WILLIAM LEON MD
NPI 1841424462
Emergency Medicine in Nashville, TN

Q: What is William Leon's NPI number?

The NPI number for William Leon is 1841424462. It was assigned to this individual provider in the NPPES registry on May 11, 2009.

Q: What is William Leon's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for William Leon was last updated on July 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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 May 11, 2009PECOS EnrolledAccepts Medicare Assignment

97.12/100

CMS Quality Rating

3601 THE VANDERBILT CLINIC, NASHVILLE, TN 37232(615) 322-3000 Get Directions Write a Review

NPPES record last updated: July 25, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About William Leon Md NPPES

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

WILLIAM LEON MD (NPI 1841424462) is an individual emergency medicine provider in Nashville, Tennessee, licensed in Tennessee (020433) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS, is affiliated with Southern Tennessee Regional Hlth System Winchester, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1841424462

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameWILLIAM LEONCredential: MD

Location Address3601 THE VANDERBILT CLINICNashville, TN 37232-1316

Mailing Address3841 Green Hills Village Dr Ste 200Nashville, TN 37215-2691 · Fax (615) 322-5048

Phone(615) 322-3000

Sole ProprietorNo

Medical School CMSOtherGraduated 1983

Enumeration DateMay 11, 2009

Last NPPES UpdateJuly 25, 2025

NPPES CertifiedJuly 25, 2025

✔ NPI 1841424462 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in TN · 020433

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Also ListedFamily MedicineTaxonomy 207Q00000X · License 020433 (TN)

3601 THE VANDERBILT CLINIC, Nashville, TN 37232

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Secondary Practice Locations 4

Location 11559 Sparta StMc Minnville, TN 37110-1316 · Phone (800) 893-9698

Location 21411 W Baddour PkwyLebanon, TN 37087-2513 · Phone (615) 875-6415

Location 31801 N Jackson StTullahoma, TN 37388-2201 · Phone (615) 875-6415

Location 42835 Highway 231 NShelbyville, TN 37160-7327 · Phone (615) 875-6415

Other Identifiers 1

Medicaid1522291TN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc., Oscar Insurance Company.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

William Leon Md 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 ID2567410814

PECOS Enrollment IDI20050104000569

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 4

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 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.

161 services156 patients

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.

149 services142 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

29 services29 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

20 services17 patients

Hospital Affiliations CMS Care Compare 2

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

Southern Tennessee Regional Hlth System Winchester

Acute Care Hospitals · Winchester, TN

2/5 CMS rating

OwnershipProprietary

CMS Certification Number440058

Location185 Hospital RoadWinchester, TN 37398 · Franklin County

Emergency services Birthing friendly

Vanderbilt Tullahoma-Harton Hospital

Acute Care Hospitals · Tullahoma, TN

3/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number440144

Location1801 N Jackson St Box 460Tullahoma, TN 37388 · Coffee County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37232 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.12/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

85.64

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 20

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

DR. ENGLISH FLACK MD

Pediatrics (Pediatric Cardiology)