Dr. Gregory S. Johnson
- Gender: Male
- Experience: 16 years
- Graduated from: Ohio University, College Of Osteopathic Medicine
- Graduation year: 2005
- Sole propriator: Yes
- NPI: 1043485501
Dr. Gregory S. Johnson D.O.
Hospitalist
He is located at 875 8th Street Northeast in Massillon, OH 44646. Can help patients with the following: Chest Pain, Diarrhea, Edema, General Care, Osteoporosis, Urinary Tract Infection (UTI). His National Provider Identifier (NPI) number is 1043485501. Appointment can be made via the phone number (330) 834-4798. He is affiliated with 1 hospitals.
Conditions treated
Dr. Gregory S. Johnson, being an hospitalist, 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. Gregory S. Johnson.
- 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. Gregory S. Johnson as in-network for the following 2026 plans.
Health plans
CareSource
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 21 plans from CareSource
| 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. Gregory S. Johnson 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. Gregory S. Johnson is enrolled to bill Medicare as a Practitioner - Internal Medicine (also registered under: Practitioner - Emergency Medicine, Practitioner - Osteopathic Manipulative Medicine) .
Bills through: Inpatient Medical Services Inc
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
| AstraZeneca | $57 |
| Janssen | $36 |
| Novartis | $11 |
Other
| Food and Beverage | $106 |
Studies
OHIO UNIVERSITY, COLLEGE OF OSTEOPATHIC MEDICINE
Graduated in 2005Additional Specialities
- Internist
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Questions & Answers
Does Dr. Gregory S. Johnson accept insurance?
Dr. Gregory S. Johnson is listed in-network for 21 ACA Marketplace (Obamacare/HealthCare.gov) plans from CareSource. See the Marketplace plans section for details.
What conditions does Dr. Gregory S. Johnson treat?
Dr. Gregory S. Johnson provides treatment for Chest Pain, Diarrhea, Edema, General Care, Osteoporosis, Urinary Tract Infection (UTI). For the full list see this list.
Where can you meet with Dr. Gregory S. Johnson?
Dr. Gregory S. Johnson's office is located at 875 8th Street Northeast in Massillon, OH 44646.
Has Dr. Gregory S. Johnson affiliation with hospitals?
Dr. Gregory S. Johnson is affiliated with UNIVERSITY HOSPITALS PORTAGE MEDICAL CENTER.