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Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr Henry D Slosser Inc

Anatomic Pathology & Clinical Pathology Physician in Pasadena, CA · enumerated 2010 · authorized official Henry Slosser, President.

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

National Provider Identifier

1154622264

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Registry record

Entity type Organization (Type 2)
Legal business name Dr Henry D Slosser Inc
Practice address 100 W California Blvd, Pasadena, CA, 91105
Phone (626) 397-8616
Fax (626) 397-2156
Enumeration date Nov 4, 2010
Last updated in NPPES Nov 4, 2010

Taxonomy & classification

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License WG36885E (CA) Primary

Authorized official

Name Henry Slosser
Title President
Phone (626) 397-8616

Other identifiers

Identifier Type State Issuer
1881622470 Other CA NPI TYPE I

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

What is the NPI number for Dr Henry D Slosser Inc?
The NPI for Dr Henry D Slosser Inc is 1154622264, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Dr Henry D Slosser Inc?
NPPES lists Henry Slosser (President) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-04.