Patricia HsiaMD
Patricia Hsia, MD is an Internal Medicine provider in Fontana, CA, as of July 2026.
- NPI1174694087
- Registered2006
- Class of1985
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Patricia Hsia at a glance
- Provider
- Patricia Hsia
- Credential
- MD
- Specialty
- Internal Medicine
- Procedures
- Internal Medicine CPT codes
- Location
- Fontana, CA
- Medical school
- State University of New York at Buffalo School of Medicine
- Graduated
- 1985
- NPI registered
- 2006
- NPI
- 1174694087
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Patricia Hsia practice?
Patricia Hsia, MD is based in Fontana, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Patricia Hsia's NPI number?
Patricia Hsia's National Provider Identifier (NPI) is 1174694087, registered in 2006. Specialty on record: Internal Medicine; credential MD.
Where did Patricia Hsia go to medical school?
Patricia Hsia, MD attended State University of New York at Buffalo School of Medicine, graduating in 1985.
How many Internal Medicine providers in California work at ambulatory surgery centers?
209 Internal Medicine surgeons and proceduralists in California are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Patricia Hsia among them. The California Internal Medicine directory lists each one by city with credential, NPI, and center affiliations.
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