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Dr. Reid Johnstone, MD

Dr. Reid Johnstone, MD

Age 52 Allergy & Immunology M
(8) 8 reviews

Telehealth available


Dr. Reid Johnstone, MD is an Allergy & Immunology Specialist in Clemson, SC. Dr. Johnstone studied at College of Charleston. They currently practice at Allergy Partners Of The Upstate and are affiliated with Prisma Health Greenville Memorial Hospital and St. Francis Downtown. Dr. Johnstone accepts multiple insurance plans.


  • McG Health Inc, Fellowship Hospital — 2002
  • Greenville Memorial Hospital, Internship Hospital — 1998
  • College of Charleston, Undergraduate School — 1997

Insurance Accepted

  • Aetna
  • Ambetter
  • Anthem
  • Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • First Health
  • Humana
  • Medicaid
  • Medicare
  • MultiPlan
  • Tricare
  • UnitedHealthCare

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Sep 27, 2022
Dr Reid Johnstone is an amazing kind and caring physician,very knowledgeable and takes time to explain what is going on with my treatment Has been my Doc for years and I have always received the best care Staff is always courteous and efficient
Carolyn Graham — Sep 27, 2022
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Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Reid Johnstone, MD. To arrange an appointment, call the number on Dr. Johnstone's profile.

Dr. Johnstone frequently treats the following conditions: Hives, Pollen Allergy and Animal Allergies. See more on Sharecare.

Dr. Reid Johnstone, MD is affiliated with Prisma Health Greenville Memorial Hospital and St. Francis Downtown.

Hospital Affiliations

  • Prisma Health Greenville Memorial Hospital
  • St. Francis Downtown


  1. Allergy Partners Of The Upstate

    1. 1
      Allergy Partners Of The Upstate
      212 Frontage Rd, Clemson, SC 29631 (864) 654-0066
    2. 2
      Allergy Partners Of The Upstate
      48 Creekview Ct, Greenville, SC 29615 (864) 458-7431
    3. 3
      Allergy Partners Of The Upstate
      62 Bear Dr, Greenville, SC 29605 (864) 220-3377
  1. Allergy Partners Of The Upstate

    1. 4
      Allergy Partners Of The Upstate
      115 Edgebrook Dr, Anderson, SC 29621 (864) 458-7431
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(864) 654-0066