Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Blake Grider

Behavior Analyst in Watertown, MA · enumerated 2010.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649501628

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Registry record

Entity type Individual (Type 1)

Name Blake Grider

Sex Male

Practice address 51 Water St, Suite 200, Watertown, MA, 02472

Phone (617) 923-7575

Enumeration date Jan 15, 2010

Last updated in NPPES Aug 28, 2015

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers 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.

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Frequently asked questions

How do I verify Blake Grider's NPI record?

Cross-check NPI 1649501628 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649501628 active?

Yes, as of the latest NPPES snapshot, NPI 1649501628 is active (record last updated 2015-08-28).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-08-28.