Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. William Hung

Individual provider Internal Medicine Physician · NPI 1972615771

Dr. William Hung practises Internal Medicine in El Monte, California. Qualified in 1996, 30 years ago. Practices with County of Los Angeles, a 390-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
30
Licensed in
CA
In the registry since
2006
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Practice location Address checks out

10953 Ramona Blvd
El Monte, CA 91731-2629
Phone: (626) 579-8463
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A79596 (CA)

Record details

NPI number1972615771
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedAugust 31, 2006
Last updated in NPPESAugust 7, 2025
Certification dateAugust 7, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice County Of Los Angeles — 390 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients132
Services billed 711 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at County of Los Angeles

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 390 clinicians in the practice; 12 are shown here.

Other providers in El Monte