ohio
Specialties
Emergency Physician
Dr. John R. Desmarais
Dr. John R. Desmarais

Dr. John R. Desmarais

  • Gender: Male
  • Experience: 35 years
  • Graduated from: University Of Cincinnati College Of Medicine
  • Graduation year: 1986
  • Sole propriator: No
  • NPI: 1023085834

Dr. John R. Desmarais MD

Emergency Physician

He is located at 1430 Columbus Avenue in Washington Court House, OH 43160. Can help patients with the following: Asthma, Broken Bone, Bruises, Hyperlipidemia, Influenza, Thyroid Disease. His National Provider Identifier (NPI) number is 1023085834. Appointment can be made via the phone number (740) 333-2926. He is affiliated with 2 hospitals.

Conditions treated

Dr. John R. Desmarais, being an emergency physician, 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. John R. Desmarais.

  • Abdominal Pain
  • Acute Pain
  • Aging In Place
  • Altitude Sickness
  • Angina
  • Anxiety
  • Arthritis
  • Asthma
  • Autism
  • Birth Control Counseling
  • Brain Aneurysm
  • Brain Hemorrhage
  • Breastfeeding and Lactation
  • Broken Bone
  • Bruises
  • Choking
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Common Cold
  • Coronavirus
  • Costochondritis
  • Diabetes
  • Febrile Seizure
  • Fever
  • Frostbite
  • General Care
  • Headache
  • Heart Disease
  • Hematoma
  • High Blood Pressure
  • Hyperlipidemia
  • Hypothyroidism
  • Infant Care
  • Influenza
  • Insect Stings
  • Laceration
  • Migraine
  • Mold Exposure
  • Nausea and Vomiting
  • Obesity
  • Osteoarthritis (OA)
  • Osteoporosis
  • Phlebitis and Thrombophlebitis
  • Pregnancy
  • Prenatal Care
  • Prescription Refill
  • Thyroid Disease
  • Whiplash
  • Women's Health

ACA Marketplace (Obamacare/HealthCare.gov) plan networks

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

Health plans

Antidote Health Plan of Ohio, Inc.

Network data as of Nov 9, 2025, as reported by the insurer.

Show all 15 plans from Antidote Health Plan of Ohio, Inc.
Antidote Health Plan of Ohio, Inc. plans
Plan Plan type Network tier New patients
Bronze Complete 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx HMO · Expanded Bronze Tierone Not accepting new patients
Bronze Complete+Dental 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx HMO · Expanded Bronze Tierone Not accepting new patients
Bronze Elite 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx HMO · Expanded Bronze Tierone Not accepting new patients
Bronze Elite+Dental 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx HMO · Expanded Bronze Tierone Not accepting new patients
Bronze Standard HMO · Expanded Bronze Tierone Not accepting new patients
Gold Complete 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx HMO · Gold Tierone Not accepting new patients
Gold Complete+Dental 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx HMO · Gold Tierone Not accepting new patients
Gold Elite 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx HMO · Gold Tierone Not accepting new patients
Gold Elite+Dental 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx HMO · Gold Tierone Not accepting new patients
Gold Standard HMO · Gold Tierone Not accepting new patients
Silver Complete 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx HMO · Silver Tierone Not accepting new patients
Silver Complete+Dental 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care, $0 Core Rx HMO · Silver Tierone Not accepting new patients
Silver Elite 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx HMO · Silver Tierone Not accepting new patients
Silver Elite+Dental 4 $0 Tier-1 PCP Visits, $0 Antidote 24/7 Virtual PCP/Urg/Chronic Care/Referred Labs, $0 Advanced Rx HMO · Silver Tierone Not accepting new patients
Silver Standard HMO · Silver Tierone Not accepting new patients

CareSource

Network data as of Sep 15, 2026, as reported by the insurer.

Show all 21 plans from CareSource
CareSource plans
Plan Plan type Network tier New patients
Bronze 7500 $25 Generic Drugs HMO · Expanded Bronze Preferred Accepting new patients
Bronze 7500 $25 Generic Drugs + Adult Vision & Fitness HMO · Expanded Bronze Preferred Accepting new patients
Core Gold 1500 $10 Generic Drugs HMO · Gold Preferred Accepting new patients
Core Gold 1500 $10 Generic Drugs + Adult Vision & Fitness HMO · Gold Preferred Accepting new patients
Diabetes Gold 3000 $0 Chronic Care Drugs & Services HMO · Gold Preferred Accepting new patients
Diabetes Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness HMO · Gold Preferred Accepting new patients
Diabetes Silver 5000 $0 Chronic Care Drugs & Services HMO · Silver Preferred Accepting new patients
Diabetes Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness HMO · Silver Preferred Accepting new patients
Gold 2000 $15 Generic Drugs HMO · Gold Preferred Accepting new patients
Gold 2000 $15 Generic Drugs + Adult Vision & Fitness HMO · Gold Preferred Accepting new patients
HDHP Preventive Silver 5500 $0 Chronic Care Drugs HMO · Silver Preferred Accepting new patients
Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services HMO · Gold Preferred Accepting new patients
Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness HMO · Gold Preferred Accepting new patients
Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services HMO · Silver Preferred Accepting new patients
Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness HMO · Silver Preferred Accepting new patients
Low Premium Bronze 10600 $25 Generic Drugs HMO · Expanded Bronze Preferred Accepting new patients
Low Premium Bronze 10600 $25 Generic Drugs + Adult Vision & Fitness HMO · Expanded Bronze Preferred Accepting new patients
Low Premium Silver 6200 $3 Generic Drugs HMO · Silver Preferred Accepting new patients
Low Premium Silver 6200 $3 Generic Drugs + Adult Vision & Fitness HMO · Silver Preferred Accepting new patients
Silver 6000 $20 Generic Drugs HMO · Silver Preferred Accepting new patients
Silver 6000 $20 Generic Drugs + Adult Vision & Fitness HMO · Silver Preferred Accepting new patients

Oscar Health Insurance

Network data as of Sep 15, 2026, as reported by the insurer.

