Dr. Michael S Johnston, DMD, MS

Dr. Michael S Johnston is a Orthodontics and Dentofacial Orthopedics Dentistry provider (Dentist) practicing in Greer, SC, registered in the NPPES registry with NPI 1578776472 since 2007. The credential DMD stands for Doctor of Medicine in Dentistry.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1578776472
Entity type	Individual (Type 1)
Name	Dr. Michael S Johnston
Credential	DMD, MS
Sex	Male
Practice address	Greer, SC, 29650
Phone	8648772929
Enumeration date	2007-05-07
Last updated in NPPES	2013-03-01

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223X0400X	Orthodontics and Dentofacial Orthopedics Dentistry	Primary	3325 & SPEC 501	SC
1223X0400X	Orthodontics and Dentofacial Orthopedics Dentistry	Secondary	7447	NC

DMD — Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier	Type	State	Issuer
600881332	Other	NC	NC DEPT. OF REVENUE WITHHOLDING NUMBER

Copy-ready billing details

Provider: Michael Johnston, DMD, MS
NPI: 1578776472
Taxonomy: 1223X0400X (Orthodontics and Dentofacial Orthopedics Dentistry)
Address: Greer, SC, 29650

Verify this record

Cross-check NPI 1578776472 against the authoritative CMS record: view Dr. Michael S Johnston on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

How do I verify Michael Johnston's NPI record?

Cross-check NPI 1578776472 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1578776472 active?

Yes — as of the latest NPPES snapshot, NPI 1578776472 is active (record last updated 2013-03-01).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2013-03-01.