Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Lydia Baumrind
Psychologist in Brookline, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1861509937
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Registry record
Entity type Individual (Type 1)
Name Dr. Lydia Baumrind
Sex Female
Practice address 1415 Beacon St, #124, Brookline, MA, 02446
Phone (617) 739-9085
Enumeration date Aug 24, 2006
Last updated in NPPES Jul 9, 2007
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 003257 | Other | - | HARVARD PILGRIM |
| W03567 | Other | MA | MA LICENSE |
| 35032000 | Other | MA | INSURANCE MAGELLAN |
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
Is NPI 1861509937 active?
Yes, as of the latest NPPES snapshot, NPI 1861509937 is active (record last updated 2007-07-09).
How do I verify Lydia Baumrind's NPI record?
Cross-check NPI 1861509937 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Patricia Doherty Psychiatry Physician · Brookline, MA NPI 1215905534 Wendy Cohen Psychiatry Physician · Brookline, MA NPI 1235185802 Gregory Harris Psychiatry Physician · Brookline, MA NPI 1619923877 Carol Barnes Mental Health Counselor · Brookline, MA NPI 1548369366 Lauren Post Clinical Social Worker · Brookline, MA NPI 1013009752 Caryn Mushlin Clinical Social Worker · Brookline, MA NPI 1285721068 Belinda Kussman Clinical Social Worker · Brookline, MA NPI 1932266962 Anna Stothart Mental Health Counselor · Brookline, MA NPI 1790835098
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.