Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Liwanag Asuncion, MD

Individual provider Internal Medicine Physician · NPI 1437122082

Liwanag Asuncion, MD is an Internal Medicine Physician in Ontario, California. Licensed in California and Ohio. Registered with an NPI since 2006.

Licensed in
CA, OH
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

606 E Bermuda Dunes St
Ontario, CA 91761-6717
Phone: (440) 225-7095
Fax: (909) 295-9100
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 35034771 (OH)
Internal Medicine Physician Taxonomy 207R00000X · Licence C158496 (CA)

Record details

NPI number1437122082
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 13, 2006
Last updated in NPPESJune 3, 2020
Certification dateJune 3, 2020
Mailing address606 E Bermuda Dunes St, Ontario, CA 91761-6717

Other providers in Ontario