Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Doreen Jeffers Cornacchia, OTR/L
Specialist in Groton, MA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1134396203
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Registry record
Entity type Individual (Type 1)
Name Ms. Doreen Jeffers Cornacchia
Credential OTR/L
Sex Female
Practice address 497 Main St., Suite E, Groton, MA, 01450
Phone (978) 448-4001
Enumeration date May 8, 2008
Last updated in NPPES Dec 17, 2009
Taxonomy & licenses
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
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.
What specialty is Doreen Cornacchia?
Doreen Cornacchia is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Vandana Sahay Internal Medicine Physician · Groton, MA NPI 1881683068 Marisa King Occupational Therapist · Groton, MA NPI 1013186204 Groton Integrated Therapies Occupational Therapist · Groton, MA NPI 1750557286 Lisa Hamiltongoscombe Specialist · Groton, MA NPI 1568638963 Catherine Schultz Pediatric Occupational Therapist · Groton, MA NPI 1689815003 Theresa Pitino Pediatric Physical Therapist · Groton, MA NPI 1689972622 April Colson Occupational Therapist · Groton, MA NPI 1861828980 Allyson Melanson Occupational Therapist · Groton, MA NPI 1669897179
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-17.