Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Santosh Shah, MD

Q: What is the NPI number for Santosh Shah?

The National Provider Identifier (NPI) for Santosh Shah is 1841440021, a Type 1 (individual) record in the CMS NPPES registry.

Diagnostic Radiology Physician in Mason City, IA · enumerated 2008.

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

National Provider Identifier

1841440021

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Registry record

Entity type Individual (Type 1)

Name Dr. Santosh Shah

Credential MD

Sex Male

Practice address Mason City, IA, 50401

Phone (641) 428-7000

Enumeration date Sep 24, 2008

Last updated in NPPES Jan 15, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MD-44162 (IA) Primary

2085D0003X Diagnostic Neuroimaging (Radiology) Physician Allopathic & Osteopathic Physicians · License 341652 (NY) 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

Where does Santosh Shah practice?

The practice location on file with NPPES is in Mason City, IA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Santosh Shah?

The National Provider Identifier (NPI) for Santosh Shah is 1841440021, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-15.