Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ragnar S Peterson, M.D.

Surgery Physician in Wichita, KS · enumerated 2006.

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

National Provider Identifier

1598706525

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Registry record

Entity type Individual (Type 1)

Name Dr. Ragnar S Peterson

Credential M.D.

Sex Male

Practice address 1947 N Founders Cir, Wichita, KS, 67206

Phone (316) 613-4707

Fax (316) 613-4608

Enumeration date Jun 9, 2006

Last updated in NPPES Mar 27, 2026

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 04-34133 (KS) Primary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 36192 (IA) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 61452-20 (WI) 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.

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Frequently asked questions

Where does Ragnar Peterson practice?

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

What is the NPI number for Ragnar Peterson?

The National Provider Identifier (NPI) for Ragnar Peterson is 1598706525, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-27.