Dr. Timothy L. Irwin
- Gender: Male
- Experience: 16 years
- Graduated from: University Of Iowa, Rj & L Carver College Of Medicine
- Graduation year: 2005
- Sole propriator: No
- NPI: 1063622801
Dr. Timothy L. Irwin M.D.
Internist
He is located at 1104 West 8th Street in Yankton, SD 57078. Can help patients with the following: Abdominal Pain, Atherosclerosis, Chronic Obstructive Pulmonary Disease (COPD), Constipation, Gastroesophageal Reflux Disease (GERD), Nausea and Vomiting. His National Provider Identifier (NPI) number is 1063622801. Appointment can be made via the phone number (605) 665-7841. He is affiliated with 1 practices and 5 hospitals.
Conditions treated
Dr. Timothy Lee Irwin, being an internist, 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. Timothy L. Irwin.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. Timothy L. Irwin
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Timothy L. Irwin as in-network for the following 2026 plans.
Health plans
Avera Health Plans
Network data as of Jan 23, 2026, as reported by the insurer.
Show all 23 plans from Avera Health Plans
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| ConnectPlus $0 Gold (2 plan variants) | PPO · Gold | Commercial | Accepting new patients |
| ConnectPlus $0 Silver (2 plan variants) | PPO · Silver | Commercial | Accepting new patients |
| ConnectPlus $10,600 HSA Eligible HDHP (2 plan variants) | PPO · Catastrophic | Commercial | Accepting new patients |
| ConnectPlus $1800 (2 plan variants) | PPO · Gold | Commercial | Accepting new patients |
| ConnectPlus $4500 (2 plan variants) | PPO · Silver | Commercial | Accepting new patients |
| ConnectPlus $6500 HSA Eligible HDHP (2 plan variants) | PPO · Expanded Bronze | Commercial | Accepting new patients |
| ConnectPlus $7500 HSA Eligible HDHP (2 plan variants) | PPO · Expanded Bronze | Commercial | Accepting new patients |
| ConnectPlus MyWeighForward $2000 (2 plan variants) | PPO · Gold | Commercial | Accepting new patients |
| ConnectPlus MyWeighForward $6000 (2 plan variants) | PPO · Silver | Commercial | Accepting new patients |
| ConnectPlus Standard $2000 (2 plan variants) | PPO · Gold | Commercial | Accepting new patients |
| ConnectPlus Standard $6000 (2 plan variants) | PPO · Silver | Commercial | Accepting new patients |
| ConnectPlus Standard $7500 HSA Eligible HDHP (2 plan variants) | PPO · Expanded Bronze | Commercial | Accepting new patients |
| DirectConnect $0 Gold | HMO · Gold | Direct | Accepting new patients |
| DirectConnect $0 Silver | HMO · Silver | Direct | Accepting new patients |
| DirectConnect $1800 | HMO · Gold | Direct | Accepting new patients |
| DirectConnect $4500 | HMO · Silver | Direct | Accepting new patients |
| DirectConnect $6500 HSA Eligible HDHP | HMO · Expanded Bronze | Direct | Accepting new patients |
| DirectConnect $7500 HSA Eligible HDHP | HMO · Expanded Bronze | Direct | Accepting new patients |
| DirectConnect MyWeighForward $2000 | HMO · Gold | Direct | Accepting new patients |
| DirectConnect MyWeighForward $6000 | HMO · Silver | Direct | Accepting new patients |
| DirectConnect Standard $2000 | HMO · Gold | Direct | Accepting new patients |
| DirectConnect Standard $6000 | HMO · Silver | Direct | Accepting new patients |
| DirectConnect Standard $7500 HSA Eligible HDHP | HMO · Expanded Bronze | Direct | Accepting new patients |
Wellmark of South Dakota, Inc.
Network data as of Sep 8, 2026, as reported by the insurer.
Show all 7 plans from Wellmark of South Dakota, Inc.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Wellmark Bronze HDHP EPO HSA Qualified (2 plan variants) | EPO · Expanded Bronze | Bluerx Essentials | Accepting new patients |
| Wellmark Bronze Traditional EPO (2 plan variants) | EPO · Expanded Bronze | Bluerx Essentials | Accepting new patients |
| Wellmark Gold Traditional EPO (2 plan variants) | EPO · Gold | Bluerx Essentials | Accepting new patients |
| Wellmark Silver Traditional EPO (2 plan variants) | EPO · Silver | Bluerx Essentials | Accepting new patients |
| Wellmark Standard Bronze EPO (2 plan variants) | EPO · Expanded Bronze | Bluerx Essentials | Accepting new patients |
| Wellmark Standard Gold EPO (2 plan variants) | EPO · Gold | Bluerx Essentials | Accepting new patients |
| Wellmark Standard Silver EPO (2 plan variants) | EPO · Silver | Bluerx Essentials | 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. Timothy L. Irwin 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. Timothy L. Irwin is enrolled to bill Medicare as a Practitioner - Cardiovascular Disease (cardiology) .
Bills through: Sacred Heart Health Services
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
| Siemens | $466 |
| Novartis | $157 |
| E.R. Squibb \u0026 Sons | $143 |
Other
| Food and Beverage | $659 |
| Travel and Lodging | $446 |
Studies
UNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated in 2005
Affiliated hospitals
Looking for more Internists?
Out of the 20 internists in this region, here are 10 randomly selected ones for you to explore.
- Gender: Female
- Address: 1104 West 8th Street Yankton, 57078, SD
- Gender: Male
- Address: 1104 West 8th Street Yankton, 57078, SD
- Gender: Female
- Address: 1104 West 8th Street Yankton, 57078, SD
- Gender: Female
- Address: 1104 West 8th Street Yankton, 57078, SD
- Gender: Male
- Address: 1104 West 8th Street Yankton, 57078, SD
- Gender: Male
- Address: 1104 West 8th Street Yankton, 57078, SD
- Gender: Male
- Address: 1104 West 8th Street Yankton, 57078, SD
- Gender: Male
- Address: 1104 West 8th Street Yankton, 57078, SD
- Gender: Male
- Address: 1104 West 8th Street Yankton, 57078, SD
Questions & Answers
Does Dr. Timothy Lee Irwin accept patients with Wellmark of South Dakota, Inc.?
Yes, Dr. Timothy Lee Irwin is listed in-network for Wellmark of South Dakota, Inc. through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Where can you meet with Dr. Timothy Lee Irwin?
Dr. Timothy Lee Irwin's office is located at 1104 West 8th Street in Yankton, SD 57078.
Has Dr. Timothy Lee Irwin affiliation with hospitals?
Dr. Timothy Lee Irwin is affiliated with AVERA SACRED HEART HOSPITAL. For the full list of hospitals see this list.
Does Dr. Timothy Lee Irwin have affiliation with practices?
Dr. Timothy Lee Irwin is affiliated with Yankton Medical Clinic.
What conditions does Dr. Timothy Lee Irwin treat?
Dr. Timothy Lee Irwin provides treatment for Abdominal Pain, Atherosclerosis, Chronic Obstructive Pulmonary Disease (COPD), Constipation, Gastroesophageal Reflux Disease (GERD), Nausea and Vomiting. For the full list see this list.