Dr. Lars E. Peterson
- Gender: Male
- Experience: 21 years
- Graduated from: Creighton University School Of Medicine
- Graduation year: 2000
- Sole propriator: No
- NPI: 1023110640
Dr. Lars E. Peterson MD
Internist
He is located at 255 North 30th Street in Laramie, WY 82072. Can help patients with the following: Asthma, Bladder Control, Chronic Obstructive Pulmonary Disease (COPD), Hyponatremia, Migraine, Peptic Ulcer. His National Provider Identifier (NPI) number is 1023110640. Appointment can be made via the phone number (307) 742-2141. He is affiliated with 2 practices and 1 hospitals.
Conditions treated
Dr. Lars E. Peterson, 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. Lars E. Peterson.
- 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. Lars E. Peterson
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Lars E. Peterson as in-network for the following 2026 plans.
Health plans
Blue Cross Blue Shield of Wyoming
Network data as of Sep 11, 2026, as reported by the insurer.
Show all 11 plans from Blue Cross Blue Shield of Wyoming
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| BlueSelect Bronze Basic | PPO · Bronze | In Network | Accepting new patients |
| BlueSelect Bronze Core | PPO · Expanded Bronze | In Network | Accepting new patients |
| BlueSelect Expanded Bronze Standard without Kid's Dental | PPO · Expanded Bronze | In Network | Accepting new patients |
| BlueSelect Gold Core | PPO · Gold | In Network | Accepting new patients |
| BlueSelect Gold HealthPlus | PPO · Gold | In Network | Accepting new patients |
| BlueSelect Gold Standard without Kid's Dental | PPO · Gold | In Network | Accepting new patients |
| BlueSelect Silver Classic | PPO · Silver | In Network | Accepting new patients |
| BlueSelect Silver Classic without Kid's Dental | PPO · Silver | In Network | Accepting new patients |
| BlueSelect Silver HealthPlus | PPO · Silver | In Network | Accepting new patients |
| BlueSelect Silver HealthPlus without Kid's Dental | PPO · Silver | In Network | Accepting new patients |
| BlueSelect Silver Standard without Kid's Dental | PPO · Silver | In 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. Lars E. Peterson 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. Lars E. Peterson is enrolled to bill Medicare as a Practitioner - Internal Medicine .
Bills through: Ivinson Memorial Hospital
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.
Studies
CREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated in 2000
Looking for more Internists?
There are 6 other internists in this region.
- Gender: Male
- Address: 3116 Willett Drive Laramie, 82072, WY
- Gender: Male
- Address: 3116 Willett Drive Laramie, 82072, WY
- Gender: Male
- Address: 255 North 30th Street Laramie, 82072, WY
- Gender: Female
- Address: 255 North 30th Street Laramie, 82072, WY
- Gender: Female
- Address: 3116 Willett Drive Laramie, 82072, WY
- Gender: Male
- Address: 3116 Willett Drive Laramie, 82072, WY
Questions & Answers
Has Dr. Lars E. Peterson affiliation with hospitals?
Dr. Lars E. Peterson is affiliated with IVINSON MEMORIAL HOSPITAL.
Where can you meet with Dr. Lars E. Peterson?
Dr. Lars E. Peterson's office is located at 255 North 30th Street in Laramie, WY 82072.
Does Dr. Lars E. Peterson accept patients with Blue Cross Blue Shield of Wyoming?
Yes, Dr. Lars E. Peterson is listed in-network for Blue Cross Blue Shield of Wyoming through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
What conditions does Dr. Lars E. Peterson treat?
Dr. Lars E. Peterson provides treatment for Asthma, Bladder Control, Chronic Obstructive Pulmonary Disease (COPD), Hyponatremia, Migraine, Peptic Ulcer. For the full list see this list.
Does Dr. Lars E. Peterson have affiliation with practices?
Dr. Lars E. Peterson is affiliated with UCHealth Medical Center of the Rockies. For the full list of practices see this list.