William Hung

  • El Monte, CA
  • Internist
NPI1972615771PAC ID1951346352
Medicare services, 2024
615
Medicare patients, 2024
132
Part D claims, 2024
1,897
Hospital affiliations
1
Industry payments
$499
Practice address
10953 Ramona Blvd., El Monte, CA 91731
Practice phone
Call (626) 434-2830
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

El Monte Comprehensive Health Center

Mammography / Breast Imaging Center · El Monte, California

See all 5 affiliations

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William Hung is an internist in El Monte, California

William Hung practices at El Monte Comprehensive Health Center in El Monte, California.

William Hung's NPI, 1972615771, was assigned on August 31, 2006. William Hung holds California license A79596.

NPI and contact details
Medicare PAC ID
1951346352
NPI enumeration date
August 31, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(626) 434-2830
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
56
Medical school graduation
1996

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

William Hung practices at El Monte Comprehensive Health Center in El Monte, California

William Hung's primary practice is El Monte Comprehensive Health Center, at 10953 Ramona Blvd., El Monte, CA 91731. The practice phone is (626) 434-2830.

  • El Monte Comprehensive Health Center
    10953 Ramona Blvd., El Monte, CA 91731Phone(626) 434-2830

Source: Dmand AI Affiliation Data

William Hung is affiliated with 4 sites of care and 1 medical group

William Hung's primary practice is El Monte Comprehensive Health Center in El Monte, California. William Hung is also affiliated with Los Angeles General Medical Center. The medical group on file is Harbor-UCLA Medical Center. Dmand AI also links William Hung to 1 more physician office and 1 group practice or clinic, each named with a free account. William Hung's employer is on file too: a breast imaging center.

See all 5 affiliations for William Hung

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at William Hung's practice

Dmand AI tracks the electronic health record (EHR) system at each site where William Hung practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
El Monte Comprehensive Health CenterAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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William Hung is one of 16,751 internists in California

Internal medicine is William Hung's primary specialty in the NPI Registry, under taxonomy code 207R00000X. William Hung is licensed in California.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A79596 · taxonomy 207R00000X

Internists near William Hung

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

William Hung billed Medicare for 615 services in 2024

CMS data shows 615 Medicare services from William Hung across 15 procedure codes in 2024, for 132 Medicare patients. Medicare paid $17,185 for them. Every service was in an office.

Medicare services, 2024615
Medicare patients132
Paid by Medicare$17,185
Procedure codes15

William Hung's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2062024: 2123%
Lab and pathology
2023: 172024: 186994%
Surgery
2023: 1822024: 1744%
Imaging
2023: 252024: 4372%

William Hung compared with the California median for internists, 2024

  • William Hung
  • California median
Medicare services
615vs 36170% above
Medicare patients
132vs 15113% below
Part D claims
1,588vs 4213.8 times

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

William Hung's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by William Hung

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Medicare shows one payer. Book a meeting to get commercial claims data for William Hung and other internists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

William Hung treated 132 Medicare patients in 2024, average age 69

CMS counts 132 Medicare patients who saw William Hung in 2024. The largest group is 65 to 74, with 98 patients. 75% of them have high cholesterol, and 70% have high blood pressure. Their average risk score is 1.22, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts William Hung's median patient age at 61, with 51% women.

Medicare patients, 2024132
Average age69
Average risk score1.22

William Hung's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

William Hung's Medicare patients by sex, 2024

  • Women8061%
  • Men5239%

Chronic conditions among William Hung's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure70%
  3. Diabetes51%
  4. Arthritis20%
  5. Cancer14%
  6. Chronic kidney disease13%
  7. Ischemic heart disease11%
  8. Mood disorders11%

Share of Medicare patients with each condition. A patient can have several.

William Hung's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 61

Patient panel by sex, all payers

  • Women51%
  • Men49%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

William Hung wrote 1,897 Medicare Part D claims in 2024

In 2024, William Hung wrote 1,897 Medicare Part D claims for 135 patients. 85% of them were for generic drugs. CMS names the drug for 1,588 of them, across 38 drugs with 11 or more claims each, at $77,065 in total drug cost. In 2023, CMS named 1,687 claims across 45 drugs.

Part D claims, 20241,897
Drugs named by CMS38
Total drug cost$77,065
Part D patients135

William Hung's Part D claims by kind of drug, 2024

  • Generic1,612 claims85%
  • Brand-name244 claims13%
  • Other41 claims2%

William Hung's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,6872024: 1,5886%

Drugs named by CMS: 38 in 2024, 45 in 2023.

See all prescribing by William Hung

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How William Hung takes part in Medicare

William Hung accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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William Hung received $499 in industry payments from 2016 to 2022

CMS Open Payments shows 17 general payments to William Hung from 6 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $233.

General payments to William Hung by program year, 2016 to 2022

Companies that paid William Hung the most, 2016 to 2022

Share is of all general payments to this clinician.

See all payments to William Hung

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for William Hung's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about William Hung

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is William Hung's NPI number?

William Hung's NPI number is 1972615771. It was assigned on August 31, 2006, and it is active in the NPI Registry.

What does William Hung specialize in?

William Hung is an internist in El Monte, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does William Hung practice?

William Hung practices at 10953 Ramona Blvd., El Monte, CA 91731. William Hung's primary practice is El Monte Comprehensive Health Center in El Monte, California. Dmand AI also links William Hung to 1 physician office and 1 group practice or clinic.

What is William Hung's office phone number?

The practice phone on file for William Hung is (626) 434-2830.

What is William Hung's medical license number?

William Hung holds California license A79596.

Which hospitals is William Hung affiliated with?

William Hung is affiliated with Los Angeles General Medical Center.

What medical group is William Hung part of?

William Hung is linked to Harbor-UCLA Medical Center.

Does William Hung accept Medicare?

Yes. CMS data shows William Hung billed Medicare for 615 services in 2024, and William Hung accepts Medicare assignment.

How many Medicare patients does William Hung see?

CMS counts 132 Medicare patients who saw William Hung in 2024, with an average age of 69.

What services does William Hung bill to Medicare?

In 2024, William Hung's most billed Medicare services were office visit, established patient (99213), surgery: heart and blood vessels (36415) and lab and pathology test (80048).

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What drugs does William Hung prescribe most?

In 2024 Medicare Part D data, William Hung's most prescribed drugs by claims were Atorvastatin Calcium, Metformin HCl and Gabapentin.

Has William Hung received payments from drug or device companies?

CMS Open Payments shows $499 in general payments to William Hung from 6 companies from 2016 to 2022. The largest total came from Pfizer Inc.

How long has William Hung been practicing?

William Hung graduated from medical school in 1996, 30 years ago.

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