Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. David Brinton Doolittle, PSYD
Psychologist in Brookline, MA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1982687380
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Registry record
Entity type Individual (Type 1)
Name Dr. David Brinton Doolittle
Credential PSYD
Sex Male
Practice address 1330 Beacon St, Ste 256, Brookline, MA, 02446
Phone (617) 734-7348
Enumeration date Nov 21, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD 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 David Doolittle?
David Doolittle is registered in NPPES with the primary taxonomy of 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 2007-07-08.