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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Ellen Akemi Machikawa, M.D.

Psychiatry Physician in Los Angeles, CA · enumerated 2007 · practices at Hollenbeck Palms.

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

National Provider Identifier

1902007552

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Registry record

Entity type Individual (Type 1)
Name Dr. Ellen Akemi Machikawa
Credential M.D.
Sex Female
Practice address Los Angeles, CA, 90033
Phone (323) 268-3655
Fax (323) 268-8610
Enumeration date May 30, 2007
Last updated in NPPES Jan 28, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License A60726 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

What is the NPI number for Ellen Machikawa?
The National Provider Identifier (NPI) for Ellen Machikawa is 1902007552, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ellen Machikawa practice?
The practice location on file with NPPES is in Los Angeles, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-28.