1. Allergists & Immunologists
  2. SC
  3. Clemson Allergists & Immunologists
  4. Dr. Reid Johnstone, MD

Dr. Reid Johnstone, MD

Allergy & Immunology •  Male • Age 49
  
Dr. Johnstone
Accepting new patients
Environmental Allergies, Upper Respiratory Conditions, and More
Telehealth services available

Allergy Partners Of The Upstate

212 Frontage Rd Clemson, SC 29631

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Dr. Reid Johnstone, MD is a Allergy & Immunology Specialist in Clemson, SC. Dr. Johnstone has more experience with Environmental Allergies, Upper Respiratory Conditions, and Food and Drug Allergies than other specialists in his area. He is affiliated with medical facilities Prisma Health Greenville Memorial Hospital and St. Francis Downtown. He is accepting new patients and has indicated that he accepts telehealth appointments. Be sure to call ahead with Dr. Johnstone to book an appointment.

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Dr. Johnstone's Reviews

Likelihood to recommend Dr. Johnstone

3.6

Based on 7 ratings

5 Stars
57.142857142857146%
(4)
4 Stars
0%
(0)
3 Stars
14.285714285714286%
(1)
2 Stars
0%
(0)
1 Star
28.571428571428573%
(2)
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Absolutely amazing. It is super rare to find a physician that truly cares. I would recommend him to anyone.
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Anonymous – Jun 22, 2020
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My one office visit for a severe rash and itching condition was a Complete Waste of my time. I never had a doctor say "I'm Stumped" about a condition. He commented about having a several hundred national network of doctors he could consult to find a cause. Told me he would call me back, Never Did! I had to call back several times with no response or answer. He seemed to have no experience or qualifications in this medical field, only confusion and lack of professional courtesy to respond back.
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SAM in Clemson, SC – Feb 07, 2019
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About Me

Biography

Dr. Johnstone is a native of South Carolina and Greenville.

"I come from a large family who suffered greatly with allergies growing up. Having seen this first hand, drew my interest to allergies and asthma as a specialty."

He ...Read more

Specialties

  • Allergy & Immunology
  • Internal Medicine

Board Certifications

  • Allergy & Immunology
Learn why a board certification matters

Education

2002
McG Health Inc
Fellowship Hospital
2000
Greenville Memorial Hospital
Residency Hospital
1998
Greenville Memorial Hospital
Internship Hospital
1997
College of Charleston
Undergraduate School

Awards

  • Healthgrades Honor Roll
Learn more about recognized doctors

Frequently Asked Questions

What other Allergy & Immunology Specialists practice nearby?

Does Dr. Reid Johnstone, MD offer telehealth services?

What are Dr. Reid Johnstone, MD's top areas of care?

Insurance Check

Search for your insurance provider

Dr. Johnstone accepts

Accepted insurance can change. Please double-check when making an appointment.

(864) 654-0066

Dr. Johnstone accepts the following insurance:

Aetna
Aetna HMO
Choice Plus POS II
Anthem
National (BlueCard) PPO
Blue Cross Blue Shield
Blue Card PPO
CareFirst Blue Cross Blue Shield
HealthyBlue 2.0
HealthyBlue Advantage
Cigna
Cigna HMO
Cigna PPO
Open Access Plus
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
Humana
Choice Care PPO
Medicaid
MultiPlan
MultiPlan PPO
PHCS Network PPO
Tricare
UnitedHealthCare
United Healthcare

Background Check

Healthgrades does not collect malpractice claims information for South Carolina
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Practice Areas

Environmental Allergies

Compare with other Environmental Allergies specialists.

Typically treats 76% more than similar doctors

Based on claims data for 8 conditions and procedures

TreatmentsTreatment Frequency
Hives
very high
very high

Treatment Frequency

Dr. Johnstone treats Hives more than 98% of their peers

Dr. Johnstone treats this condition more than 98% of their peers

Pollen Allergy
very high
very high

Treatment Frequency

Dr. Johnstone treats Pollen Allergy more than 96% of their peers

Dr. Johnstone treats this condition more than 96% of their peers

Animal Allergies
high
high

Treatment Frequency

Dr. Johnstone treats Animal Allergies more than 88% of their peers

Dr. Johnstone treats this condition more than 88% of their peers

View all Environmental Allergies treatments

Upper Respiratory Conditions

Upper respiratory specialists diagnose and treat conditions such as infections, sinusitis, allergic rhinitis, and whooping cough (pertussis) that affect the upper part of the respiratory system, including the nasal passages, larynx, and lungs.Compare with other Upper Respiratory Conditions specialists.

