Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Randall R Dwenger, MD
Psychiatry Physician in Canaan, CT · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649291980
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Registry record
Entity type Individual (Type 1)
Name Randall R Dwenger
Credential MD
Sex Male
Practice address 187 S Canaan Rd, Canaan, CT, 06018
Phone (860) 824-1397
Fax (888) 690-2727
Enumeration date Jul 22, 2006
Last updated in NPPES Jun 4, 2021
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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.
Frequently asked questions
What specialty is Randall Dwenger?
Randall Dwenger is registered in NPPES with the primary taxonomy of Psychiatry Physician. 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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-04.