Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jan R Green, LCSW
Clinical Social Worker in Alton, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255437554
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Registry record
Entity type Individual (Type 1)
Name Jan R Green
Credential LCSW
Sex Female
Practice address 815 E 5th St, Alton, IL, 62002
Phone (618) 474-6244
Fax (618) 474-6242
Enumeration date Sep 15, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy.
About the LCSW 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 Jan Green?
Jan Green is registered in NPPES with the primary taxonomy of Clinical Social Worker. 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 → Mike Homan Clinical Social Worker · Alton, IL NPI 1952410060 Internal Medicine Specialists Ltd Internal Medicine Physician · Alton, IL NPI 1386734127 Randall Crammond Oral and Maxillofacial Surgery (Dentist) · Alton, IL NPI 1215063573 Crammond & Helden Ltd Oral and Maxillofacial Surgery (Dentist) · Alton, IL NPI 1538295522 Arbha Vongsvivut Neurology Physician · Alton, IL NPI 1639206154 Victor Hidalgo Family Medicine Physician · Alton, IL NPI 1235353830 Rachel Reynolds Physical Therapist · Alton, IL NPI 1164689170 Southern Illinois Healthcare Foundation, Inc. Federally Qualified Health Center (FQHC) · Alton, IL NPI 1346402062
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.