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2026 NPPES data Emergency Medicine Physician NPI 1447456215 M.D.
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Matthew Treaster, M.D.

Emergency Medicine Physician in Saint Louis, Missouri.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,463 in Emergency Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
242
Medicare Part D claims · 152 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
88.9/100
▲ 5 pts above national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Matthew Treaster, M.D. reported a CMS MIPS final score of 88.9/100 - above the 83.5 national average - and filed 242 Medicare Part D claims in 2023.

88.9/100
MIPS score · +5 vs avg
242
Part D claims, 2023
Likely
board-certified (heuristic)
≥54th
pct among measured MIPS (lower-bound band)

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.

Federal trust snapshot

What official records show about Matthew Treaster, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1447456215), first enumerated 06/26/2007.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 242 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 88.9/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    4 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1447456215 · Emergency Medicine Physician

NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ABOVE · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1447456215
  • ENUM-MID 2007
  • TAX-MEGA 64K Emergency Medicine
  • MIPS-ABOVE 88.9/100
  • RX-LIGHT 242
  • BOOK-LIGHT 1,324 in Missouri
  • PHOTO-FINISH Tina Chen · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Matthew Treaster, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

89 ≥ 54th percentile 54% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Matthew Treaster, M.D. sits

This provider among emergency medicine physician peers

Across the 14,017 emergency medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Matthew Treaster, M.D. writes more Part D claims than 71% of them and scores higher on MIPS quality than 42% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 90Matthew Treaster, M.D., Part D claim volume, percentile in specialty: 71 · MIPS quality, percentile: 42
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one emergency medicine physician peer from a representative sample of 60; the gold marker is Matthew Treaster, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Matthew Treaster, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 4 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 Matthew Treaster, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 06/26/2007

NPI 1447456215

Primary specialty

Emergency Medicine Physician

High-volume

64,463 US NPIs in this specialty

Medicare Part D claims

242 31% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

88.9/100 5.4 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Missouri

How Emergency Medicine Physician compares to other specialties among Missouri providers

Missouri providers
Pharmacist4.8%Professional Counselor4.8%Speech-Language Pathologist4.5%Clinical Social Worker4.5%Family Nurse Practitioner4.3%Physical Therapist4%Emergency Medicine Physician1.2%
Largest specialties in Missouri (% of in-state providers)

Medicare quality performance, MIPS

Matthew Treaster, M.D.'s 2023 MIPS final score plotted against the Emergency Medicine Physician national average

High performer (top quartile)
MIPS Final Score
88.9/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%88.9%
MIPS final score (Emergency Medicine Physician) - 88.9/100 vs national avg 83.5
How MIPS and board certification work

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).

Practice Address

660 S EUCLID AVE
Saint Louis, MO 63110
(314) 362-9177

Provider Details

NPI 1447456215
Specialty Emergency Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 06/26/2007

CMS Quality Score (MIPS)

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

88.9211
Final Score
Measured-score avg: 83.5
84.7241
Quality
45.013
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Matthew Treaster, 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.

According to CMS billing records, Matthew Treaster, M.D. is affiliated with 4 Medicare-billing facilities across 2 states.

Midwest Emergency Centralia Campus Associates, Inc.
Centralia, IL
Midwest Emergency Good Samaritan, Inc
Mount Vernon, IL
Midwest Emergency Sparta, Inc.
Sparta, IL
Ssm Health Care Group
Saint Louis, MO

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

Medicare Part D Prescribing Data

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

242
Total Claims
$5K
Total Drug Cost
152
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
247
Total Day Supply
2,364
Generic Drug Cost
$2K
Opioid Claims
43 (17.8% rate)
Antibiotic Claims
64

Patient Demographics

Average Patient Age
71.3 years
Avg HCC Risk Score
1.49
Gender Split
51% female / 49% male
Age Distribution
<65: 31, 65-74: 57, 75-84: 45, 85+: 19

Top Prescribed Drugs (Medicare Part D)

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

What Matthew Treaster, M.D. 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
Prednisone
 31
Ondansetron Odt
Ondansetron
24
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
20
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
20
Cephalexin
 17
Pantoprazole Sodium
 15
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
14
Azithromycin
 11

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

More Emergency Medicine Physician in MO → All providers in Missouri → Compare specialties →

Emergency Medicine Physician Overview

How Matthew Treaster, M.D. fits within the Emergency Medicine Physician landscape nationally.

64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

Matthew Treaster, M.D.'s 242 claims are below the specialty average of 352.

Nationwide Emergency Medicine Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Treaster, both outside Missouri so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (88.9 here).

Tina Chen 88.9 CT Kenechukwu Chukwuanu 88.9 FL Andrew Demars 88.9 CO Edward Fieg 88.9 OH

Same NPPES enumeration year (2007)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Jared Vorachard Burnet, TX Fritzgerald Estinfa Bay Shore, NY Sara Miller Houston, TX Benjamin Ricke Indianapolis, IN

Nearby Emergency Medicine Physician Providers in Missouri

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

One of 1,324 Emergency Medicine Physician providers enrolled in Missouri, 5 are shown here.

Dr. Robert Abbott
M.D.
Saint Charles, MO
Dr. Nagla Abdelmalek
M.D.
Saint Louis, MO
Dr. Donald Ables
MD
Kansas City, MO
Dr. Enyo Ablordeppey
MD
Saint Louis, MO
Dr. Allison Abma
DO
Branson, MO

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

Frequently Asked Questions

What is Matthew Treaster, M.D.'s specialty? ▼
Matthew Treaster, M.D. specializes in Emergency Medicine Physician and practices in Saint Louis, Missouri. Credentials: M.D..
How much does Matthew Treaster, M.D. prescribe under Medicare Part D? ▼
In 2023, Matthew Treaster, M.D. wrote 242 Medicare Part D claims totaling $5K in drug costs for 152 beneficiaries.
What is Matthew Treaster, M.D.'s Medicare quality score? ▼
Matthew Treaster, M.D. has a CMS MIPS Final Score of 88.9/100 (Quality: 84.7, Cost: 45). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Matthew Treaster, M.D. located? ▼
Matthew Treaster, M.D. is located at 660 S EUCLID AVE, Saint Louis, MO, 63110. Phone: (314) 362-9177.
What is Matthew Treaster, M.D.'s NPI number? ▼
Matthew Treaster, M.D.'s National Provider Identifier (NPI) is 1447456215, issued on 06/26/2007.
Does Matthew Treaster, M.D. prescribe opioids? ▼
Yes, Matthew Treaster, M.D. had 43 opioid claims in 2023 with an opioid prescribing rate of 17.8%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 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 Matthew Treaster, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Matthew Treaster, M.D.'s most frequently prescribed drugs include Prednisone, Ondansetron Odt, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Matthew Treaster, M.D. accept Medicare? ▼
Matthew Treaster, M.D. appears in CMS Medicare data with 242 Part D claims and 152 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Matthew Treaster, M.D.'s credentials? ▼
Matthew Treaster, M.D.'s NPI is 1447456215 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

View source datasets and methodology notes
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

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.