Dr. Douglas T. Johnston
- Gender: Male
- Experience: 20 years
- Graduated from: New York College Of Osteo Medicine Of New York Institute Of Technology
- Graduation year: 2001
- Sole propriator: No
- NPI: 1124048079
Dr. Douglas T. Johnston DO
Allergist and Immunologist
He is located at 200 Patewood Drive Suite A140 in Greenville, SC 29615. Can help patients with the following: Fever, Heart Disease, High Blood Pressure, Peanut Allergy, Plant Contact Allergy, Sinusitis. His National Provider Identifier (NPI) number is 1124048079. Appointment can be made via the phone number (864) 454-5125. He is affiliated with 1 practices.
Conditions treated
Dr. Douglas Thomas Johnston, being an allergist and immunologist, 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. Douglas T. Johnston.
- Abdominal Pain
- Acute Pain
- Allergic Reaction
- Allergies
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Celiac Disease
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Chronic Rhinitis
- Common Cold
- Constipation
- Contact Dermatitis
- Cystitis
- Diarrhea
- Edema
- Eosinophilic Esophagitis
- Eye Allergy
- Fever
- Food Allergies
- Food Allergy
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Hay Fever
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Lactose Intolerance
- Migraine
- Mold Exposure
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peanut Allergy
- Peptic Ulcer
- Pink Eye
- Plant Contact Allergy
- Prescription Refill
- Sinusitis
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. Douglas T. Johnston
Insurances Accepted by Dr. Douglas T. Johnston
- Medicare
Medicare Enrollment
Dr. Douglas T. Johnston is enrolled to bill Medicare as a Practitioner - Allergy/immunology (also registered under: Practitioner - Internal Medicine) .
Bills through: Prisma Health University Medical Group
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.
Payments received
Drug payment
| Shire North American Group | $314074 |
| Csl Behring | $60132 |
| Pharming Healthcare | $18992 |
Other
| Promotional Speaking or Service | $217450 |
| Consulting | $78350 |
| Other | $73840 |
| Travel and Lodging | $59746 |
| Food and Beverage | $16043 |
Studies
NEW YORK COLLEGE OF OSTEO MEDICINE OF NEW YORK INSTITUTE OF TECHNOLOGY
Graduated in 2001Additional Specialities
- Internist
Looking for more Allergist and Immunologists?
Here are allergist and immunologists in South Carolina you may want to explore.
- Gender: Male
- Address: 12 Twin Pines Court Hilton Head, 29928, SC
- Gender: Male
- Address: Suite 200 1 Richland Medical Park Drive Columbia, 29203, SC
- Gender: Male
- Address: 7510 North Forest Drive North Charleston, 29420, SC
- Gender: Male
- Address: Suite 420 800 East Cheves Street Florence, 29506, SC
- Gender: Female
- Address: 7555 Northside Drive North Charleston, 29420, SC
- Gender: Male
- Address: 10 Halton Green Way Greenville, 29607, SC
- Gender: Male
- Address: 1202 East Butler Road Greenville, 29607, SC
- Gender: Female
- Address: 46 Markfield Drive Suite A Charleston, 29407, SC
- Gender: Male
- Address: Suite 200 1 Richland Medical Park Drive Columbia, 29203, SC
- Gender: Male
- Address: 534 Woods Lake Road Greenville, 29607, SC
Questions & Answers
What conditions does Dr. Douglas Thomas Johnston treat?
Dr. Douglas Thomas Johnston provides treatment for Fever, Heart Disease, High Blood Pressure, Peanut Allergy, Plant Contact Allergy, Sinusitis. For the full list see this list.
Does Dr. Douglas Thomas Johnston accept patients with Medicare?
Yes, Dr. Douglas Thomas Johnston accepts patients with Medicare.
Where can you meet with Dr. Douglas Thomas Johnston?
Dr. Douglas Thomas Johnston's office is located at 200 Patewood Drive Suite A140 in Greenville, SC 29615.
Does Dr. Douglas Thomas Johnston have affiliation with practices?
Dr. Douglas Thomas Johnston is affiliated with Asthma & Allergy Specialists PA.