NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1679590269 M.D.
Verify on CMS → Andrew Zasada, M.D.
Emergency Medicine Physician in Mattoon, Illinois.
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
2K
Medicare Part D claims · 221 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
86%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Andrew Zasada, M.D. filed 2,272 Medicare Part D claims in 2023 as an Emergency Medicine Physician in Mattoon, Illinois, prescribing 86% generic.
- 2K
- Part D claims, 2023
- 86%
- generic prescribing
- 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.
Andrew Zasada, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,272 Top 15% higher than 85% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Andrew Zasada, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 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 Andrew Zasada, M.D.?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
2,272 6× vs specialty avg
Specialty distribution in Illinois
How Emergency Medicine Physician compares to other specialties among Illinois providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Emergency Medicine Physician. Verify directly:
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).
Andrew Zasada, M.D. appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding M.D. credentials at 1000 HEALTH CENTER DRIVE, Mattoon, IL, 61938, with a listed phone of (217) 238-4325. NPI 1679590269 was issued on 07/17/2006.
Medicare Part D records for calendar year 2023 show 2,272 prescription claims written by this provider, covering 221 Medicare beneficiaries and totaling roughly $192K in drug spend, split 13% brand-name and 86% generic by claim count, with an opioid prescribing rate of 8.2%.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 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
Provider Details
| NPI | 1679590269 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/17/2006 |
Hospital and facility affiliations
Facilities where Andrew Zasada, 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.
Iems Physician Services PLLC
Urbana, IL
Statera Health Care LLC
Watseka, 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 Andrew Zasada, M.D.. To verify Andrew Zasada, M.D.'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 · Typical
Andrew Zasada, M.D. - brand share 13.0%
Emergency Medicine Physician average
13% brand-name claims vs 86% generic, on 2,272 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.
2,272
Total Claims
$192K
Total Drug Cost
221
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,180
- Total Day Supply
- 112,750
- Brand vs Generic
- 13% brand / 86% generic
- Brand Drug Cost
- $148K
- Generic Drug Cost
- $43K
- Opioid Claims
- 187 (8.2% rate)
- Antibiotic Claims
- 119
Patient Demographics
- Average Patient Age
- 71.2 years
- Avg HCC Risk Score
- 1.53
- Gender Split
- 48% female / 52% male
- Age Distribution
- <65: 38, 65-74: 100, 75-84: 62, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Andrew Zasada, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Rosuvastatin Calcium
Rosuvastatin Calcium
115 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
90 claims
- Lisinopril
Lisinopril
65 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
58 claims
- Gabapentin
Gabapentin
57 claims
- Metoprolol Succinate
Metoprolol Succinate
53 claims
- Levothyroxine Sodium
Levothyroxine Sodium
52 claims
- Amlodipine Besylate 44
Amlodipine Besylate
44 claims
| Drug | Claims |
|---|---|
| Rosuvastatin Calcium | 115 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 90 |
| Lisinopril | 65 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 58 |
| Gabapentin | 57 |
| Metoprolol Succinate | 53 |
| Levothyroxine Sodium | 52 |
| Amlodipine Besylate | 44 |
| Losartan Potassium | 41 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 39 |
* 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 Andrew Zasada, 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
Andrew Zasada, M.D.'s 2,272 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 Zasada.
Dr. Osama Aaflaq
M.D.
Carbondale, IL
Dr. Suresh Abad
M.D.
Vernon Hills, IL
Dr. Albert Abalos
M.D.
Elmhurst, IL
Dr. Habib Abbasi
M.D.
Joliet, IL
Dr. Andrew Abbeg
D.O.
Greenville, IL
Compare Emergency Medicine Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Andrew Zasada, M.D.'s specialty? ▼
Andrew Zasada, M.D. specializes in Emergency Medicine Physician and practices in Mattoon, Illinois. Credentials: M.D..
How much does Andrew Zasada, M.D. prescribe under Medicare Part D? ▼
In 2023, Andrew Zasada, M.D. wrote 2,272 Medicare Part D claims totaling $192K in drug costs for 221 beneficiaries.
Where is Andrew Zasada, M.D. located? ▼
Andrew Zasada, M.D. is located at 1000 HEALTH CENTER DRIVE, Mattoon, IL, 61938. Phone: (217) 238-4325.
What is Andrew Zasada, M.D.'s NPI number? ▼
Andrew Zasada, M.D.'s National Provider Identifier (NPI) is 1679590269, issued on 07/17/2006.
Does Andrew Zasada, M.D. prescribe more brand-name or generic drugs? ▼
Andrew Zasada, M.D.'s prescribing is 13% brand-name and 86% generic drugs by claim count, with $148K in brand drug costs.
Does Andrew Zasada, M.D. prescribe opioids? ▼
Yes, Andrew Zasada, M.D. had 187 opioid claims in 2023 with an opioid prescribing rate of 8.2%.
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 Andrew Zasada, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Andrew Zasada, M.D.'s most frequently prescribed drugs include Rosuvastatin Calcium, Hydrocodone-Acetaminophen, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Andrew Zasada, M.D. accept Medicare? ▼
Andrew Zasada, M.D. appears in CMS Medicare data with 2,272 Part D claims and 221 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Andrew Zasada, M.D.'s credentials? ▼
Andrew Zasada, M.D.'s NPI is 1679590269 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.
- 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 PlainDoctor editorial team.
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.