2026 NPPES data Nephrology Physician NPI 1689651580 MD
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DAVID LEEHEY, MD

Nephrology Physician in MAYWOOD, Illinois. 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
361
Medicare Part D claims · 82 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: DAVID LEEHEY, MD is a Nephrology Physician ([object Object]) practicing in MAYWOOD, Illinois with a Medicare Part D prescribing footprint of 361 claims across 82 beneficiaries — 17% brand-name prescribing .

What stands out: DAVID LEEHEY, MD filed 361 Medicare Part D claims in 2023 across MAYWOOD, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

DAVID LEEHEY, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

DAVID LEEHEY, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 12/30/2005

NPI 1689651580

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

361 75% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Illinois

How Nephrology Physician compares to other specialties among Illinois providers

Illinois providers

Nephrology Physician share within Illinois

1. Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nephrology Physician share within Illinois

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Nephrology 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).

DAVID LEEHEY, MD is a Nephrology Physician provider practicing in MAYWOOD, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1689651580. 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.

DAVID LEEHEY, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 2160 S FIRST AVE, MAYWOOD, IL, 60153, with a listed phone of (708) 216-3306. NPI 1689651580 was issued on 12/30/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LEEHEY 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 361 prescription claims written by this provider, covering 82 Medicare beneficiaries and totaling roughly $102K in drug spend, split 17% brand-name and 83% generic by claim count. 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.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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

2160 S FIRST AVE
MAYWOOD, IL 60153

Provider Details

NPI 1689651580
Specialty Nephrology Physician
Credentials MD
Gender Male
NPI Issued 12/30/2005

License & disciplinary context — Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 — they are NOT specific to DAVID LEEHEY, MD. To verify DAVID LEEHEY, MD's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

DAVID LEEHEY, MD — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 361 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

361
Total Claims
$102K
Total Drug Cost
82
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
932
Total Day Supply
27,835
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$85K
Generic Drug Cost
$17K

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
2.64
Gender Split
45% female / 55% 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
Torsemide
80
Jardiance
Empagliflozin
58
Chlorthalidone
28
Losartan Potassium
27
Furosemide
20
Calcitriol
19
Amlodipine Besylate
17
Lisinopril
11

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

Nephrology Physician Overview

How DAVID LEEHEY, MD fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

DAVID LEEHEY, MD's 361 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Illinois

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

Compare Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DAVID LEEHEY, MD's specialty?
DAVID LEEHEY, MD specializes in Nephrology Physician and practices in MAYWOOD, Illinois. Credentials: MD.
How much does DAVID LEEHEY, MD prescribe under Medicare Part D?
In 2023, DAVID LEEHEY, MD wrote 361 Medicare Part D claims totaling $102K in drug costs for 82 beneficiaries.
Where is DAVID LEEHEY, MD located?
DAVID LEEHEY, MD is located at 2160 S FIRST AVE, MAYWOOD, IL, 60153. Phone: (708) 216-3306.
What is DAVID LEEHEY, MD's NPI number?
DAVID LEEHEY, MD's National Provider Identifier (NPI) is 1689651580, issued on 12/30/2005.
Does DAVID LEEHEY, MD prescribe more brand-name or generic drugs?
DAVID LEEHEY, MD's prescribing is 17% brand-name and 83% generic drugs by claim count, with $85K in brand drug costs.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does DAVID LEEHEY, MD prescribe most often?
Based on 2023 Medicare Part D data, DAVID LEEHEY, MD's most frequently prescribed drugs include Torsemide, Jardiance, Chlorthalidone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVID LEEHEY, MD accept Medicare?
DAVID LEEHEY, MD appears in CMS Medicare data with 361 Part D claims and 82 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID LEEHEY, MD's credentials?
DAVID LEEHEY, MD's NPI is 1689651580 with credentials MD. 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