Medicine, specializing in Medical Toxicology, with taxonomy code 207PT0002X.

Is Michael Hayoun enrolled in Medicare?

Yes. Michael Hayoun 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 Michael Hayoun accept?

Health plans from BlueCross BlueShield of Tennessee, Oscar Insurance Company and UnitedHealthcare list Michael Hayoun 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 Michael Hayoun affiliated with any hospitals?

According to CMS data, Michael Hayoun is affiliated with Tristar Skyline Medical Center, Tristar Centennial Medical Center and Tristar Hendersonville Medical Center.

When was this NPI record last updated?

The NPPES record for Michael Hayoun was last updated on January 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.