Demetrios Spyridon Theodoropoulos, M.D.
Clinical & Laboratory Immunology
Demetrios Spyridon Theodoropoulos is a Clinical & Laboratory Immunology specialist based in Onalaska, WI with over 39 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Demetrios Spyridon Theodoropoulos, M.D. has practiced allergy & immunology for 39+ years, working in group practice. With 39+ years of experience, he has been practicing in the Onalaska area. Among his Medicare patients, common conditions include high cholesterol, hypertension, and arthritis (per CMS data).
Older · 3814dNPPES updated 2015-12-14 · verify NPI on CMS · Verify license at Wisconsin Medical Examining Board
Contact & Location
Practice Location
2727 Midwest Drive, Onalaska, WI 54650
How Does This Doctor Compare?
Generic Rx
↑ Higher = better68.8%
Wisconsin avg: 82.2 · US avg: 82.8
⚠ Lower than most doctors nationally(-14 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
254
Unique beneficiaries
Standard volumePrescription Recipients
167
Patients prescribed
Prescriptions Written
647
Total claims
Total Medicare drug cost: $81k
Percentile rankings compared against 779 reporting peers in Wisconsin.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-12%) — less common here
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-14%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-3%) — less common here
A condition causing airway inflammation, wheezing, and difficulty breathing
US avg: 13.3%↑ More patients than average (+27%) — a focus area for this doctor
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-11%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$1.0k received from industry
33 transactions reported in 2024 ·Moderate tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Demetrios Spyridon Theodoropoulos's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
39 years in practice
Senior practitioner
An allergy and immunology physician who specializes in clinical and laboratory immunology disease management..
Taxonomy: 207KI0005X
Virtual Clinical & Laboratory Immunology Care With Demetrios Spyridon Theodoropoulos
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Demetrios Spyridon Theodoropoulos for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Onalaska required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Demetrios Spyridon Theodoropoulos
NPI records show Dr. Theodoropoulos as active with telehealth listed in Onalaska, WI. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (608) 782-2027.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Demetrios Spyridon Theodoropoulos
Practice Location
2727 Midwest Drive, Onalaska, WI 54650
Mailing Address
2727 Midwest Drive, Onalaska, WI 54650
This is a provider directory. Contact the office directly to schedule appointments.
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