Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tatum Siebert, M.ED
Clinical Psychologist in Boston, MA · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528389566
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Registry record
Entity type Individual (Type 1)
Name Tatum Siebert
Credential M.ED
Sex Female
Practice address 84 State St, Boston, MA, 02109
Phone (860) 788-6404
Enumeration date Jun 14, 2010
Last updated in NPPES Aug 19, 2024
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 10715 (MA) Primary
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 Tatum Siebert?
Tatum Siebert is registered in NPPES with the primary taxonomy of Clinical Psychologist. 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
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-19.