Am J Emerg Med
Aortic Aneurysm, AbdominalAortic Aneurysm, Thoracic
Dr. William Chenwei Wu, DO
NPI1558567826
- Medicare services, 2022
- 11
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 371
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 3440 E La Palma Ave, Anaheim, CA 92806
- Practice phone
- Call (714) 279-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Wu'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 Chenwei Wu is an emergency medicine physician in Anaheim, California
Dr. Wu practices at Orange County - Anaheim Medical Center in Anaheim, California, part of Kaiser Permanente.
Dr. Wu's NPI, 1558567826, was assigned on June 25, 2007. Dr. Wu graduated from Touro University California - Vallejo in 2007. Dr. Wu holds California license 20A-10610.
NPI and contact details
- NPI
- 1558567826NPI Registry (opens in a new tab)
- NPI enumeration date
- June 25, 2007
- NPI status
- Active
- Practice phone
- (714) 279-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. William Chenwei Wu practices at Orange County - Anaheim Medical Center in Anaheim, California
Dr. Wu's primary practice is Orange County - Anaheim Medical Center, at 3440 E La Palma Ave, Anaheim, CA 92806 in Orange County. The practice phone is (714) 279-4000.
- Orange County - Anaheim Medical Center3440 E La Palma Ave, Anaheim, CA 92806 · Orange CountyPhone(714) 279-4000
Source: Dmand AI Affiliation Data
Dr. William Chenwei Wu is affiliated with 2 sites of care and 2 medical groups
Dr. Wu's primary practice is Orange County - Anaheim Medical Center in Anaheim, California, part of Kaiser Permanente. Dr. Wu is also affiliated with Adventist Health Sonora. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Wu to 1 more medical group, named with a free account.
Adventist Health SonoraSouthern California Permanente Medical Group1 medical groupName with a free account
See all 4 affiliations for Dr. WuSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Chenwei Wu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wu practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Orange County - Anaheim Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Chenwei Wu is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Wu's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Wu is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Wu's licenses on file in 2 states: California and New York.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- New York license
Emergency medicine physicians near Dr. Wu
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
7,423emergency medicine physicians in California121emergency medicine physicians in Anaheim75emergency medicine physicians at Orange County - Anaheim Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William Chenwei Wu billed Medicare for 11 services in 2022
CMS data shows 11 Medicare services from Dr. Wu across 1 procedure code in 2022, for 12 Medicare patients. Medicare paid $1,143 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202211
Medicare patients12
Paid by Medicare$1,143
Procedure codes1
Dr. Wu's Medicare services by type, 2019 to 2022
- 2019
- 2022
- Office and hospital visits
- 2019: 152022: 1127%
Dr. Wu compared with the California median for emergency medicine physicians, 2022
- Dr. Wu
- California median
- Medicare services
- 11vs 26596% below
- Medicare patients
- 12vs 24395% below
- Part D claims
- 263vs 624.2 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Wu's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wu and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Chenwei Wu treated 12 Medicare patients in 2024, average age 75
CMS counts 12 Medicare patients who saw Dr. Wu in 2024. Their average risk score is 1.20, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Wu's median patient age at 36, with 59% women.
Medicare patients, 202412
Average age75
Average risk score1.20
Dr. Wu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Chenwei Wu wrote 371 Medicare Part D claims in 2024
In 2024, Dr. Wu wrote 371 Medicare Part D claims for 181 patients. 93% of them were for generic drugs. CMS names the drug for 263 of them, across 8 drugs with 11 or more claims each, at $3,665 in total drug cost. In 2023, CMS named 249 claims across 8 drugs.
Part D claims, 2024371
Drugs named by CMS8
Total drug cost$3,665
Part D patients181
Dr. Wu's Part D claims by kind of drug, 2024
- Generic346 claims93%
- Brand-name25 claims7%
Dr. Wu'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.
Drug classes CMS tracks in Dr. Wu's Part D claims, 2024
- Opioids11%41 of 371 claims
- Antibiotics20%74 of 371 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2492024: 2636%
Drugs named by CMS: 8 in 2024, 8 in 2023.
