2026 NPPES data Emergency Medicine Physician NPI 1366738965 DO
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LEONEL DIAZ, DO

Emergency Medicine Physician in MIRAMAR, Florida. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
357
Medicare Part D claims · 244 beneficiaries · Emergency Medicine Physician avg: 352

What the federal data shows

LEONEL DIAZ, DO filed 357 Medicare Part D claims in 2023 as a Emergency Medicine Physician in MIRAMAR, Florida.

357
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

LEONEL DIAZ, DO's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

357 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

LEONEL DIAZ, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about LEONEL DIAZ, DO?

Quality data not reported

NPI registry status

Active

Issued 06/22/2011

NPI 1366738965

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

357 1% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in Florida

How Emergency Medicine Physician compares to other specialties among Florida providers

Florida providers

Emergency Medicine Physician share within Florida

1. Emergency Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medicine Physician share within Florida

Specialty board-certification context

Estimated specialty board-certified rate — Emergency Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Emergency Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Emergency Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Emergency Medicine Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

LEONEL DIAZ, DO appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding DO credentials at 1901 SW 172ND AVE, MIRAMAR, FL, 33029, with a listed phone of (954) 265-6307. NPI 1366738965 was issued on 06/22/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DIAZ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 357 prescription claims written by this provider, covering 244 Medicare beneficiaries and totaling roughly $4K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1901 SW 172ND AVE
MIRAMAR, FL 33029

Provider Details

NPI 1366738965
Specialty Emergency Medicine Physician
Credentials DO
Gender Male
NPI Issued 06/22/2011

Hospital and facility affiliations

Facilities where LEONEL DIAZ, DO bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

NAUTILUS HEALTH CARE GROUP LLC
PORT CHARLOTTE, FL
NCHMD INC
NAPLES, FL

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Florida FLDOH 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 — they are NOT specific to LEONEL DIAZ, DO. To verify LEONEL DIAZ, DO's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

357
Total Claims
$4K
Total Drug Cost
244
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
385
Total Day Supply
4,938
Generic Drug Cost
$3K
Antibiotic Claims
198

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
1.00
Gender Split
64% female / 36% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What LEONEL DIAZ, DO prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Azithromycin
66
Cephalexin
52
Fluticasone Propionate
35
Mupirocin
28
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
20
Doxycycline Hyclate
19
Albuterol Sulfate Hfa
Albuterol Sulfate
15
Prednisone
14
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Emergency Medicine Physician Overview

How LEONEL DIAZ, DO fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

LEONEL DIAZ, DO's 357 claims are above the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Florida

Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as DIAZ.

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LEONEL DIAZ, DO's specialty?
LEONEL DIAZ, DO specializes in Emergency Medicine Physician and practices in MIRAMAR, Florida. Credentials: DO.
How much does LEONEL DIAZ, DO prescribe under Medicare Part D?
In 2023, LEONEL DIAZ, DO wrote 357 Medicare Part D claims totaling $4K in drug costs for 244 beneficiaries.
Where is LEONEL DIAZ, DO located?
LEONEL DIAZ, DO is located at 1901 SW 172ND AVE, MIRAMAR, FL, 33029. Phone: (954) 265-6307.
What is LEONEL DIAZ, DO's NPI number?
LEONEL DIAZ, DO's National Provider Identifier (NPI) is 1366738965, issued on 06/22/2011.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does LEONEL DIAZ, DO prescribe most often?
Based on 2023 Medicare Part D data, LEONEL DIAZ, DO's most frequently prescribed drugs include Azithromycin, Cephalexin, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LEONEL DIAZ, DO accept Medicare?
LEONEL DIAZ, DO appears in CMS Medicare data with 357 Part D claims and 244 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LEONEL DIAZ, DO's credentials?
LEONEL DIAZ, DO's NPI is 1366738965 with credentials DO. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology