Dr. William Hon-Wai Yong, MD
- Medicare services, 2024
- 911
- Medicare patients, 2024
- 122
- Publications
- 3
- Hospital affiliations
- 1
- Industry payments
- $5,040
- Practice address
- 101 City Drive South, Orange, CA 92868
- Practice phone
- Call (714) 456-7890
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Yong's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. William Hon-Wai Yong is a pathologist in Orange, California
Dr. Yong practices at UCI Health - Orange in Orange, California, part of UC Irvine.
Dr. Yong's NPI, 1578560520, was assigned on July 6, 2005. Dr. Yong graduated from David Geffen School of Medicine at UCLA in 1991. Dr. Yong holds California license G81305.
- NPI
- 1578560520NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779586144
- NPI enumeration date
- July 6, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 456-7890
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Hon-Wai Yong practices at UCI Health - Orange in Orange, California
Dr. Yong's primary practice is UCI Health - Orange, at 101 City Drive South, Orange, CA 92868 in Orange County. The practice phone is (714) 456-7890.
- UCI Health - Orange101 City Drive South, Orange, CA 92868 · Orange CountyPhone(714) 456-7890
Source: Dmand AI Affiliation Data
Dr. William Hon-Wai Yong is affiliated with 3 sites of care and 2 medical groups
Dr. Yong's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. The medical group on file is UCI Health Pathology and Laboratory Services. Dmand AI also links Dr. Yong to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Hon-Wai Yong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yong practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Health - Orange | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Hon-Wai Yong is one of 1,354 pathologists in California
Anatomic pathology and clinical pathology is Dr. Yong's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Yong is board certified in anatomic pathology by the American Board of Pathology. Dr. Yong is licensed in California.
Specialties and state licenses
- Anatomic pathology and clinical pathology, CaliforniaPrimary
Pathologists near Dr. Yong
Counts of pathologists 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
Dr. William Hon-Wai Yong billed Medicare for 911 services in 2024
CMS data shows 911 Medicare services from Dr. Yong across 12 procedure codes in 2024, for 122 Medicare patients. Medicare paid $24,443 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Yong's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 9342024: 9112%
Dr. Yong compared with the California median for pathologists, 2024
- Dr. Yong
- California median
- Medicare services
- 911vs 1,15321% below
- Medicare patients
- 122vs 44773% below
Medians across 1,094 pathologists in California with Dmand AI profiles that report each measure.
Dr. Yong'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.
Need commercial claims for Dr. Yong?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Yong and other pathologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Hon-Wai Yong treated 122 Medicare patients in 2024, average age 67
CMS counts 122 Medicare patients who saw Dr. Yong in 2024. The largest group is 65 to 74, with 51 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 50% are also on Medicaid. Their average risk score is 4.08, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Yong's median patient age at 56, with 49% women.
Dr. Yong's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Yong's Medicare patients by sex, 2024
- Women5243%
- Men7057%
Chronic conditions among Dr. Yong's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease58%
- Diabetes58%
- Arthritis44%
- Ischemic heart disease42%
- Heart failure35%
- Atrial fibrillation30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women49%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. William Hon-Wai Yong takes part in Medicare
Dr. Yong 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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Dr. William Hon-Wai Yong has 3 publications on record
Dmand AI links 3 papers to Dr. Yong in 2016. Dr. Yong's most frequent co-authors are Marvin Bergsneider, MD, Lawrance Kon-Yip Chung, MD and Jennifer Young Han, MD.
Dr. Yong's most frequent co-authors
- Marvin Bergsneider, MD1 shared paper
- Lawrance Kon-Yip Chung, MD1 shared paper
- Jennifer Young Han, MD1 shared paper
Recent publications by Dr. Yong
See who Dr. Yong researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Yong works with, so you can find a warm path to the right pathologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William Hon-Wai Yong received $5,040 in industry payments from 2019 to 2022
CMS Open Payments shows 6 general payments to Dr. Yong from 2 drug and device companies from 2019 to 2022. Consulting fees make up the largest share, 96% of the total. Amgen Inc. paid the most, $2,965.
