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Dr. Joel Vincent Merkwan, PH.D.

Clinical Psychologist in Yankton, SD · enumerated 2007 · practices at Meridian Mental Health, LLC.

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

National Provider Identifier

1699810879

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Registry record

Entity type Individual (Type 1)
Name Dr. Joel Vincent Merkwan
Credential PH.D.
Sex Male
Practice address 327 Broadway Ave Ste 15, Yankton, SD, 57078
Phone (605) 661-6128
Enumeration date Feb 21, 2007
Last updated in NPPES Jun 29, 2010

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 393 (ND) Primary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 490 (SD) Secondary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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

Where does Joel Merkwan practice?
The practice location on file with NPPES is in Yankton, SD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joel Merkwan?
The National Provider Identifier (NPI) for Joel Merkwan is 1699810879, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-29.