2026 NPPES data Medical Toxicology (Emergency Medicine) Physician NPI 1649768375 MD
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SALMAN AHSAN, MD

Medical Toxicology (Emergency Medicine) Physician in SAINT LOUIS, Missouri. 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
39
Medicare Part D claims · 33 beneficiaries · Medical Toxicology (Emergency Medicine) Physician avg: 329
MIPS score
92.2614/100
▲ 9 pts above national avg 83.1 · [object Object]
What the federal data reveals: SALMAN AHSAN, MD is a Medical Toxicology (Emergency Medicine) Physician ([object Object]) practicing in SAINT LOUIS, Missouri with a Medicare Part D prescribing footprint of 39 claims across 33 beneficiaries . Their CMS MIPS Final Score of 92.2614/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: SALMAN AHSAN, MD reported a CMS MIPS final score of 92.2614 out of 100, above the 83.1 national average, and filed 39 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

SALMAN AHSAN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

SALMAN AHSAN, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 04/27/2018

NPI 1649768375

Primary specialty

Medical Toxicology (Emergency Medicine) Physician

Rare

226 US NPIs in this specialty

Medicare Part D claims

39 88% vs specialty avg

2023 prescription claims

Specialty avg: 329

MIPS final score

92.2614/100 9.1614% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Missouri

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

Missouri providers

Medical Toxicology (Emergency Medicine) Physician share within Missouri

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

Medicare quality performance — MIPS

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

High performer (top quartile)
MIPS Final Score
92.2614/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Medical Toxicology (Emergency Medicine) Physician) — 92.2614/100 vs national avg 83.1

0%100%National avg83%92.3%
MIPS final score (Medical Toxicology (Emergency Medicine) Physician) — 92.2614/100 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).

SALMAN AHSAN, MD is a Medical Toxicology (Emergency Medicine) Physician provider practicing in SAINT LOUIS, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1649768375. 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.

SALMAN AHSAN, MD appears in the CMS NPPES registry as a Medical Toxicology (Emergency Medicine) Physician provider holding MD credentials at 1 BARNES JEWISH HOSPITAL PLZ, SAINT LOUIS, MO, 63110, with a listed phone of (314) 362-9123. NPI 1649768375 was issued on 04/27/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AHSAN 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 39 prescription claims written by this provider, covering 33 Medicare beneficiaries and totaling roughly $846 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 92.2614/100 for the 2023 performance year (Quality 73.8353), 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

1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110

Provider Details

NPI 1649768375
Specialty Medical Toxicology (Emergency Medicine) Physician
Credentials MD
Gender Male
NPI Issued 04/27/2018

CMS Quality Score (MIPS)

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

92.2614
Final Score
Avg: 83.1
73.8353
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where SALMAN AHSAN, MD 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.

WASHINGTON UNIVERSITY
SAINT LOUIS, MO
WASHINGTON UNIVERSITY COMMUNITY SPECIALISTS, LLC
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.

39
Total Claims
$846
Total Drug Cost
33
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
39
Total Day Supply
379
Generic Drug Cost
$801

Patient Demographics

Average Patient Age
67.0 years
Avg HCC Risk Score
2.03
Gender Split
67% female / 33% male
Age Distribution
<65: 11, 65-74: 15, 75-84: N/A, 85+: N/A

Medical Toxicology (Emergency Medicine) Physician Overview

How SALMAN AHSAN, MD 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

SALMAN AHSAN, MD's 39 claims are below the specialty average of 329.

Nearby Medical Toxicology (Emergency Medicine) Physician Providers in Missouri

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

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

Frequently Asked Questions

What is SALMAN AHSAN, MD's specialty?
SALMAN AHSAN, MD specializes in Medical Toxicology (Emergency Medicine) Physician and practices in SAINT LOUIS, Missouri. Credentials: MD.
How much does SALMAN AHSAN, MD prescribe under Medicare Part D?
In 2023, SALMAN AHSAN, MD wrote 39 Medicare Part D claims totaling $846 in drug costs for 33 beneficiaries.
What is SALMAN AHSAN, MD's Medicare quality score?
SALMAN AHSAN, MD has a CMS MIPS Final Score of 92.2614/100 (Quality: 73.8353). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SALMAN AHSAN, MD located?
SALMAN AHSAN, MD is located at 1 BARNES JEWISH HOSPITAL PLZ, SAINT LOUIS, MO, 63110. Phone: (314) 362-9123.
What is SALMAN AHSAN, MD's NPI number?
SALMAN AHSAN, MD's National Provider Identifier (NPI) is 1649768375, issued on 04/27/2018.
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 SALMAN AHSAN, MD accept Medicare?
SALMAN AHSAN, MD appears in CMS Medicare data with 39 Part D claims and 33 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SALMAN AHSAN, MD's credentials?
SALMAN AHSAN, MD's NPI is 1649768375 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.
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