Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Calvin Van Reken MD Ltd

Geriatric Medicine (Internal Medicine) Physician in Reno, NV · enumerated 2007 · authorized official Calvin Vanreken, President.

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

National Provider Identifier

1407908536

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Registry record

Entity type Organization (Type 2)

Legal business name Calvin Van Reken MD Ltd

Practice address 55 Foothill Rd, Ste 1, Reno, NV, 89511

Phone (775) 358-1717

Enumeration date Jan 17, 2007

Last updated in NPPES May 15, 2015

Taxonomy & classification

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Calvin Vanreken

Title President

Phone (775) 358-1717

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 is Calvin Van Reken MD Ltd located?

The practice location on file with NPPES is in Reno, NV.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2015-05-15. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-15.