Show all 16 plans from Oscar Health Insurance
Oscar Health Insurance plans
Plan Plan type Network tier New patients
Bronze Classic 4700 HMO · Expanded Bronze Preferred Accepting new patients
Bronze Classic Standard HMO · Expanded Bronze Preferred Accepting new patients
Bronze Elite + PCP Saver Plus HMO · Expanded Bronze Preferred Accepting new patients
Bronze Simple Breathe Easy with Enhanced COPD Benefits HMO · Expanded Bronze Preferred Accepting new patients
Bronze Simple Chronic Care CKM HMO · Expanded Bronze Preferred Accepting new patients
Bronze Simple Diabetes HMO · Expanded Bronze Preferred Accepting new patients
Gold Classic HMO · Gold Preferred Accepting new patients
Gold Classic Standard HMO · Gold Preferred Accepting new patients
Gold Elite Saver Plus HMO · Gold Preferred Accepting new patients
Silver Classic Standard HMO · Silver Preferred Accepting new patients
Silver Elite Saver Plus HMO · Silver Preferred Accepting new patients
Silver Simple Breathe Easy with Enhanced COPD Benefits HMO · Silver Preferred Accepting new patients
Silver Simple Chronic Care CKM HMO · Silver Preferred Accepting new patients
Silver Simple Diabetes HMO · Silver Preferred Accepting new patients
Silver Simple PCP Saver HMO · Silver Preferred Accepting new patients
Silver Simple Women's Health with Menopause Benefits HMO · Silver Preferred 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. John R. Desmarais 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. John R. Desmarais is enrolled to bill Medicare as a Practitioner - Emergency Medicine (also registered under: Practitioner - Family Practice) .

Bills through: Adena Medical Group Llc

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

Merck $10

Other

Food and Beverage $11

Studies

UNIVERSITY OF CINCINNATI COLLEGE OF MEDICINE

Graduated in 1986

Additional Specialities

  • Family Physician

Affiliated hospitals

ADENA REGIONAL MEDICAL CENTER
272 HOSPITAL ROAD
CHILLICOTHE, 45601 OH
(740) 779-7500
COMMUNITY MEMORIAL HOSPITAL
208 N COLUMBUS ST
HICKSVILLE, 43526 OH
(419) 542-6692

Looking for more Emergency Physicians?

Here are emergency physicians in Ohio you may want to explore.

Dr. Alison Weiss
  • Gender: Female
  • Address: 100 Medical Center Drive Springfield, 45504, OH
Dr. James C. Hamilton
  • Gender: Male
  • Address: 1 Wyoming Street Dayton, 45409, OH
Dr. Michael Ido Bragagnolo
  • Gender: Male
  • Address: 1 Akron General Avenue Akron, 44307, OH
Dr. Charles M. Celestina
  • Gender: Male
  • Address: 10 Severance Circle Cleveland Heights, 44118, OH
Dr. Jon C. Taylor
  • Gender: Male
  • Address: 100 Arrow Springs Boulevard Lebanon, 45036, OH
Dr. Alexandra Leigh Abangan
  • Gender: Female
  • Address: 100 Medical Center Drive Springfield, 45504, OH
Dr. Mary E. Chellis
  • Gender: Female
  • Address: 1 Wyoming Street Dayton, 45409, OH
Dr. Michael Brian Holbrook
  • Gender: Male
  • Address: 1 Wyoming Street Dayton, 45409, OH
Dr. Usreesha Gourneni
  • Gender: Female
  • Address: 100 Jackson Pike Gallipolis, 45631, OH
Dr. Zachary Keith Robinson
  • Gender: Male
  • Address: 1 Akron General Avenue Akron, 44307, OH

Questions & Answers

What conditions does Dr. John R. Desmarais treat?

Dr. John R. Desmarais provides treatment for Asthma, Broken Bone, Bruises, Hyperlipidemia, Influenza, Thyroid Disease. For the full list see this list.

Does Dr. John R. Desmarais accept insurance?

Dr. John R. Desmarais is listed in-network for 52 ACA Marketplace (Obamacare/HealthCare.gov) plans from Antidote Health Plan of Ohio, Inc., CareSource, Oscar Health Insurance. See the Marketplace plans section for details.

Where can you meet with Dr. John R. Desmarais?

Dr. John R. Desmarais's office is located at 1430 Columbus Avenue in Washington Court House, OH 43160.

Has Dr. John R. Desmarais affiliation with hospitals?

Dr. John R. Desmarais is affiliated with ADENA REGIONAL MEDICAL CENTER. For the full list of hospitals see this list.