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Siqi Ma, DO

Family Medicine Physician in Clearlake, CA · enumerated 2020.

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

National Provider Identifier

1659991933

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Registry record

Entity type Individual (Type 1)
Name Siqi Ma
Credential DO
Sex Female
Practice address 15230 Lakeshore Dr, Clearlake, CA, 95422
Phone (707) 995-4500
Enumeration date Apr 16, 2020
Last updated in NPPES Oct 20, 2023

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 7451 (OK) Secondary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 20A21190 (CA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

Where does Siqi Ma practice?
The practice location on file with NPPES is in Clearlake, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Siqi Ma?
The National Provider Identifier (NPI) for Siqi Ma is 1659991933, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-20.