Dr. Demetrios S. Theodoropoulos
- Gender: Male
- Experience: 34 years
- Graduation year: 1987
- Sole propriator: No
- NPI: 1326299488
Dr. Demetrios S. Theodoropoulos M.D.
Allergist and Immunologist
He is located at 2727 Midwest Drive in Onalaska, WI 54650. Can help patients with the following: Allergies, Contact Dermatitis, Eye Allergy, Hay Fever, Lactose Intolerance, Sinusitis. His National Provider Identifier (NPI) number is 1326299488. Appointment can be made via the phone number (608) 782-2027. He is affiliated with 1 practices.
Conditions treated
Dr. Demetrios Spyridon Theodoropoulos, being an allergist and immunologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Demetrios S. Theodoropoulos.
- Allergic Reaction
- Allergies
- Asthma
- Celiac Disease
- Chronic Rhinitis
- Contact Dermatitis
- Eosinophilic Esophagitis
- Eye Allergy
- Food Allergies
- Food Allergy
- Hay Fever
- Lactose Intolerance
- Mold Exposure
- Peanut Allergy
- Pink Eye
- Plant Contact Allergy
- Sinusitis
Procedures Performed by Dr. Demetrios S. Theodoropoulos
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Demetrios S. Theodoropoulos as in-network for the following 2026 plans.
Health plans
Anthem Blue Cross and Blue Shield
Network data as of Mar 25, 2026, as reported by the insurer.
Show all 9 plans from Anthem Blue Cross and Blue Shield
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Anthem Bronze Preferred/Broad 5000 (3 Free PCP Visits + $0 Select Drugs + Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Bronze Preferred/Broad HSA (+ Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Bronze Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Gold Preferred/Broad 1000 ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Gold | Participating | Accepting new patients |
| Anthem Gold Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Gold | Participating | Accepting new patients |
| Anthem Heart Healthy Bronze Preferred/Broad 0 Med Ded ($0 Virtual PCP+$0 Select Drugs+Incentives) | POS · Expanded Bronze | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad 4000 ($0 PCP Visits + $0 Select Drugs + Incentives) | POS · Silver | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad 5500 ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Silver | Participating | Accepting new patients |
| Anthem Silver Preferred/Broad Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) | POS · Silver | Participating | Accepting new patients |
HealthPartners
Network data as of Jul 22, 2020, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Oak $1,300 Gold | PPO · Gold | Network | Accepting new patients |
| Oak $2,000 Standard Gold | PPO · Gold | Network | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Demetrios S. Theodoropoulos is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Demetrios S. Theodoropoulos is enrolled to bill Medicare as a Practitioner - Allergy/immunology .
Bills through: Allergy Associates Holdings, Ltd
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Boehringer Ingelheim | $239 |
| GlaxoSmithKline | $195 |
| AstraZeneca | $163 |
Other
| Food and Beverage | $1448 |
Studies
Graduated in 1987
Looking for more Allergist and Immunologists?
There are 7 other allergist and immunologists in this region.
- Gender: Female
- Address: 2727 Midwest Drive Onalaska, 54650, WI
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- Address: 2727 Midwest Drive Onalaska, 54650, WI
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- Address: 2727 Midwest Drive Onalaska, 54650, WI
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- Address: 311 Gundersen Drive Onalaska, 54650, WI
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Questions & Answers
Does Dr. Demetrios Spyridon Theodoropoulos have affiliation with practices?
Dr. Demetrios Spyridon Theodoropoulos is affiliated with Allergy Associates of LA Crosse.
What conditions does Dr. Demetrios Spyridon Theodoropoulos treat?
Dr. Demetrios Spyridon Theodoropoulos provides treatment for Allergies, Contact Dermatitis, Eye Allergy, Hay Fever, Lactose Intolerance, Sinusitis. For the full list see this list.
Does Dr. Demetrios Spyridon Theodoropoulos accept patients with HealthPartners?
Yes, Dr. Demetrios Spyridon Theodoropoulos is listed in-network for HealthPartners through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Where can you meet with Dr. Demetrios Spyridon Theodoropoulos?
Dr. Demetrios Spyridon Theodoropoulos's office is located at 2727 Midwest Drive in Onalaska, WI 54650.