- Allergists & Immunologists
- SC
- Clemson, SC
- Dr. Reid Johnstone, MD
Dr. Reid Johnstone, MD
Allergy & Immunology•Male•Age 52
Allergy & Immunology
Dr. Reid Johnstone, MD is an Allergy & Immunology Specialist in Clemson, SC. Dr. Johnstone has extensive experience in Food & Drug Allergies. He is affiliated with medical facilities Prisma Health Greenville Memorial Hospital and St. Francis Downtown. His office is not accepting new patients.

Allergy Partners Of The Upstate
212 Frontage Rd Clemson, SC 29631Compare Dr. Reid Johnstone, MD with other Allergy & Immunology Specialists near you
Dr. Johnstone's Reviews
Likelihood to recommend Dr. Johnstone
3.8
Based on 8 ratings
5 Star | 63% | 63% |
4 Star | 0% | 0% |
3 Star | 13% | 13% |
2 Star | 0% | 0% |
1 Star | 25% | 25% |
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Claim your profileOverall Patient Satisfaction
Likelihood of recommending Dr. Johnstone to family and friends is 3.75 out of 5
About Me
Biography
"I come from a large family who suffered greatly with allergies growing up. Having...Read more
Specialties
- Allergy & Immunology
Education
Frequently Asked Questions
What is the best way to schedule an appointment with Dr. Reid Johnstone, MD?
Find contact information here to make an appointment.
What other Allergy & Immunology Specialists practice nearby?
Click here to compare with other Allergy & Immunology Specialists.
Does Dr. Reid Johnstone, MD accept any insurance plans?
A list of accepted insurance providers is available on the Healthgrades insurance check. It is always a good idea to verify your insurance when making an appointment.
What are Dr. Reid Johnstone, MD's top areas of expertise?
Dr. Johnstone specializes in Food & Drug Allergies. See more on Healthgrades.
What conditions does Dr. Reid Johnstone, MD treat?
Dr. Johnstone frequently treats the following conditions: Hives, Pollen Allergy, and Animal Allergies. See more on Healthgrades.
What is Dr. Reid Johnstone, MD's office address?
Dr. Johnstone's office is located at 212 Frontage Rd, Clemson, SC 29631. You can find other locations and directions on Healthgrades.
Is Dr. Reid Johnstone, MD able to provide telehealth services?
Dr. Johnstone provides telehealth services. Please contact the office to determine whether you are eligible.
Is Dr. Reid Johnstone, MD affiliated with any hospitals?
Dr. Reid Johnstone, MD is affiliated with Prisma Health Greenville Memorial Hospital and St. Francis Downtown.
Does Dr. Reid Johnstone, MD receive good ratings from patients?
There is a star rating of 3.8/5 for Dr. Reid Johnstone, MD. Patients say that the appointment wasn't rushed and they trusted the provider's decisions. See all patient feedback on Healthgrades.
Experience and Background Checks
Background Check
Frequently Treated by Dr. Johnstone
Based on treatment records, we have identified the following as areas of care that Dr. Johnstone treats more often than their peers. If you are unsure whether Dr. Johnstone treats other conditions, please contact the office at (864) 654-0066.
Food & Drug Allergies
Food and drug allergy specialists diagnose and treat patients for whom certain foods or medications trigger an immune system response that causes distressing or life-threatening symptoms.Compare with other Food & Drug Allergies specialists.
Dr. Johnstone is experienced in the area of Food & Drug Allergies. See the graph below to learn more about his experience.
