Dr. Thomas Paul Marnejon
Dr. Thomas P. Marnejon

Dr. Thomas P. Marnejon

  • Gender: Male
  • Experience: 34 years
  • Graduated from: Philadelphia College Of Osteopathic Medicine
  • Graduation year: 1987
  • Sole propriator: No
  • NPI: 1891898607

Dr. Thomas P. Marnejon DO

Internist

He is located at 1001 Covington Street in Youngstown, OH 44510. Can help patients with the following: Abdominal Pain, Diarrhea, Edema, Gastroesophageal Reflux Disease (GERD), High Blood Pressure, Peptic Ulcer. His National Provider Identifier (NPI) number is 1891898607. Appointment can be made via the phone number (330) 480-2616. He is affiliated with 1 practices and 1 hospitals.

Conditions treated

Dr. Thomas Paul Marnejon, 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. Thomas P. Marnejon.

  • 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. Thomas P. Marnejon

ACA Marketplace (Obamacare/HealthCare.gov) plan networks

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

Health plans

Ambetter from Buckeye Health Plan

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

Show all 16 plans from Ambetter from Buckeye Health Plan
Ambetter from Buckeye Health Plan plans
Plan Plan type Network tier New patients
Choice Bronze HSA HMO · Expanded Bronze Preferred Not accepting new patients
Choice Bronze HSA + Vision + Adult Dental HMO · Expanded Bronze Preferred Not accepting new patients
Clear Gold HMO · Gold Preferred Not accepting new patients
Clear Gold + Vision + Adult Dental HMO · Gold Preferred Not accepting new patients
Complete Gold HMO · Gold Preferred Not accepting new patients
Complete Gold + Vision + Adult Dental HMO · Gold Preferred Not accepting new patients
Complete Silver HMO · Silver Preferred Not accepting new patients
Complete Silver + Vision + Adult Dental HMO · Silver Preferred Not accepting new patients
Everyday Bronze HMO · Expanded Bronze Preferred Not accepting new patients
Everyday Bronze + Vision + Adult Dental HMO · Expanded Bronze Preferred Not accepting new patients
Standard Expanded Bronze HMO · Expanded Bronze Preferred Not accepting new patients
Standard Expanded Bronze + Vision + Adult Dental HMO · Expanded Bronze Preferred Not accepting new patients
Standard Gold HMO · Gold Preferred Not accepting new patients
Standard Gold + Vision + Adult Dental HMO · Gold Preferred Not accepting new patients
Standard Silver HMO · Silver Preferred Not accepting new patients
Standard Silver + Vision + Adult Dental HMO · Silver Preferred Not accepting new patients

Anthem Blue Cross and Blue Shield

Network data as of Sep 10, 2026, as reported by the insurer.

Show all 11 plans from Anthem Blue Cross and Blue Shield
Anthem Blue Cross and Blue Shield plans
Plan Plan type Network tier New patients
Anthem Bronze Pathway 10600 ($0 Virtual PCP + $0 Select Drugs) HMO · Bronze Participating Accepting new patients
Anthem Bronze Pathway 10600 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs) HMO · Bronze Participating Accepting new patients
Anthem Bronze Pathway 7500 Standard ($0 Virtual PCP + $0 Select Drugs) HMO · Expanded Bronze Participating Accepting new patients
Anthem Bronze Pathway 8500 for HSA HMO · Expanded Bronze Participating Accepting new patients
Anthem Gold Pathway 2000 Standard ($0 Virtual PCP + $0 Select Drugs) HMO · Gold Participating Accepting new patients
Anthem Heart Healthy Bronze Pathway 6000 ($0 Virtual PCP + $0 Select Drugs) HMO · Expanded Bronze Participating Accepting new patients
Anthem Heart Healthy Silver Pathway 5000 ($0 Virtual PCP + $0 Select Drugs) HMO · Silver Participating Accepting new patients
Anthem Silver Pathway 4000 ($0 Virtual PCP + $0 Select Drugs) HMO · Silver Participating Accepting new patients
Anthem Silver Pathway 4000 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs) HMO · Silver Participating Accepting new patients
Anthem Silver Pathway 5500 for HSA HMO · Silver Participating Accepting new patients
Anthem Silver Pathway 6000 Standard ($0 Virtual PCP + $0 Select Drugs) HMO · Silver Participating Accepting new patients

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

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. Thomas P. Marnejon 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. Thomas P. Marnejon is enrolled to bill Medicare as a Practitioner - Internal Medicine .

Bills through: Mercy Health Physicians Youngstown, 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.

Studies

PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE

Graduated in 1987

Affiliated practices

Mercy Health - Howland
1932 Niles Cortland Road Northeast
Warren, 44484 OH
(330) 306-5300

Affiliated hospitals

ST ELIZABETH YOUNGSTOWN HOSPITAL
1044 BELMONT AVENUE
YOUNGSTOWN, 44501 OH
(330) 480-3962

Looking for more Internists?

Out of the 30 internists in this region, here are 10 randomly selected ones for you to explore.

Dr. Jon William Arnott
  • Gender: Male
  • Address: 1001 Covington Street Youngstown, 44510, OH
Dr. Yan Jiang
  • Gender: Female
  • Address: 8240 North Creek Drive Cincinnati, 45236, OH
Dr. Bhargava Ravi
  • Gender: Male
  • Address: Suite 400 550 Parmalee Avenue Youngstown, 44510, OH
Dr. Yeji Cha
  • Gender: Female
  • Address: 7912 West Lane Suite 221 Stockton, 95210, CA
Dr. Gilberto Josue Umanzor Umanzor
  • Gender: Male
  • Address: 1145 South Utica Avenue Suite 460 Tulsa, 74104, OK
Dr. Kathie Ann Nelson
  • Gender: Female
  • Address: 1001 Covington Street Youngstown, 44510, OH
Dr. Nene Azubuike
  • Gender: Female
  • Address: 1001 Covington Street Youngstown, 44510, OH
Dr. Maharabe Ariyaratne
  • Gender: Female
  • Address: 1001 Covington Street Youngstown, 44510, OH
Dr. Patrick Louis Brine
  • Gender: Male
  • Address: 1001 Covington Street Youngstown, 44510, OH
Dr. Gurvijay Singh
  • Gender: Male
  • Address: 5555 Grossmont Center Drive La Mesa, 91942, CA

Questions & Answers

Does Dr. Thomas Paul Marnejon accept patients with Ambetter from Buckeye Health Plan?

Yes, Dr. Thomas Paul Marnejon is listed in-network for Ambetter from Buckeye Health Plan through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.

Does Dr. Thomas Paul Marnejon have affiliation with practices?

Dr. Thomas Paul Marnejon is affiliated with Mercy Health - Howland.

Where can you meet with Dr. Thomas Paul Marnejon?

Dr. Thomas Paul Marnejon's office is located at 1001 Covington Street in Youngstown, OH 44510.

Has Dr. Thomas Paul Marnejon affiliation with hospitals?

Dr. Thomas Paul Marnejon is affiliated with ST ELIZABETH YOUNGSTOWN HOSPITAL.

What conditions does Dr. Thomas Paul Marnejon treat?

Dr. Thomas Paul Marnejon provides treatment for Abdominal Pain, Diarrhea, Edema, Gastroesophageal Reflux Disease (GERD), High Blood Pressure, Peptic Ulcer. For the full list see this list.