Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Holbrook Chiropractic PC

Chiropractor in Holbrook, NY · enumerated 2007 · authorized official Douglass Glassman, President.

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

National Provider Identifier

1164631875

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Registry record

Entity type Organization (Type 2)

Legal business name Holbrook Chiropractic PC

Practice address 233 Union Ave, Suite 102, Holbrook, NY, 11741

Phone (631) 981-2222

Fax (631) 981-2279

Enumeration date May 21, 2007

Last updated in NPPES Mar 21, 2008

Taxonomy & classification

111N00000X Chiropractor Chiropractic Providers · License 006064 (NY) Primary

Authorized official

Name Douglass Glassman

Title President

Phone (631) 981-2222

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-03-21. Verify at npiregistry.cms.hhs.gov.

Where is Holbrook Chiropractic PC located?

The practice location on file with NPPES is in Holbrook, NY.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-21.