iowa
Specialties
Internist
Dr. Larry Johnston
Dr. Larry Johnston
Last updated: Aug 2, 2022

Dr. Larry Johnston

  • Gender: Male
  • Sole propriator: Yes
  • NPI: 1386036333

Dr. Larry Johnston D.O.

Internist

He is located at 1215 Duff Avenue in Ames, IA 50010. Can help patients with the following: Cholecystitis, Chronic Obstructive Pulmonary Disease (COPD), Constipation, Edema, High Blood Pressure, Peptic Ulcer. His National Provider Identifier (NPI) number is 1386036333. Appointment can be made via the phone number (515) 239-4450.

Conditions treated

Dr. Larry Johnston, 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. Larry Johnston.

  • 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)

ACA Marketplace (Obamacare/HealthCare.gov) plan networks

Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Larry Johnston as in-network for the following 2026 plans.

Health plans

Medica

Network data as of May 19, 2025, as reported by the insurer.

Show all 18 plans from Medica
Medica plans
Plan Plan type Network tier New patients
Inspire by Medica Bronze $0 Copay PCP Visits EPO · Expanded Bronze Preferred Accepting new patients
Inspire by Medica Bronze Share EPO · Expanded Bronze Preferred Accepting new patients
Inspire by Medica Expanded Bronze Standard EPO · Expanded Bronze Preferred Accepting new patients
Inspire by Medica Gold $0 Copay PCP Visits EPO · Gold Preferred Accepting new patients
Inspire by Medica Gold Share EPO · Gold Preferred Accepting new patients
Inspire by Medica Gold Standard EPO · Gold Preferred Accepting new patients
Inspire by Medica Silver $0 Copay PCP Visits EPO · Silver Preferred Accepting new patients
Inspire by Medica Silver Share EPO · Silver Preferred Accepting new patients
Inspire by Medica Silver Standard EPO · Silver Preferred Accepting new patients
Medica Insure Bronze $0 Copay PCP Visits EPO · Expanded Bronze Preferred Accepting new patients
Medica Insure Bronze Share EPO · Expanded Bronze Preferred Accepting new patients
Medica Insure Expanded Bronze Standard EPO · Expanded Bronze Preferred Accepting new patients
Medica Insure Gold $0 Copay PCP Visits EPO · Gold Preferred Accepting new patients
Medica Insure Gold Share EPO · Gold Preferred Accepting new patients
Medica Insure Gold Standard EPO · Gold Preferred Accepting new patients
Medica Insure Silver $0 Copay PCP Visits EPO · Silver Preferred Accepting new patients
Medica Insure Silver Share EPO · Silver Preferred Accepting new patients
Medica Insure Silver Standard EPO · Silver Preferred Accepting new patients

Wellmark Health Plan of Iowa, Inc.

Network data as of Sep 8, 2026, as reported by the insurer.

Show all 7 plans from Wellmark Health Plan of Iowa, Inc.
Wellmark Health Plan of Iowa, Inc. plans
Plan Plan type Network tier New patients
Wellmark Bronze HDHP HMO HSA Qualified HMO · Expanded Bronze Wellmark Blue HMO Network Accepting new patients
Wellmark Bronze Traditional HMO HMO · Expanded Bronze Wellmark Blue HMO Network Accepting new patients
Wellmark Gold Traditional HMO HMO · Gold Wellmark Blue HMO Network Accepting new patients
Wellmark Silver Traditional HMO HMO · Silver Wellmark Blue HMO Network Accepting new patients
Wellmark Standard Bronze HMO HMO · Expanded Bronze Wellmark Blue HMO Network Accepting new patients
Wellmark Standard Gold HMO HMO · Gold Wellmark Blue HMO Network Accepting new patients
Wellmark Standard Silver HMO HMO · Silver Wellmark Blue HMO 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. Larry Johnston is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.

Insurance information looks wrong? Let us know

Medicare Enrollment

Dr. Larry Johnston is enrolled to bill Medicare as a Practitioner - Gastroenterology .

Bills through: Mcfarland Clinic Pc

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

Astellas Pharma $183
Viiv Healthcare Company $121
AbbVie $65

Other

Food and Beverage $528

Additional Specialities

  • Resident

Looking for more Internists?

Out of the 55 internists in this region, here are 10 randomly selected ones for you to explore.

Dr. Tamim S. Mahayni
  • Gender: Male
  • Address: 1215 Duff Avenue Ames, 50010, IA
Dr. Shobhadarshini Gogoi
  • Gender: Female
  • Address: 1111 Duff Avenue Ames, 50010, IA
Dr. Mark Michael Guffy
  • Gender: Male
  • Address: 1111 Duff Avenue Ames, 50010, IA
Dr. Robert Bryan Graveline
  • Gender: Male
  • Address: 3008 Evergreen Circle Ames, 50014, IA
Dr. Steven Robert Wanzek
  • Gender: Male
  • Address: 1215 Duff Avenue Ames, 50010, IA
Dr. Louis Walter Banitt
  • Gender: Male
  • Address: 2514 Kellogg Avenue Ames, 50010, IA
Dr. Shauna M. Basener
  • Gender: Female
  • Address: 1215 Duff Avenue Ames, 50010, IA
Dr. Arul Mozhi Molian
  • Gender: Female
  • Address: 1215 Duff Avenue Ames, 50010, IA
Dr. Jodi A. Goldsberry
  • Gender: Female
  • Address: 1215 Duff Avenue Ames, 50010, IA
Dr. Jotesh S. Chug
  • Gender: Male
  • Address: 1111 Duff Avenue Ames, 50010, IA

Questions & Answers

What conditions does Dr. Larry Johnston treat?

Dr. Larry Johnston provides treatment for Cholecystitis, Chronic Obstructive Pulmonary Disease (COPD), Constipation, Edema, High Blood Pressure, Peptic Ulcer. For the full list see this list.

Does Dr. Larry Johnston accept insurance?

Dr. Larry Johnston is listed in-network for 25 ACA Marketplace (Obamacare/HealthCare.gov) plans from Medica, Wellmark Health Plan of Iowa, Inc.. See the Marketplace plans section for details.

Where can you meet with Dr. Larry Johnston?

Dr. Larry Johnston's office is located at 1215 Duff Avenue in Ames, IA 50010.