Douglas Thomas Johnston, DO - Medicare in Greenville, SC

Douglas Thomas Johnston, DO is a medicare enrolled "Allergy & Immunology" physician in Greenville, South Carolina. His current practice location is 200 Patewood Dr Ste A140, Greenville, South Carolina. You can reach out to his office (for appointments etc.) via phone at (864) 454-5125.

Douglas Thomas Johnston is licensed to practice in South Carolina (license number 967) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1124048079.

Contact Information

Douglas Thomas Johnston, DO
200 Patewood Dr Ste A140,
Greenville, SC 29615-3585
(864) 454-5125
(864) 241-9201

Map and Direction




Physician's Profile

Full NameDouglas Thomas Johnston
GenderMale
Speciality
Experience Years
Location200 Patewood Dr Ste A140, Greenville, South Carolina
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Douglas Thomas Johnston attended and graduated from in
  NPI Data:
  • NPI Number: 1124048079
  • Provider Enumeration Date: 07/20/2006
  • Last Update Date: 08/16/2022
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Douglas Thomas Johnston such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1124048079NPI-NPPES
5920097MedicaidNC
PENDINGMedicaidSC
009671MedicaidSC

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207K00000XAllergy & Immunology 2011-01906 (North Carolina)Secondary
207K00000XAllergy & Immunology 967 (South Carolina)Primary
207K00000XAllergy & Immunology DO840 (Alabama)Secondary

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Douglas Thomas Johnston is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Douglas Thomas Johnston, DO
300 E Mcbee Ave Fl 4,
Greenville, SC 29601-2842

Ph: (864) 522-8603
Douglas Thomas Johnston, DO
200 Patewood Dr Ste A140,
Greenville, SC 29615-3585

Ph: (864) 454-5125

Reviews and Comments


Allergy & Immunology Doctors in Greenville, SC

Reid F Johnstone, MD
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Medicare: Accepting Medicare Assignments
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Phone: 864-458-7431    Fax: 864-458-7463
Dr. Fred Leffert, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 130 Mallard St, Greenville, SC 29601
Phone: 864-233-1534    Fax: 864-751-6020
Thomas L Tiller Jr., M. D.
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Practice Location: 48 Creekview Ct, Greenville, SC 29615
Phone: 864-458-7431    Fax: 864-458-7463
Mrs. Shanna Elizabeth Cowan, MS PAC
Allergy & Immunology
Medicare: Not Enrolled in Medicare
Practice Location: 1202 E Butler Rd, Greenville, SC 29607
Phone: 864-627-3800    Fax: 864-672-2653
Andrea Brooks Lantz, MD
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 48 Creekview Ct, Greenville, SC 29615
Phone: 864-458-7431    Fax: 864-458-7463
Shiven S Patel, M.D.
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 10 Halton Green Way, Greenville, SC 29607
Phone: 864-675-5000    Fax: 864-675-5005

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.