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Mark W Johnson, MD

Family Medicine Physician in Powell, TN · enumerated 2005 · practices at Summit Medical Group, Pllc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1679571715

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Registry record

Entity type Individual (Type 1)
Name Mark W Johnson
Credential MD
Sex Male
Practice address 2125 W Emory Rd, Powell, TN, 37849
Phone (865) 938-7517
Fax (865) 938-1067
Enumeration date Jul 12, 2005
Last updated in NPPES Apr 27, 2020

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 029781 (TN) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
P00351984 Other TN RR MEDICARE PIN
3819183 Medicaid TN -

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.

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Frequently asked questions

Is NPI 1679571715 active?
Yes, as of the latest NPPES snapshot, NPI 1679571715 is active (record last updated 2020-04-27).
How do I verify Mark Johnson's NPI record?
Cross-check NPI 1679571715 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-27.