Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Nancy Willene Deackoff, MD
Psychiatry Physician in Harford, CT · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902972110
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Registry record
Entity type Individual (Type 1)
Name Nancy Willene Deackoff
Credential MD
Sex Female
Practice address 500 Vine Street, Capitol Region Mental Health Center, Harford, CT, 06112
Phone (860) 297-0905
Fax (860) 297-0914
Enumeration date Nov 28, 2006
Last updated in NPPES Jul 8, 2007
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 Nancy Deackoff?
Nancy Deackoff 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
Browse all → State of Connecticut Psychiatric Hospital · Hartford, CT NPI 1487689022 Michael Tress Psychiatry Physician · Hartford, CT NPI 1083637060 Virgil Rona Anatomic Pathology & Clinical Pathology Physician · Hartford, CT NPI 1972686707 Alice Sadow Clinical Nurse Specialist · Hartford, CT NPI 1801969217 Karen Andress Clinical Social Worker · Hartford, CT NPI 1881769743 Robin Swetz Clinical Social Worker · Hartford, CT NPI 1346316544 Eric Stamm Clinical Social Worker · Hartford, CT NPI 1215003421 Katherine Winiarski Clinical Social Worker · Hartford, CT NPI 1124194337
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.