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Los Angeles Hematology-Oncology Medical Group

Hematology & Oncology Physician in Lakewood, CA · enumerated 2022 · authorized official Marla Wsiaki, Project Manager.

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

National Provider Identifier

1871210708

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Registry record

Entity type Organization (Type 2)
Legal business name Los Angeles Hematology-Oncology Medical Group
Practice address 3650 South St Ste 212, Lakewood, CA, 90712
Phone (562) 272-7630
Fax (562) 272-7631
Enumeration date Oct 21, 2022
Last updated in NPPES Oct 21, 2022

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Marla Wsiaki
Title Project Manager
Phone (323) 254-0046

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 Los Angeles Hematology-Oncology Medical Group?
The NPI for Los Angeles Hematology-Oncology Medical Group is 1871210708, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Los Angeles Hematology-Oncology Medical Group?
NPPES lists Marla Wsiaki (Project Manager) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-21.