General payments to Dr. Yong by program year, 2019 to 2022
General payments to Dr. Yong by kind, 2019 to 2022
- Consulting fees$4,82596%
- Travel and lodging$1443%
- Food and beverage$721%
Companies that paid Dr. Yong the most, 2019 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Hon-Wai Yong graduated from David Geffen School of Medicine at UCLA
Dr. Yong graduated from David Geffen School of Medicine at UCLA in 1991.
- Medical school
- Board certified in anatomic pathology
- Board certified in neuropathology
Source: Dmand AI Professional Profile Data
Dr. William Hon-Wai Yong accepts plans from 3 insurance carriers
Dr. Yong is in network with 3 carriers, including United Healthcare, Blue Cross and Blue Shield of Kansas City and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Yong accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. William Hon-Wai Yong's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William Hon-Wai Yong
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William Hon-Wai Yong's NPI number?
Dr. William Hon-Wai Yong's NPI number is 1578560520. It was assigned on July 6, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William Hon-Wai Yong?
Dr. William Hon-Wai Yong is a pathologist in Orange, California. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. William Hon-Wai Yong practice?
Dr. Yong practices at 101 City Drive South, Orange, CA 92868. Dr. Yong's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. Dmand AI also links Dr. Yong to 2 group practices and clinics and 1 medical group.
What is Dr. William Hon-Wai Yong's office phone number?
The practice phone on file for Dr. Yong is (714) 456-7890.
What is Dr. William Hon-Wai Yong's medical license number?
Dr. Yong holds California license G81305.
Which hospitals is Dr. William Hon-Wai Yong affiliated with?
Dr. Yong practices at UCI Health - Orange in Orange, California.
What medical group is Dr. William Hon-Wai Yong part of?
Dr. Yong is linked to UCI Health Pathology and Laboratory Services. Dmand AI links Dr. Yong to 1 more medical group.
Does Dr. William Hon-Wai Yong accept Medicare?
Yes. CMS data shows Dr. Yong billed Medicare for 911 services in 2024, and Dr. Yong accepts Medicare assignment.
How many Medicare patients does Dr. William Hon-Wai Yong see?
CMS counts 122 Medicare patients who saw Dr. Yong in 2024, with an average age of 67.
Is Dr. William Hon-Wai Yong board certified?
Yes. Dr. Yong is board certified in anatomic pathology by the American Board of Pathology.
Show 7 more questionsShow fewer questions
What services does Dr. William Hon-Wai Yong bill to Medicare?
In 2024, Dr. Yong's most billed Medicare services were lab and pathology test (88350), lab and pathology test (88341) and lab and pathology test (88305).
Where did Dr. William Hon-Wai Yong go to medical school?
Dr. Yong graduated from David Geffen School of Medicine at UCLA in 1991.
Has Dr. William Hon-Wai Yong received payments from drug or device companies?
CMS Open Payments shows $5,040 in general payments to Dr. Yong from 2 companies from 2019 to 2022. The largest total came from Amgen Inc.
How long has Dr. William Hon-Wai Yong been practicing?
Dr. Yong graduated from medical school in 1991, 35 years ago.
Does Dr. William Hon-Wai Yong do research?
Dmand AI links 3 publications to Dr. Yong.
Who does Dr. William Hon-Wai Yong publish with?
Dr. Yong's most frequent co-authors are Marvin Bergsneider, MD (1 shared paper), Lawrance Kon-Yip Chung, MD (1 shared paper) and Jennifer Young Han, MD (1 shared paper).
What insurance does Dr. William Hon-Wai Yong accept?
Dr. Yong is in network with 3 carriers, including United Healthcare, Blue Cross and Blue Shield of Kansas City and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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