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
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Dr. William Chenwei Wu has 1 publication on record
Dmand AI links 1 paper to Dr. Wu in 2010. Dr. Wu's most frequent co-authors are Derek R. Linklater, MD and Christopher Allan Mitchell, MD.
Papers1
Dr. Wu's most frequent co-authors
Recent publications by Dr. Wu
See who Dr. Wu researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Wu works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William Chenwei Wu received $1,084 in industry payments from 2016 to 2023
CMS Open Payments shows 10 general payments to Dr. Wu from 5 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $508.
General payments to Dr. Wu by program year, 2016 to 2023
Companies that paid Dr. Wu the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Chenwei Wu graduated from Touro University California - Vallejo
Dr. Wu graduated from Touro University California - Vallejo in 2007. Dr. Wu is a member of AOA.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. William Chenwei Wu accepts plans from 1 insurance carrier
Dr. Wu is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Wu accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. William Chenwei Wu'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) |
| Part D prescribing | Medicare 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) |
| 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 Chenwei Wu
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 Chenwei Wu's NPI number?
Dr. William Chenwei Wu's NPI number is 1558567826. It was assigned on June 25, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. William Chenwei Wu?
Dr. William Chenwei Wu is an emergency medicine physician in Anaheim, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. William Chenwei Wu practice?
Dr. Wu practices at 3440 E La Palma Ave, Anaheim, CA 92806. Dr. Wu's primary practice is Orange County - Anaheim Medical Center in Anaheim, California, part of Kaiser Permanente. Dmand AI also links Dr. Wu to 1 medical group.
What is Dr. William Chenwei Wu's office phone number?
The practice phone on file for Dr. Wu is (714) 279-4000.
What is Dr. William Chenwei Wu's medical license number?
Dr. Wu holds California license 20A-10610, one of the licenses on file in 2 states.
Which states has Dr. William Chenwei Wu been licensed in?
Dmand AI has state licenses on file for Dr. Wu in California (2008 to 2027) and New York (2010 to 2026).
Which hospitals is Dr. William Chenwei Wu affiliated with?
Dr. Wu practices at Orange County - Anaheim Medical Center in Anaheim, California. Dr. Wu is also affiliated with Adventist Health Sonora.
What medical group is Dr. William Chenwei Wu part of?
Dr. Wu is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Wu to 1 more medical group.
Does Dr. William Chenwei Wu accept Medicare?
Yes. CMS data shows Dr. Wu billed Medicare for 11 services in 2022.
How many Medicare patients does Dr. William Chenwei Wu see?
CMS counts 12 Medicare patients who saw Dr. Wu in 2024, with an average age of 75.
Show 9 more questionsShow fewer questions
Is Dr. William Chenwei Wu board certified?
Yes. Dr. Wu is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. William Chenwei Wu bill to Medicare?
In 2022, Dr. Wu's most billed Medicare services were emergency department visit (99284).
Where did Dr. William Chenwei Wu go to medical school?
Dr. Wu graduated from Touro University California - Vallejo in 2007.
What drugs does Dr. William Chenwei Wu prescribe most?
In 2024 Medicare Part D data, Dr. Wu's most prescribed drugs by claims were Ondansetron ODT, Morphine Sulfate and Naloxone HCl.
Has Dr. William Chenwei Wu received payments from drug or device companies?
CMS Open Payments shows $1,084 in general payments to Dr. Wu from 5 companies from 2016 to 2023. The largest total came from Abbott Laboratories.
How long has Dr. William Chenwei Wu been practicing?
Dr. Wu graduated from medical school in 2007, 19 years ago.
Does Dr. William Chenwei Wu do research?
Dmand AI links 1 publication to Dr. Wu.
Who does Dr. William Chenwei Wu publish with?
Dr. Wu's most frequent co-authors are Derek R. Linklater, MD (1 shared paper) and Christopher Allan Mitchell, MD (1 shared paper).
What insurance does Dr. William Chenwei Wu accept?
Dr. Wu is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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