Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hossein Shayan, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Upland, CA · enumerated 2010.

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

National Provider Identifier

1518270271

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Registry record

Entity type Individual (Type 1)

Name Hossein Shayan

Credential MD

Sex Male

Practice address 901 San Bernardino Rd, Ste 102, Upland, CA, 91786

Phone (909) 579-6721

Fax (909) 579-6737

Enumeration date Jul 22, 2010

Last updated in NPPES Mar 21, 2017

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License A113605 (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1518270271 active?

Yes, as of the latest NPPES snapshot, NPI 1518270271 is active (record last updated 2017-03-21).

How do I verify Hossein Shayan's NPI record?

Cross-check NPI 1518270271 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 2017-03-21.