Demetrios Theodoropoulos, M.D.
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- NPI Number
- 1326299488
- Provider Type
- Individual Practitioner
- Credential
- M.D.
- Primary Specialty
- Allergy & Immunology - Clinical & Laboratory Immunology
- License Number
- 44060-20
- Practice Address
- 2727 Midwest Drive
- City, State ZIP
- Onalaska, WI 54650
- Phone
- (608) 782-2027
- Last Updated
- June 8, 2026
- Source
- Publicly available data
Demetrios Theodoropoulos, M.D. is a allergy & immunology - clinical & laboratory immunology provider located in Onalaska, WI. They offer allergy & immunology - clinical & laboratory immunology services to patients in the Onalaska area.
As a allergy & immunology - clinical & laboratory immunology provider in Onalaska, this clinician evaluates and treats patients for a range of common conditions seen in Onalaska and throughout WI.
The practice is located at 2727 Midwest Drive, Onalaska, WI 54650. Patients can call 6087822027 to schedule an appointment or use the directions link above to find the office from anywhere in the area.
Patients typically visit this provider for common reasons to schedule a visit include annual checkups, new or worsening symptoms, medication refills, lab work, preventive screenings, chronic condition management, and second opinions.
If you plan to see this provider, it is a good idea to confirm that the practice accepts your insurance and is in-network before scheduling. Coverage details vary by plan, and our quote tool can help you compare options in WI.
This profile was last verified on June 8, 2026. Provider information is sourced from publicly available data and may not reflect recent changes. Please confirm details directly with the practice before scheduling.
Call for hours and appointments. Hours may vary by provider and location.
A patient’s guide to allergy & immunology - clinical & laboratory immunology care in Onalaska, WI.
What a Allergy & Immunology - Clinical & Laboratory Immunology provider does
Healthcare providers diagnose, treat, and help prevent illness and injury. They work with patients to manage ongoing conditions, interpret test results, prescribe medications when appropriate, and coordinate care with other specialists. Most providers accept both insured and self-pay patients, and many offer telehealth visits for routine concerns.
Common conditions treated
Common conditions evaluated include high blood pressure, diabetes, respiratory infections, allergies, skin conditions, digestive complaints, headaches, and musculoskeletal pain. Providers also handle preventive screenings and routine lab work.
Common reasons to schedule a visit
Common reasons to schedule a visit include annual checkups, new or worsening symptoms, medication refills, lab work, preventive screenings, chronic condition management, and second opinions.
What to expect during a visit
During a typical visit, the provider will review your medical history, ask about current concerns, perform a relevant examination, and recommend next steps such as lifestyle changes, prescriptions, additional testing, or specialist referrals. Bring a list of current medications, recent test results, and questions you would like answered.
Insurance coverage considerations
Most major insurance plans cover preventive care and medically necessary visits, but copays, deductibles, and network restrictions vary. Contact your insurance carrier or use our quote tool to confirm a provider is in-network before scheduling.
How to choose the right allergy & immunology - clinical & laboratory immunology provider in Onalaska
When choosing a healthcare provider, look for board certification, convenient location and hours, accepted insurance plans, and a communication style that fits your preferences. Patient reviews and hospital affiliations can also help you make a confident decision.
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Insurance acceptance not listed
The public NPI registry does not include insurance acceptance data. Contact the office directly to ask if they accept your insurance plan. You can also use our quote tool to find health plans in WI.
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Common questions about Demetrios Theodoropoulos, M.D. in Onalaska, WI.
How do I make an appointment with Demetrios Theodoropoulos, M.D.?
Call Demetrios Theodoropoulos, M.D. directly at their Onalaska office to schedule a visit. You can also use the contact form on this page to send a message and the practice will respond.
Does Demetrios Theodoropoulos, M.D. accept insurance?
Provider insurance information is not included in the public NPI registry data that powers this directory. Contact the office directly to ask whether they accept your specific insurance plan. You can also use our quote tool to find health plans in WI.
What are the office hours for Demetrios Theodoropoulos, M.D. in Onalaska?
Office hours for Demetrios Theodoropoulos, M.D. in Onalaska are not currently published. Call the practice directly to confirm hours before your visit.
Is parking available at Demetrios Theodoropoulos, M.D.'s Onalaska location?
Most provider offices in Onalaska offer on-site or nearby street parking. Call Demetrios Theodoropoulos, M.D. in Onalaska ahead of time to confirm parking options and accessibility accommodations.
Does Demetrios Theodoropoulos, M.D. accept walk-in appointments?
Walk-in availability for allergy & immunology - clinical & laboratory immunology providers varies by location and day. Call ahead to confirm same-day availability before visiting.
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Claim ProfileData is sourced from publicly available records. Public records do not confirm active license status, quality of care, insurance acceptance, or network participation. Please verify details directly with the provider before scheduling. Last updated June 8, 2026.