2026 NPPES data Emergency Medicine Physician NPI 1922047653 D.O.
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SEAN ATCHISON, D.O.

Emergency Medicine Physician in KANKAKEE, 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
355
Medicare Part D claims · 194 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: SEAN ATCHISON, D.O. is a Emergency Medicine Physician ([object Object]) practicing in KANKAKEE, Illinois with a Medicare Part D prescribing footprint of 355 claims across 194 beneficiaries — 4% brand-name prescribing .

What stands out: SEAN ATCHISON, D.O. filed 355 Medicare Part D claims in 2023 across KANKAKEE, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

SEAN ATCHISON, D.O. 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).

SEAN ATCHISON, D.O. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/06/2006

NPI 1922047653

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

355 1% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in Illinois

How Emergency Medicine Physician compares to other specialties among Illinois providers

Illinois providers

Emergency Medicine Physician share within Illinois

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

Specialty board-certification context

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

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

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

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

SEAN ATCHISON, D.O. is a Emergency Medicine Physician provider practicing in KANKAKEE, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1922047653. 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.

SEAN ATCHISON, D.O. appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding D.O. credentials at 350 N WALL ST, KANKAKEE, IL, 60901, with a listed phone of (815) 933-1671. NPI 1922047653 was issued on 06/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ATCHISON 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 355 prescription claims written by this provider, covering 194 Medicare beneficiaries and totaling roughly $21K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 20.6%. 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.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

350 N WALL ST
KANKAKEE, IL 60901

Provider Details

NPI 1922047653
Specialty Emergency Medicine Physician
Credentials D.O.
Gender Male
NPI Issued 06/06/2006

Hospital and facility affiliations

Facilities where SEAN ATCHISON, D.O. 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.

EPIC GROUP-EMERGENCY PHYSICIANS AN ILLINOIS CONCERN SC
MORRIS, IL

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

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 SEAN ATCHISON, D.O.. To verify SEAN ATCHISON, D.O.'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 · Generic-heavy

SEAN ATCHISON, D.O. — brand share 4.0%
Specialty average (est.)

4% brand-name claims vs 96% generic, on 355 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.

355
Total Claims
$21K
Total Drug Cost
194
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
408
Total Day Supply
4,762
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$9K
Generic Drug Cost
$12K
Opioid Claims
73 (20.6% rate)
Antibiotic Claims
109

Patient Demographics

Average Patient Age
67.3 years
Avg HCC Risk Score
1.81
Gender Split
61% female / 39% male
Age Distribution
<65: 60, 65-74: 77, 75-84: 45, 85+: 12

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
63
Ondansetron Odt
Ondansetron
51
Levofloxacin
24
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
24
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
15
Lorazepam
15
Ciprofloxacin Hcl
13
Prednisone
13
Azithromycin
11

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

Emergency Medicine Physician Overview

How SEAN ATCHISON, D.O. fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

SEAN ATCHISON, D.O.'s 355 claims are above the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Illinois

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

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

Frequently Asked Questions

What is SEAN ATCHISON, D.O.'s specialty?
SEAN ATCHISON, D.O. specializes in Emergency Medicine Physician and practices in KANKAKEE, Illinois. Credentials: D.O..
How much does SEAN ATCHISON, D.O. prescribe under Medicare Part D?
In 2023, SEAN ATCHISON, D.O. wrote 355 Medicare Part D claims totaling $21K in drug costs for 194 beneficiaries.
Where is SEAN ATCHISON, D.O. located?
SEAN ATCHISON, D.O. is located at 350 N WALL ST, KANKAKEE, IL, 60901. Phone: (815) 933-1671.
What is SEAN ATCHISON, D.O.'s NPI number?
SEAN ATCHISON, D.O.'s National Provider Identifier (NPI) is 1922047653, issued on 06/06/2006.
Does SEAN ATCHISON, D.O. prescribe more brand-name or generic drugs?
SEAN ATCHISON, D.O.'s prescribing is 4% brand-name and 96% generic drugs by claim count, with $9K in brand drug costs.
Does SEAN ATCHISON, D.O. prescribe opioids?
Yes, SEAN ATCHISON, D.O. had 73 opioid claims in 2023 with an opioid prescribing rate of 20.6%.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 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 SEAN ATCHISON, D.O. prescribe most often?
Based on 2023 Medicare Part D data, SEAN ATCHISON, D.O.'s most frequently prescribed drugs include Hydrocodone-Acetaminophen, Ondansetron Odt, Levofloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SEAN ATCHISON, D.O. accept Medicare?
SEAN ATCHISON, D.O. appears in CMS Medicare data with 355 Part D claims and 194 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SEAN ATCHISON, D.O.'s credentials?
SEAN ATCHISON, D.O.'s NPI is 1922047653 with credentials D.O.. 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