Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Gregory A Long, PH.D.
Psychologist in Dekalb, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225106438
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Registry record
Entity type Individual (Type 1)
Name Dr. Gregory A Long
Credential PH.D.
Sex Male
Practice address 1 Lucinda Ave., Niu Speech-Language and Hearing Clinic, Dekalb, IL, 60115
Phone (815) 753-6508
Enumeration date Dec 4, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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.
Frequently asked questions
What is the NPI number for Gregory Long?
The National Provider Identifier (NPI) for Gregory Long is 1225106438, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregory Long practice?
The practice location on file with NPPES is in Dekalb, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Anne Davidson Speech-Language Pathologist · Dekalb, IL NPI 1841380987 Jennifer Heinisch Speech-Language Pathologist · Dekalb, IL NPI 1689764177 Diane Schecklong Audiologist · Dekalb, IL NPI 1164512950 Sherrill Morris Speech-Language Pathologist · Dekalb, IL NPI 1609955590 Pamela Hadley Speech-Language Pathologist · Dekalb, IL NPI 1982778510 Sharon Hollister Speech-Language Pathologist · Dekalb, IL NPI 1720153612
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.