2026 NPPES data Allergy & Immunology Physician NPI 1407895600 M.D.
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PATRICIA LEONARD, M.D.

Allergy & Immunology Physician in HOUSTON, Texas. 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
624
Medicare Part D claims · 137 beneficiaries · Allergy & Immunology Physician avg: 764
Industry payments
$1.8K
75 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: PATRICIA LEONARD, M.D. is a Allergy & Immunology Physician ([object Object]) practicing in HOUSTON, Texas with a Medicare Part D prescribing footprint of 624 claims across 137 beneficiaries . Industry payments of $1.8K across 75 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: PATRICIA LEONARD, M.D. filed 624 Medicare Part D claims in 2023 across HOUSTON, Texas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

PATRICIA LEONARD, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

PATRICIA LEONARD, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/05/2006

NPI 1407895600

Primary specialty

Allergy & Immunology Physician

Niche

3,390 US NPIs in this specialty

Medicare Part D claims

624 18% vs specialty avg

2023 prescription claims

Specialty avg: 764

Specialty distribution in Texas

How Allergy & Immunology Physician compares to other specialties among Texas providers

Texas providers

Allergy & Immunology Physician share within Texas

1. Allergy & Immunology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Allergy & Immunology Physician share within Texas

Specialty board-certification context

Estimated specialty board-certified rate — Allergy & Immunology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Allergy & Immunology Physician ABMS/AOA estimate

Est. board-certified rate (Allergy & Immunology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Allergy & Immunology 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).

PATRICIA LEONARD, M.D. is a Allergy & Immunology Physician provider practicing in HOUSTON, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1407895600. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

PATRICIA LEONARD, M.D. appears in the CMS NPPES registry as a Allergy & Immunology Physician provider holding M.D. credentials at 780 W SAM HOUSTON PKWY N, HOUSTON, TX, 77024, with a listed phone of (281) 649-7500. NPI 1407895600 was issued on 06/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LEONARD 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 624 prescription claims written by this provider, covering 137 Medicare beneficiaries and totaling roughly $352K 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.

Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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

780 W SAM HOUSTON PKWY N
HOUSTON, TX 77024

Provider Details

NPI 1407895600
Specialty Allergy & Immunology Physician
Credentials M.D.
Gender Female
NPI Issued 06/05/2006

Hospital and facility affiliations

Facilities where PATRICIA LEONARD, M.D. 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.

HOUSTON EAR NOSE AND THROAT CLINIC LLP
HOUSTON, TX

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for PATRICIA LEONARD, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.8K

Largest payer

GENZYME CORPORATION

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Texas TMB 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 ~77K Texas medical licensees in 2023 — they are NOT specific to PATRICIA LEONARD, M.D.. To verify PATRICIA LEONARD, M.D.'s current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB 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 Texas 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.

624
Total Claims
$352K
Total Drug Cost
137
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
892
Total Day Supply
23,390
Generic Drug Cost
$14K
Antibiotic Claims
69

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
0.99
Gender Split
67% female / 33% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Montelukast Sodium
70
Azelastine Hcl
53
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
50
Prednisone
47
Fluticasone Propionate
35
Breo Ellipta
Fluticasone/Vilanterol
34
Albuterol Sulfate Hfa
Albuterol Sulfate
32
Levocetirizine Dihydrochloride
26
Dupixent Pen
Dupilumab
23
Epinephrine
23

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

Allergy & Immunology Physician Overview

How PATRICIA LEONARD, M.D. fits within the Allergy & Immunology Physician landscape nationally.

3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider

PATRICIA LEONARD, M.D.'s 624 claims are below the specialty average of 764.

Nearby Allergy & Immunology Physician Providers in Texas

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

Compare Allergy & Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is PATRICIA LEONARD, M.D.'s specialty?
PATRICIA LEONARD, M.D. specializes in Allergy & Immunology Physician and practices in HOUSTON, Texas. Credentials: M.D..
How much does PATRICIA LEONARD, M.D. prescribe under Medicare Part D?
In 2023, PATRICIA LEONARD, M.D. wrote 624 Medicare Part D claims totaling $352K in drug costs for 137 beneficiaries.
Where is PATRICIA LEONARD, M.D. located?
PATRICIA LEONARD, M.D. is located at 780 W SAM HOUSTON PKWY N, HOUSTON, TX, 77024. Phone: (281) 649-7500.
What is PATRICIA LEONARD, M.D.'s NPI number?
PATRICIA LEONARD, M.D.'s National Provider Identifier (NPI) is 1407895600, issued on 06/05/2006.
How many Allergy & Immunology Physician providers are there in the US?
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does PATRICIA LEONARD, M.D. prescribe most often?
Based on 2023 Medicare Part D data, PATRICIA LEONARD, M.D.'s most frequently prescribed drugs include Montelukast Sodium, Azelastine Hcl, Trelegy Ellipta. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PATRICIA LEONARD, M.D. accept Medicare?
PATRICIA LEONARD, M.D. appears in CMS Medicare data with 624 Part D claims and 137 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PATRICIA LEONARD, M.D.'s credentials?
PATRICIA LEONARD, M.D.'s NPI is 1407895600 with credentials M.D.. 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