2026 NPPES data Medical Toxicology (Emergency Medicine) Physician NPI 1558865758 MD, MPH
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CHARLES MCELYEA, MD, MPH

Medical Toxicology (Emergency Medicine) Physician in SACRAMENTO, California. 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
63
Medicare Part D claims · 46 beneficiaries · Medical Toxicology (Emergency Medicine) Physician avg: 329
MIPS score
94.6267/100
▲ 12 pts above national avg 83.1 · [object Object]
Industry payments
$49.21
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CHARLES MCELYEA, MD, MPH reported a CMS MIPS final score of 94.6267/100 — above the 83.1 national average — and filed 63 Medicare Part D claims in 2023.

94.6267/100
MIPS score · +12 vs avg
63
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.

CHARLES MCELYEA, MD, MPH's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

95 Top 25% higher than 75% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

CHARLES MCELYEA, MD, MPH practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 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 CHARLES MCELYEA, MD, MPH?

High performer (top quartile)

NPI registry status

Active

Issued 03/21/2018

NPI 1558865758

Primary specialty

Medical Toxicology (Emergency Medicine) Physician

Rare

226 US NPIs in this specialty

Medicare Part D claims

63 81% vs specialty avg

2023 prescription claims

Specialty avg: 329

MIPS final score

94.6267/100 11.526700000000005% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in California

How Medical Toxicology (Emergency Medicine) Physician compares to other specialties among California providers

California providers

Medical Toxicology (Emergency Medicine) Physician share within California

1. Medical Toxicology (Emergency Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Toxicology (Emergency Medicine) Physician share within California

Medicare quality performance — MIPS

CHARLES MCELYEA, MD, MPH's 2023 MIPS final score plotted against the Medical Toxicology (Emergency Medicine) Physician national average

High performer (top quartile)
MIPS Final Score
94.6267/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Medical Toxicology (Emergency Medicine) Physician) — 94.6267/100 vs national avg 83.1

0%100%National avg83%94.6%
MIPS final score (Medical Toxicology (Emergency Medicine) Physician) — 94.6267/100 vs national avg 83.1

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).

CHARLES MCELYEA, MD, MPH appears in the CMS NPPES registry as a Medical Toxicology (Emergency Medicine) Physician provider holding MD, MPH credentials at 2315 STOCKTON BLVD, SACRAMENTO, CA, 95817, with a listed phone of (916) 734-8570. NPI 1558865758 was issued on 03/21/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCELYEA 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 63 prescription claims written by this provider, covering 46 Medicare beneficiaries and totaling roughly $1K in drug spend, with an opioid prescribing rate of 19.0%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.6267/100 for the 2023 performance year (Quality 76.6789, Cost 97.1443), compared with the national average of 83.1.

Medical Toxicology (Emergency Medicine) Physician is a narrow specialty nationwide, with 226 enrolled providers across 39 states and an average of 329 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

2315 STOCKTON BLVD
SACRAMENTO, CA 95817

Provider Details

NPI 1558865758
Specialty Medical Toxicology (Emergency Medicine) Physician
Credentials MD, MPH
Gender Male
NPI Issued 03/21/2018

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

94.6267
Final Score
Avg: 83.1
76.6789
Quality
97.1443
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where CHARLES MCELYEA, MD, MPH 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.

CEP AMERICA - CALIFORNIA
ROSEVILLE, CA
GALEN INPATIENT PHYSICIANS PC
ROSEVILLE, CA
VITUITY-CALIFORNIA OBSERVATION SERVICES PC
ROSEVILLE, CA

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 CHARLES MCELYEA, MD, MPH. Source: openpaymentsdata.cms.gov.

Total received

$49

Largest payer

ABBVIE 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.

License & disciplinary context — California MBC 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 ~150K California medical licensees in 2023 — they are NOT specific to CHARLES MCELYEA, MD, MPH. To verify CHARLES MCELYEA, MD, MPH's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California 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.

63
Total Claims
$1K
Total Drug Cost
46
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
63
Total Day Supply
420
Generic Drug Cost
$983
Opioid Claims
12 (19.0% rate)
Antibiotic Claims
25

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
1.94
Gender Split
61% female / 39% male

Medical Toxicology (Emergency Medicine) Physician Overview

How CHARLES MCELYEA, MD, MPH fits within the Medical Toxicology (Emergency Medicine) Physician landscape nationally.

226
Medical Toxicology (Emergency Medicine) Physician Providers in US
39
States with Medical Toxicology (Emergency Medicine) Physician
329
Avg Claims per Provider

CHARLES MCELYEA, MD, MPH's 63 claims are below the specialty average of 329.

Nearby Medical Toxicology (Emergency Medicine) Physician Providers in California

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

Compare Medical Toxicology (Emergency Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHARLES MCELYEA, MD, MPH's specialty?
CHARLES MCELYEA, MD, MPH specializes in Medical Toxicology (Emergency Medicine) Physician and practices in SACRAMENTO, California. Credentials: MD, MPH.
How much does CHARLES MCELYEA, MD, MPH prescribe under Medicare Part D?
In 2023, CHARLES MCELYEA, MD, MPH wrote 63 Medicare Part D claims totaling $1K in drug costs for 46 beneficiaries.
What is CHARLES MCELYEA, MD, MPH's Medicare quality score?
CHARLES MCELYEA, MD, MPH has a CMS MIPS Final Score of 94.6267/100 (Quality: 76.6789, Cost: 97.1443). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CHARLES MCELYEA, MD, MPH located?
CHARLES MCELYEA, MD, MPH is located at 2315 STOCKTON BLVD, SACRAMENTO, CA, 95817. Phone: (916) 734-8570.
What is CHARLES MCELYEA, MD, MPH's NPI number?
CHARLES MCELYEA, MD, MPH's National Provider Identifier (NPI) is 1558865758, issued on 03/21/2018.
Does CHARLES MCELYEA, MD, MPH prescribe opioids?
Yes, CHARLES MCELYEA, MD, MPH had 12 opioid claims in 2023 with an opioid prescribing rate of 19.0%.
How many Medical Toxicology (Emergency Medicine) Physician providers are there in the US?
There are 226 Medical Toxicology (Emergency Medicine) Physician providers across 39 states in the US. The average Medical Toxicology (Emergency Medicine) Physician provider writes 329 Medicare Part D claims per year.
Does CHARLES MCELYEA, MD, MPH accept Medicare?
CHARLES MCELYEA, MD, MPH appears in CMS Medicare data with 63 Part D claims and 46 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHARLES MCELYEA, MD, MPH's credentials?
CHARLES MCELYEA, MD, MPH's NPI is 1558865758 with credentials MD, MPH. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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