2026 NPPES data Nephrology Physician NPI 1932131869 M.D.
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CARLOS LEON, M.D.

Nephrology Physician in ST GEORGE, Utah. 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
1K
Medicare Part D claims · 291 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$878.33
35 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: CARLOS LEON, M.D. is a Nephrology Physician ([object Object]) practicing in ST GEORGE, Utah with a Medicare Part D prescribing footprint of 1K claims across 291 beneficiaries — 14% brand-name prescribing . Industry payments of $878.33 across 35 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: CARLOS LEON, M.D. filed 1,348 Medicare Part D claims in 2023 across ST GEORGE, Utah. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

CARLOS LEON, 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).

CARLOS LEON, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/07/2006

NPI 1932131869

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

1,348 7% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Utah

How Nephrology Physician compares to other specialties among Utah providers

Utah providers

Nephrology Physician share within Utah

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

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).

CARLOS LEON, M.D. is a Nephrology Physician provider practicing in ST GEORGE, Utah, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1932131869. 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.

CARLOS LEON, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 624 S 1000 E STE 103, ST GEORGE, UT, 84790, with a listed phone of (435) 652-1135. NPI 1932131869 was issued on 07/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LEON 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 1,348 prescription claims written by this provider, covering 291 Medicare beneficiaries and totaling roughly $243K in drug spend, split 14% brand-name and 86% 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

624 S 1000 E STE 103
ST GEORGE, UT 84790

Provider Details

NPI 1932131869
Specialty Nephrology Physician
Credentials M.D.
Gender Male
NPI Issued 07/07/2006

Hospital and facility affiliations

Facilities where CARLOS LEON, 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.

ST GEORGE KIDNEY CARE LLC
CEDAR CITY, UT

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 CARLOS LEON, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$878

Largest payer

Amgen Inc.

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.

Brand vs generic prescribing mix · Typical

CARLOS LEON, M.D. — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 1,348 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.

1,348
Total Claims
$243K
Total Drug Cost
291
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,305
Total Day Supply
97,590
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$205K
Generic Drug Cost
$38K
Antibiotic Claims
37

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
3.18
Gender Split
43% female / 57% male
Age Distribution
<65: 35, 65-74: 100, 75-84: 130, 85+: 26

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Amlodipine Besylate
110
Lisinopril
84
Furosemide
77
Jardiance
Empagliflozin
77
Spironolactone
68
Losartan Potassium
63
Allopurinol
58
Vitamin D2
Ergocalciferol (Vitamin D2)
57
Calcitriol
50
Carvedilol
45

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

Nephrology Physician Overview

How CARLOS LEON, M.D. 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

CARLOS LEON, M.D.'s 1,348 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Utah

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

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

Frequently Asked Questions

What is CARLOS LEON, M.D.'s specialty?
CARLOS LEON, M.D. specializes in Nephrology Physician and practices in ST GEORGE, Utah. Credentials: M.D..
How much does CARLOS LEON, M.D. prescribe under Medicare Part D?
In 2023, CARLOS LEON, M.D. wrote 1,348 Medicare Part D claims totaling $243K in drug costs for 291 beneficiaries.
Where is CARLOS LEON, M.D. located?
CARLOS LEON, M.D. is located at 624 S 1000 E STE 103, ST GEORGE, UT, 84790. Phone: (435) 652-1135.
What is CARLOS LEON, M.D.'s NPI number?
CARLOS LEON, M.D.'s National Provider Identifier (NPI) is 1932131869, issued on 07/07/2006.
Does CARLOS LEON, M.D. prescribe more brand-name or generic drugs?
CARLOS LEON, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $205K 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 CARLOS LEON, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CARLOS LEON, M.D.'s most frequently prescribed drugs include Amlodipine Besylate, Lisinopril, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CARLOS LEON, M.D. accept Medicare?
CARLOS LEON, M.D. appears in CMS Medicare data with 1,348 Part D claims and 291 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CARLOS LEON, M.D.'s credentials?
CARLOS LEON, M.D.'s NPI is 1932131869 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