Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jon A Peacock, M.D.

Cardiovascular Disease Physician in Sioux City, IA · enumerated 2006.

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

National Provider Identifier

1275507071

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Registry record

Entity type Individual (Type 1)

Name Jon A Peacock

Credential M.D.

Sex Male

Practice address 5885 Sunnybrook Dr, Suite L-200, Sioux City, IA, 51106

Phone (712) 239-4702

Fax (712) 224-5898

Enumeration date Feb 16, 2006

Last updated in NPPES Oct 15, 2015

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MD-31117 (IA) Primary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 20074 (NE) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 4330 (SD) Secondary

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
0135103	Medicaid	IA	-

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

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.

What specialty is Jon Peacock?

Jon Peacock is registered in NPPES with the primary taxonomy of Cardiovascular Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-15.