Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mathew James Johnstone, DPM

Podiatrist in Des Moines, IA · enumerated 2016.

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

National Provider Identifier

1518327089

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Registry record

Entity type Individual (Type 1)

Name Dr. Mathew James Johnstone

Credential DPM

Sex Male

Practice address 3200 Grand Ave, Des Moines, IA, 50312

Phone (152) 711-1731

Fax (515) 271-1714

Enumeration date Feb 26, 2016

Last updated in NPPES Jun 9, 2022

Taxonomy & licenses

213EP0504X Public Medicine Podiatrist Podiatric Medicine & Surgery Service Providers · License 415300059 (IA) Secondary

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License 108136 (IA) Primary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM credential

Other identifiers

Identifier	Type	State	Issuer
1518327089	Medicaid	IA	-

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Mathew Johnstone?

Mathew Johnstone is registered in NPPES with the primary taxonomy of Podiatrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-09.