Based on claims data for 16 conditions and procedures
Frequency
Frequency
Frequency
Check Dr. Johnstone's experience treating your condition or procedure
Dr. Johnstone's conditions and procedures:
- Abdominal Pain
- Acne
- Acute Bronchitis
- Acute Pharyngitis
- Acute Sinusitis
- Acute Upper Respiratory Infection
- All Headaches (incl. Migraine)
- Allergic Conjunctivitis
- Allergic Reaction
- Allergic Rhinitis
- Allergic Rhinitis Due to Food
- Allergic Rhinitis Due to Pollen
- Allergy Shots
- Allergy Testing
- Anaphylactic Egg Allergy
- Anaphylactic Fish Allergy
- Anaphylactic Food Allergies
- Anaphylactic Fruit and Vegetable Allergy
- Anaphylactic Milk and Dairy Allergy
- Anaphylactic Peanut Allergy
- Anaphylactic Shell Fish Allergy
- Anaphylactic Tree Nut Allergy
- Anaphylaxis
- Angioedema
- Animal Allergies
- Anosmia
- Anxiety
- Arthritis
- Arthritis of the Elbow
- Asthma
- Atopic Dermatitis (Eczema)
- Blepharitis
- Blood Allergy Testing
- Boil
- Breath Testing
- Breathing Disorders
- Bronchiectasis
- Bronchitis
- Canker Sore
- Celiac Disease
- Chest Pain
- Chronic Sinusitis
- Common Variable Immune Deficiency (CVID)
- Constipation
- Contact Dermatitis
- COPD (Chronic Obstructive Pulmonary Disease)
- Cough
- Dermatitis
- Dermatitis Due to Food
- Dermatitis Due to Substances Taken Internally
- Desensitization
- Diabetes Counseling
- Diabetes Type 2
- Diabetes With Renal Manifestations
- Diarrhea
- Dizziness
- Drug Allergy Testing
- Dry Skin
- Dyslipidemia
- Dysphagia
- Ear Ache
- Earwax Buildup
- Eczema and Contact Dermatitis Due to Cosmetics
- Eosinophilic Esophagitis
- Esophagitis
- Fever
- Fibromyalgia
- Food Allergy
- Food Poisoning
- Food Sensitivity Testing
- Gas-Bloat Syndrome
- Gastritis
- Gastroesophageal Reflux Disease (GERD)
- Headache
- Heart Disease
- Hives
- Hyperlipidemia
- Hypertension
- Hypogammaglobulinemia
- Hypothyroidism
- IgA Deficiency
- IgM Deficiency
- Immunodeficiency Syndromes
- Insect Sting Allergies
- Irritable Bowel Syndrome
- Itchy Skin
- Lactose Intolerance
- Latex Allergy
- Limb Pain
- Limb Swelling Caused by Fluid Overload
- Lipid Disorders
- Malaise and Fatigue
- Nasopharyngitis
- Nausea
- Nosebleed
- Obesity
- Osteoarthritis
- Osteoarthritis of Ankle and Foot
- Osteoarthritis of Shoulder
- Otitis Media
- Overweight
- Patch Testing
- Peptic Ulcer
- Pharyngitis
- Pinkeye (Conjunctivitis)
- Pneumonia
- Pollen Allergy
- Postnasal Drip
- Pulmonary Disease
- Rash
- Reflux Esophagitis
- Respiratory Diseases
- Ringworm
- Rosacea
- Scabies
- Shortness of Breath
- Sinusitis
- Skin Infections
- Sleep Apnea
- Tinea Versicolor
- Tinnitus
- Tobacco Use Disorder
- Toxic Effect of Venom
- Vertigo
- Vitamin D Deficiency
- Wheezing
Insurance Check
Search for your insurance provider
Dr. Johnstone accepts
Accepted insurance can change. Please double-check when making an appointment.
Dr. Johnstone accepts the following insurance:
- Aetna
- Ambetter
- Superior Health Plan
- Anthem
- National (BlueCard) PPO
- Blue Cross Blue Shield
- CareFirst Blue Cross Blue Shield
- HealthyBlue 2.0
- Cigna
- First Health
- First Health (Coventry Health Care)
- Humana
- Medicaid
- Medicare
- MultiPlan
- Tricare
- UnitedHealthCare
- United Healthcare
Locations
Allergy Partners Of The Upstate
- Call
- Fax
- Hours
- Mon: 8:15am - 5:00pm
- Tue: 8:15am - 5:00pm
- Wed: 8:15am - 5:00pm
- Thu: 8:15am - 5:00pm
- Fri: 8:15am - 5:00pm
- Directions
Allergy Partners Of The Upstate
Affiliated Hospitals
Dr. Johnstone is affiliated with the following hospitals. Select a hospital below to learn more.
Learn more about how Healthgrades measuresHospital Quality.68% Patients that would definitely recommend, 2% lower than the national average
3 Awards Received
80% Patients that would definitely recommend, 10% higher than the national average
26 Awards Received
Award Highlight: Outstanding Patient Experience Award™ (2021)
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