Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. David Mark Kallsen, RPH

Pharmacist in Iowa City, IA · enumerated 2019 · practices at Walmart Inc..

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

National Provider Identifier

1336795178

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Registry record

Entity type Individual (Type 1)

Name Mr. David Mark Kallsen

Credential RPH

Sex Male

Practice address 919 Highway 1 W, Iowa City, IA, 52246

Phone (319) 337-8862

Fax (319) 688-9520

Enumeration date Aug 16, 2019

Last updated in NPPES Aug 16, 2019

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 17011 (IA) Primary

RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH 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

How do I verify David Kallsen's NPI record?

Cross-check NPI 1336795178 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1336795178 active?

Yes, as of the latest NPPES snapshot, NPI 1336795178 is active (record last updated 2019-08-16).

Other providers at this practice address

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Walmart Inc. Community/Retail Pharmacy · Iowa City, IA NPI 1902823388 Stacy Bueltel Pharmacist · Iowa City, IA NPI 1497235873 Angela Ramspott Pharmacist · Iowa City, IA NPI 1962965871 Mona Alsheikh Pharmacist · Iowa City, IA NPI 1821684614 Paul Choeun Pharmacist · Iowa City, IA NPI 1063274520

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-08-16.