Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthew Joseph Hyser, MD

Surgical Critical Care Physician in Evanston, IL · enumerated 2006.

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

National Provider Identifier

1336155092

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew Joseph Hyser

Credential MD

Sex Male

Practice address 800 Austin St, East Tower, Suite 563, Evanston, IL, 60202

Phone (847) 869-0522

Fax (847) 869-0652

Enumeration date Aug 1, 2006

Last updated in NPPES May 19, 2025

Taxonomy & licenses

174400000X Specialist Other Service Providers Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 036073532 (IL) Secondary

2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License 036073532 (IL) 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
036073532	Medicaid	IL	-

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 → Validate an NPI →

Frequently asked questions

What specialty is Matthew Hyser?

Matthew Hyser is registered in NPPES with the primary taxonomy of Surgical Critical Care Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-19.