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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Darrell Switzer, PHARM D.

Pharmacist in Elk City, OK · enumerated 2011 · practices at Walgreen Co.

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

National Provider Identifier

1083999304

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Registry record

Entity type Individual (Type 1)
Name Dr. Darrell Switzer
Credential PHARM D.
Sex Male
Practice address 115 W 3rd St, Elk City, OK, 73644
Phone (580) 225-4418
Fax (580) 225-4415
Enumeration date Oct 18, 2011
Last updated in NPPES Oct 18, 2011

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 13905 (OK) Primary
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.

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Frequently asked questions

How do I verify Darrell Switzer's NPI record?
Cross-check NPI 1083999304 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1083999304 active?
Yes, as of the latest NPPES snapshot, NPI 1083999304 is active (record last updated 2011-10-18).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-18.