Typically treats 71% more than similar doctors

Based on claims data for 3 conditions and procedures

TreatmentsTreatment Frequency
Allergic Rhinitis
very high
very high

Treatment Frequency

Dr. Johnstone treats Allergic Rhinitis more than 97% of their peers

Dr. Johnstone treats this condition more than 97% of their peers

Acute Sinusitis
normal
normal

Treatment Frequency

Dr. Johnstone treats Acute Sinusitis more than 64% of their peers

Dr. Johnstone treats this condition more than 64% of their peers

Sinusitis
normal
normal

Treatment Frequency

Dr. Johnstone treats Sinusitis more than 54% of their peers

Dr. Johnstone treats this condition more than 54% of their peers

Food and 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 and Drug Allergies specialists.

Typically treats 56% more than similar doctors

Based on claims data for 3 conditions and procedures

TreatmentsTreatment Frequency
Anaphylactic Food Allergies
normal
normal

Treatment Frequency

Dr. Johnstone treats Anaphylactic Food Allergies more than 75% of their peers

Dr. Johnstone treats this condition more than 75% of their peers

Allergic Rhinitis Due to Food
normal
normal

Treatment Frequency

Dr. Johnstone treats Allergic Rhinitis Due to Food more than 50% of their peers

Dr. Johnstone treats this condition more than 50% of their peers

Anaphylactic Tree Nut Allergy
normal
normal

Treatment Frequency

Dr. Johnstone treats Anaphylactic Tree Nut Allergy more than 47% of their peers

Dr. Johnstone treats this condition more than 47% of their peers

View all Food and Drug Allergies treatments
Hide other practice areas

Check Dr. Johnstone's experience treating your condition or procedure

Dr. Johnstone's conditions and procedures:

  • Acute Pharyngitis
  • Acute Sinusitis
  • Allergic Conjunctivitis
  • Allergic Reaction
  • Allergic Rhinitis
  • Allergic Rhinitis Due to Food
  • Allergic Rhinitis Due to Pollen
  • Allergy Shots
  • Allergy Shots for Insect Stings
  • Allergy Skin Testing
  • Allergy Testing
  • Allergy Treatment
  • Anaphylactic Egg Allergy
  • Anaphylactic Fish Allergy
  • Anaphylactic Food Allergies
  • Anaphylactic Milk and Dairy Allergy
  • Anaphylactic Peanut Allergy
  • Anaphylactic Shell Fish Allergy
  • Anaphylactic Tree Nut Allergy
  • Anaphylaxis
  • Angioedema
  • Animal Allergies
  • Asthma
  • Atopic Dermatitis (Eczema)
  • Breath Testing
  • Breathing Disorders
  • Bronchitis
  • Chronic Sinusitis
  • Common Variable Immune Deficiency (CVID)
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Cough
  • Dermatitis
  • Dermatitis Due to Food
  • Dermatitis Due to Substances Taken Internally
  • Drug or Food Challenge
  • Eczema and Contact Dermatitis Due to Metals
  • Eosinophilic Esophagitis
  • Eye Infections
  • Food Allergy
  • Food Sensitivity Testing
  • Hives
  • Hypogammaglobulinemia
  • Immunodeficiency Syndromes
  • Insect Sting Allergies
  • Itchy Skin
  • Patch Testing
  • Pinkeye (Conjunctivitis)
  • Pollen Allergy
  • Postnasal Drip
  • Pulmonary Disease
  • Pulmonary Function Test
  • Rash
  • Respiratory Diseases
  • Sinusitis
  • Skin Infections
  • Toxic Effect of Venom

Locations

Allergy Partners Of The Upstate

Allergy Partners Of The Upstate212 Frontage Rd Clemson, SC 29631
1
Allergy Partners Of The Upstate48 Creekview Ct Greenville, SC 29615
2
Allergy Partners Of The Upstate115 Edgebrook Dr Anderson, SC 29621
3
Allergy Partners Of The Upstate62 Bear Dr Greenville, SC 29605
4

Affiliated Hospitals

Check the quality of care at hospitals where Dr. Johnstone treats patients.

Learn more

Prisma Health Greenville Memorial Hospital

Greenville, SC

69% Patient experience rating, Equal to the national average

  • Patient Safety Excellence Award™ (2018)

St. Francis Downtown

Greenville, SC

77% Patient experience rating, 8% higher than the national average

  • America's 250 Best Hospitals Award™ (2020, 2019, 2018)
  • America's 50 Best Hospitals Award™ (2020, 2019)
  • Outstanding Patient Experience Award™ (2020, 2018)
  • Patient Safety Excellence Award™ (2020, 2019)
  • America's 100 Best Hospitals Award™ (2018)