Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Peter Jon Anderson, M.D.

Internal Medicine Physician in Sioux City, IA · enumerated 2006.

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

National Provider Identifier

1114967858

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Registry record

Entity type Individual (Type 1)

Name Dr. Peter Jon Anderson

Credential M.D.

Sex Male

Practice address 801 5th St, Sioux City, IA, 51101

Phone (712) 279-2010

Fax (712) 279-2034

Enumeration date Jun 8, 2006

Last updated in NPPES Jun 12, 2019

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 01080422A (IN) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 39762 (KY) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD-41975 (IA) 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
64108459	Medicaid	KY	-

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 is the NPI number for Peter Anderson?

The National Provider Identifier (NPI) for Peter Anderson is 1114967858, a Type 1 (individual) record in the CMS NPPES registry.

Where does Peter Anderson practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-12.