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DOUGLAS THOMAS JOHNSTON DO
NPI 1124048079
Allergy & Immunology in Greenville, SC

Active since July 20, 2006PECOS Enrolled
200 PATEWOOD DR STE A140, GREENVILLE, SC 29615(864) 454-5125(864) 241-9201 Get Directions Write a Review

NPPES record last updated: August 16, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 16, 2022, May 25, 2021 (2 updates tracked since 2021).

About Douglas Thomas Johnston Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DOUGLAS THOMAS JOHNSTON DO (NPI 1124048079) is an individual allergy & immunology provider in Greenville, South Carolina, licensed in South Carolina (967) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1124048079
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameDOUGLAS THOMAS JOHNSTONCredential: DO
Location Address200 PATEWOOD DR STE A140Greenville, SC 29615-3585
Mailing Address300 E Mcbee Ave Fl 4Greenville, SC 29601-2842 · (864) 522-8603
Phone(864) 454-5125
Fax(864) 241-9201
Sole ProprietorNo
Enumeration DateJuly 20, 2006
Last NPPES UpdateAugust 16, 20222 updates tracked since enumeration
NPPES CertifiedAugust 16, 2022
✔ NPI 1124048079 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
Licenses✔ Licensed in SC · 967✔ Licensed in NC · 2011-01906✔ Licensed in AL · DO840
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
200 PATEWOOD DR STE A140, Greenville, SC 29615
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Secondary Practice Locations 3

Location 110310 Mallard Creek Rd Ste 101ACharlotte, NC 28262-4563 · Phone (704) 341-9600
Location 22600 E 7th St Unit ACharlotte, NC 28204-4398 · Phone (704) 372-7900
Location 38045 Providence Rd, Suite 300Charlotte, NC 28277-8915 · Phone (704) 341-9600 · Fax (704) 341-9996

Other Identifiers 3

Medicaid5920097NC
MedicaidPENDINGSC
Medicaid009671SC

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of South Carolina, InStil Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Douglas Thomas Johnston Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KRISTAN STEWART BROWN R.D.
Dietitian, Registered
200 PATEWOOD DR STE A140
GREENVILLE, SC 29615
Greenville County (864) 454-5125
EDEN CRAIN RD
Dietitian, Registered
200 PATEWOOD DR STE A140
GREENVILLE, SC 29615
Greenville County (864) 454-5125
DR. LINDSAY M MOYE MD
Pediatrics (Pediatric Gastroenterology)
200 PATEWOOD DR STE A140
GREENVILLE, SC 29615
Greenville County (864) 454-5125
BENJAMIN A JONES PSYD
Psychologist
200 PATEWOOD DR STE A140
GREENVILLE, SC 29615
Greenville County (864) 454-5125

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Douglas Johnston's NPI number?

The NPI number for Douglas Johnston is 1124048079. It was assigned to this individual provider in the NPPES registry on July 20, 2006.

Where is Douglas Johnston located?

Douglas Johnston practices at 200 Patewood Dr Ste A140, Greenville, SC 29615. The listed phone number is (864) 454-5125.

What is Douglas Johnston's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Douglas Johnston enrolled in Medicare?

Yes. Douglas Johnston is registered in the Medicare PECOS enrollment system.

What insurance does Douglas Johnston accept?

Health plans from BlueCross BlueShield of South Carolina and InStil Health list Douglas Johnston as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Douglas Johnston was last updated on August 16, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.