Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Attum Doctors

Orthopaedic Surgery Physician in Los Osos, CA · enumerated 2023 · authorized official Basem Attum, Ceo/Owner.

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

National Provider Identifier

1700572161

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Registry record

Entity type Organization (Type 2)

Legal business name Attum Doctors

Practice address 2320 Fresno St, Los Osos, CA, 93402

Phone (502) 468-7512

Enumeration date Apr 17, 2023

Last updated in NPPES Apr 17, 2023

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Basem Attum

Title Ceo/Owner

Phone (502) 468-7512

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.

Read the full guide → Validate an NPI →

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 2023-04-17. Verify at npiregistry.cms.hhs.gov.

Where is Attum Doctors located?

The practice location on file with NPPES is in Los Osos, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-17.