NPI registry status
Active
2026 NPPES data Surgery Physician NPI 1932159100 DO
Verify on CMS → Frederick Dressen, DO
Surgery Physician in Murphysboro, 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 36,199 in Surgery 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
654
Medicare Part D claims · 77 beneficiaries · Surgery Physician avg: 169
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Frederick Dressen, DO filed 654 Medicare Part D claims in 2023 as a Surgery Physician in Murphysboro, Illinois.
- 654
- 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.
Frederick Dressen, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
654 Top 31% higher than 69% 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)
Frederick Dressen, DO 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).
What does the federal data show about Frederick Dressen, DO?
Quality data not reportedPrimary specialty
Surgery Physician
Medicare Part D claims
654 287% vs specialty avg
Specialty distribution in Illinois
How Surgery 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 Surgery 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).
Frederick Dressen, DO appears in the CMS NPPES registry as a Surgery Physician provider holding DO credentials at 6 E SHAWNEE DR, Murphysboro, IL, 62966, with a listed phone of (618) 684-1035. NPI 1932159100 was issued on 05/11/2006.
Medicare Part D records for calendar year 2023 show 654 prescription claims written by this provider, covering 77 Medicare beneficiaries and totaling roughly $32K in drug spend.
Surgery Physician is a mid-sized specialty nationwide, with 36,199 enrolled providers across 56 states and an average of 169 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 | 1932159100 |
|---|---|
| Specialty | Surgery Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 05/11/2006 |
Hospital and facility affiliations
Facilities where Frederick Dressen, DO 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.
Expert Wound LLC
South Jordan, UT
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 Frederick Dressen, DO. To verify Frederick Dressen, DO'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
654
Total Claims
$32K
Total Drug Cost
77
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 767
- Total Day Supply
- 17,639
- Generic Drug Cost
- $6K
- Antibiotic Claims
- 57
Patient Demographics
- Average Patient Age
- 83.7 years
- Avg HCC Risk Score
- 2.51
- Gender Split
- 64% female / 36% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Frederick Dressen, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
85 claims
- Sertraline Hcl
Sertraline Hcl
41 claims
- Omeprazole 30
Omeprazole
30 claims
- Lisinopril 26
Lisinopril
26 claims
- Pantoprazole Sodium 26
Pantoprazole Sodium
26 claims
- Eliquis 22
Eliquis
22 claims
- Lamotrigine 19
Lamotrigine
19 claims
- Hydrochlorothiazide 18
Hydrochlorothiazide
18 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 85 |
| Sertraline Hcl | 41 |
| Omeprazole | 30 |
| Lisinopril | 26 |
| Pantoprazole Sodium | 26 |
| Eliquis Apixaban | 22 |
| Lamotrigine | 19 |
| Hydrochlorothiazide | 18 |
| Levetiracetam | 18 |
| Oxybutynin Chloride Er Oxybutynin Chloride | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgery Physician Overview
How Frederick Dressen, DO fits within the Surgery Physician landscape nationally.
36,199
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider
Frederick Dressen, DO's 654 claims are above the specialty average of 169.
Nearby Surgery Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Dressen.
Dr. Douglas Aach
MD
Shiloh, IL
Dr. John Abad
M.D.
Warrenville, IL
Dr. Andrew Abadier
DO
Maywood, IL
Dr. Shabirhusain Abadin
M.D.
Chicago, IL
Dr. Mohammad Ali Abbass
MD
Chicago, IL
Compare Surgery 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 Surgery 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 Frederick Dressen, DO's specialty? ▼
Frederick Dressen, DO specializes in Surgery Physician and practices in Murphysboro, Illinois. Credentials: DO.
How much does Frederick Dressen, DO prescribe under Medicare Part D? ▼
In 2023, Frederick Dressen, DO wrote 654 Medicare Part D claims totaling $32K in drug costs for 77 beneficiaries.
Where is Frederick Dressen, DO located? ▼
Frederick Dressen, DO is located at 6 E SHAWNEE DR, Murphysboro, IL, 62966. Phone: (618) 684-1035.
What is Frederick Dressen, DO's NPI number? ▼
Frederick Dressen, DO's National Provider Identifier (NPI) is 1932159100, issued on 05/11/2006.
How many Surgery Physician providers are there in the US? ▼
There are 36,199 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does Frederick Dressen, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, Frederick Dressen, DO's most frequently prescribed drugs include Levothyroxine Sodium, Sertraline Hcl, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Frederick Dressen, DO accept Medicare? ▼
Frederick Dressen, DO appears in CMS Medicare data with 654 Part D claims and 77 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Frederick Dressen, DO's credentials? ▼
Frederick Dressen, DO's NPI is 1932159100 with credentials DO. 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.