Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William Simone-Skidmore, PHD
Clinical Psychologist in Boston, MA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1508022518
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Registry record
Entity type Individual (Type 1)
Name Dr. William Simone-Skidmore
Credential PHD
Sex Male
Practice address 150 S Huntington Ave # 116b, Boston, MA, 02130
Phone (857) 364-4920
Enumeration date Jul 30, 2008
Last updated in NPPES Apr 11, 2011
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PS01125 (RI) Primary
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 specialty is William Simone-Skidmore?
William Simone-Skidmore 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
Browse all → Blair Wisco Psychologist · Boston, MA NPI 1548557408 Diana Fitek Clinical Psychologist · Boston, MA NPI 1437408473 Laurel Brown Clinical Psychologist · Jamaica Plain, MA NPI 1851641245 Gina Poole Laposta Psychologist · Boston, MA NPI 1790280048 Arielle Horenstein Clinical Psychologist · Boston, MA NPI 1659928240 Rachel Shor Student in an Organized Health Care Education/Training Program · Jamaica Plain, MA NPI 1730756347 Allyson Mchugh Clinical Social Worker · Boston, MA NPI 1003507641
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-11.