Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthew Michael Preston, M.D.

Psychiatry Physician in Peoria, IL · enumerated 2007.

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

National Provider Identifier

1356549323

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew Michael Preston

Credential M.D.

Sex Male

Practice address 900 Main St, Suite 580, Peoria, IL, 61602

Phone (309) 637-4266

Fax (309) 637-9838

Enumeration date Jul 11, 2007

Last updated in NPPES Aug 4, 2011

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 35.097131 (OH) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 36.128542 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Matthew Preston?

Matthew Preston is registered in NPPES with the primary taxonomy of Psychiatry Physician. 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 2011-08-04.