Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Elaine Mil Ong, DO
Psychiatry Physician in Ventura, CA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770338246
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Registry record
Entity type Individual (Type 1)
Name Elaine Mil Ong
Credential DO
Sex Female
Practice address 147 N Brent St, Ventura, CA, 93003
Phone (805) 948-5672
Enumeration date Apr 18, 2024
Last updated in NPPES Jun 26, 2025
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
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.
Frequently asked questions
What is the NPI number for Elaine Ong?
The National Provider Identifier (NPI) for Elaine Ong is 1770338246, a Type 1 (individual) record in the CMS NPPES registry.
Where does Elaine Ong practice?
The practice location on file with NPPES is in Ventura, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Erwin B. Clahassey M.D., A Professional Corporation Anatomic Pathology & Clinical Pathology Physician · Ventura, CA NPI 1265426969 Meeae Kwon Anatomic Pathology & Clinical Pathology Physician · Ventura, CA NPI 1669467114 Dang Bui Anatomic Pathology & Clinical Pathology Physician · Ventura, CA NPI 1649265182 Christina Matts Hospice and Palliative Medicine (Emergency Medicine) Physician · Ventura, CA NPI 1063403590 Community Memorial Health System General Acute Care Hospital · Ventura, CA NPI 1215903018 Carmen Martinez Vascular & Interventional Radiology Physician · Ventura, CA NPI 1679533822 Eric Fields Emergency Medicine Physician · Ventura, CA NPI 1972557502 Bengt-Ola Bengtsson Neonatal-Perinatal Medicine Physician · Ventura, CA NPI 1689627580
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-26.