Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stuart Krein, M.D.

Psychiatry Physician in Maryville, MO · enumerated 2008 · practices at Mosaic Medical Center - Maryville.

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

National Provider Identifier

1619132560

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Registry record

Entity type Individual (Type 1)

Name Dr. Stuart Krein

Credential M.D.

Sex Male

Practice address 114 E South Hills Dr, Maryville, MO, 64468

Phone (660) 562-2525

Enumeration date Jul 21, 2008

Last updated in NPPES May 6, 2015

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 0433894 (KS) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 0433894 (KS) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 2013009355 (MO) Primary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License R70526 (AZ) Secondary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Stuart Krein?

Stuart Krein 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.

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 2015-05-06.