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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

John R Sink, PHD

Clinical Psychologist in Cheyenne, WY · enumerated 2006 · practices at Community Action of Laramie County, Inc.

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

National Provider Identifier

1144399056

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Registry record

Entity type Individual (Type 1)
Name John R Sink
Credential PHD
Sex Male
Practice address Cheyenne, WY, 82001
Phone (307) 287-7787
Fax (307) 256-0203
Enumeration date Nov 7, 2006
Last updated in NPPES Aug 11, 2015

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 361 (WY) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier Type State Issuer
313867 Other WY BLUE CROSS & BLUE SHIELD
119968400 Medicaid WY -

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

What specialty is John Sink?
John Sink is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-08-11.