Dr. William Wang, MD
- Medicare services, 2023
- 11
- Medicare patients, 2024
- 14
- Part D claims, 2024
- 33
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 9333 Imperial Highway, Downey, CA 90242
- Practice phone
- Call (562) 461-6007
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Wang'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 Wang is an internist in Downey, California
Dr. Wang practices at Downey Medical Center in Downey, California, part of Kaiser Permanente.
Dr. Wang's NPI, 1518105022, was assigned on January 22, 2009. Dr. Wang graduated from SUNY Downstate Health Sciences University in 2006. Dr. Wang holds California license A103764.
- NPI
- 1518105022NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4385781665
- NPI enumeration date
- January 22, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (562) 461-6007
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Wang practices at Downey Medical Center in Downey, California
Dr. Wang's primary practice is Downey Medical Center, at 9333 Imperial Highway, Downey, CA 90242 in Los Angeles County. The practice phone is (562) 461-6007.
- Downey Medical Center9333 Imperial Highway, Downey, CA 90242 · Los Angeles CountyPhone(562) 461-6007
Source: Dmand AI Affiliation Data
Dr. William Wang is affiliated with 3 sites of care and 1 medical group
Dr. Wang's primary practice is Downey Medical Center in Downey, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Wang to 1 more breast imaging center and 1 group practice or clinic, 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 Wang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wang practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Downey Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Wang is one of 16,751 internists in California
Internal medicine is Dr. Wang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Wang is board certified in internal medicine by the American Board of Internal Medicine. Dr. Wang is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Wang
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
Dr. William Wang billed Medicare for 11 services in 2023
CMS data shows 11 Medicare services from Dr. Wang across 1 procedure code in 2023, for 14 Medicare patients. Medicare paid $1,598 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Wang's Medicare services by type, 2019 to 2023
- 2019
- 2023
- Office and hospital visits
- 2019: 292023: 1162%
Dr. Wang compared with the California median for internists, 2023
- Dr. Wang
- California median
- Medicare services
- 11vs 36197% below
- Medicare patients
- 14vs 15191% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Wang's most billed Medicare procedure codes, 2023
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. Wang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wang and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Wang treated 14 Medicare patients in 2024, average age 72
CMS counts 14 Medicare patients who saw Dr. Wang in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.62, 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. Wang's median patient age at 67, with 55% women.
Chronic conditions among Dr. Wang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Wang wrote 33 Medicare Part D claims in 2024
In 2024, Dr. Wang wrote 33 Medicare Part D claims for 15 patients. 85% of them were for generic drugs.
Dr. Wang's Part D claims by kind of drug, 2024
- Generic28 claims85%
- Brand-name and other5 claims15%
Drug classes CMS tracks in Dr. Wang's Part D claims, 2024
- Antibiotics45%15 of 33 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. William Wang takes part in Medicare
Dr. Wang 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 Wang has 1 publication on record
Dmand AI links 1 paper to Dr. Wang.
Recent publications by Dr. Wang
See who Dr. Wang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Wang works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William Wang received $227 in industry payments from 2018 to 2023
CMS Open Payments shows 3 general payments to Dr. Wang from 3 drug and device companies from 2018 to 2023. Food and beverage make up the largest share, 100% of the total. CeQur Corporation paid the most, $127.
General payments to Dr. Wang by program year, 2018 to 2023
Companies that paid Dr. Wang the most, 2018 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Wang graduated from SUNY Downstate Health Sciences University
Dr. Wang graduated from SUNY Downstate Health Sciences University in 2006.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. William Wang accepts plans from 2 insurance carriers
Dr. Wang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Wang accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. William Wang'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 (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 Wang
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 Wang's NPI number?
Dr. William Wang's NPI number is 1518105022. It was assigned on January 22, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. William Wang?
Dr. William Wang is an internist in Downey, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William Wang practice?
Dr. Wang practices at 9333 Imperial Highway, Downey, CA 90242. Dr. Wang's primary practice is Downey Medical Center in Downey, California, part of Kaiser Permanente. Dmand AI also links Dr. Wang to 1 breast imaging center and 1 group practice or clinic.
What is Dr. William Wang's office phone number?
The practice phone on file for Dr. Wang is (562) 461-6007.
What is Dr. William Wang's medical license number?
Dr. Wang holds California license A103764.
Which hospitals is Dr. William Wang affiliated with?
Dr. Wang practices at Downey Medical Center in Downey, California.
What medical group is Dr. William Wang part of?
Dr. Wang is linked to Southern California Permanente Medical Group.
Does Dr. William Wang accept Medicare?
Yes. CMS data shows Dr. Wang billed Medicare for 11 services in 2023, and Dr. Wang accepts Medicare assignment.
How many Medicare patients does Dr. William Wang see?
CMS counts 14 Medicare patients who saw Dr. Wang in 2024, with an average age of 72.
Is Dr. William Wang board certified?
Yes. Dr. Wang is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. William Wang bill to Medicare?
In 2023, Dr. Wang's most billed Medicare services were hospital inpatient care (99223).
Where did Dr. William Wang go to medical school?
Dr. Wang graduated from SUNY Downstate Health Sciences University in 2006.
Has Dr. William Wang received payments from drug or device companies?
CMS Open Payments shows $227 in general payments to Dr. Wang from 3 companies from 2018 to 2023. The largest total came from CeQur Corporation.
How long has Dr. William Wang been practicing?
Dr. Wang graduated from medical school in 2006, 20 years ago.
Does Dr. William Wang do research?
Dmand AI links 1 publication to Dr. Wang.
What insurance does Dr. William Wang accept?
Dr. Wang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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