Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ira S Kastenberg, MD

Family Medicine Physician in Poynette, WI · enumerated 2006 · practices at St. Marys Dean Ventures Inc..

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

National Provider Identifier

1295785483

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Registry record

Entity type Individual (Type 1)

Name Ira S Kastenberg

Credential MD

Sex Male

Practice address 237 W Seward St, Poynette, WI, 53955

Phone (608) 635-4343

Fax (608) 635-7094

Enumeration date May 11, 2006

Last updated in NPPES May 6, 2014

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 20342-020 (WI) 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
202	Other	WI	DEAN HEALTH INSURANCE
1000578	Other	WI	PHYSICIANS PLUS
30295300	Medicaid	WI	-

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 Ira Kastenberg practice?

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

What is the NPI number for Ira Kastenberg?

The National Provider Identifier (NPI) for Ira Kastenberg is 1295785483, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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St. Marys Dean Ventures Inc. Durable Medical Equipment & Medical Supplies · Poynette, WI NPI 1710921838

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-06.