Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Kelly Jean Frederick-Castro, LMSW
Social Worker in Chelsea, MI · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1871630681
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Registry record
Entity type Individual (Type 1)
Name Ms. Kelly Jean Frederick-Castro
Credential LMSW
Sex Female
Practice address 350 North Main Street, Suite 150, Chelsea, MI, 48118
Phone (734) 593-5251
Fax (734) 593-5255
Enumeration date Jan 31, 2007
Last updated in NPPES Jul 26, 2024
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
Where does Kelly Frederick-Castro practice?
The practice location on file with NPPES is in Chelsea, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Kelly Frederick-Castro?
The National Provider Identifier (NPI) for Kelly Frederick-Castro is 1871630681, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Virginia Oemke Social Worker · Chelsea, MI NPI 1265499974 Julie Chappel Social Worker · Chelsea, MI NPI 1831156405 Traci Wilson Psychologist · Chelsea, MI NPI 1750304291 Frank Pavlovcic Psychiatry Physician · Chelsea, MI NPI 1629089230 Stuart Chalin Social Worker · Chelsea, MI NPI 1285778126 Mary Lewis Social Worker · Chelsea, MI NPI 1306019732 Barbra Mazie Social Worker · Chelsea, MI NPI 1154595627 Amanda Connon Psychologist · Chelsea, MI NPI 1144505744
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-26.