Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Walker Darkow, PHARMD

Pharmacist in Owatonna, MN · enumerated 2015.

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

National Provider Identifier

1639555774

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Registry record

Entity type Individual (Type 1)

Name Dr. Walker Darkow

Credential PHARMD

Sex Male

Practice address 610 Florence Ave, Ste 123, Owatonna, MN, 55060

Phone (507) 413-7752

Enumeration date Jul 30, 2015

Last updated in NPPES Jul 30, 2015

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 121315 (MN) Primary

183500000X Pharmacist Pharmacy Service Providers · License 6090 (SD) Secondary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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

What is the NPI number for Walker Darkow?

The National Provider Identifier (NPI) for Walker Darkow is 1639555774, a Type 1 (individual) record in the CMS NPPES registry.

Where does Walker Darkow practice?

The practice location on file with NPPES is in Owatonna, MN. 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 2015-07-30.