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Dr. William L. Liao, MD
NPI1639185911
- Part D claims, 2017
- 14
- Publications
- 1
- Industry payments
- $58
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 550 1st Ave, New York, NY 10016
- Practice phone
- Call (732) 458-0300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Liao's professional email, personal email and mobile number
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Dr. William L. Liao is an internist in New York, New York
Dr. Liao practices in New York, New York.
Dr. Liao's NPI, 1639185911, was assigned on July 31, 2006. Dr. Liao holds New Jersey license 33487.
NPI and contact details
- NPI
- 1639185911NPI Registry (opens in a new tab)
- NPI enumeration date
- July 31, 2006
- NPI status
- Active
- Practice phone
- (732) 458-0300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. William L. Liao's practice address is in New York, New York
Dr. Liao's practice address in the NPI Registry is 550 1st Ave, New York, NY 10016, in New York County. The practice phone is (732) 458-0300.
- NPI Registry address550 1st Ave, New York, NY 10016 · New York CountyPhone(732) 458-0300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. William L. Liao's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Liao practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Liao's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William L. Liao is one of 9,643 internists in New York
Internal medicine is Dr. Liao's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Liao is licensed in New Jersey.
Specialties and state licenses
- Internal medicine, New JerseyPrimary
Internists near Dr. Liao
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 L. Liao's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Liao's median patient age at 61, with 44% women.
Dr. Liao'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
- Women44%
- Men56%
Source: Dmand AI Patient Panel Data
Dr. William L. Liao wrote 14 Medicare Part D claims in 2017
In 2017, Dr. Liao wrote 14 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $84 in total drug cost.
Part D claims, 201714
Drugs named by CMS1
Total drug cost$84
Dr. Liao's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. William L. Liao has 1 publication on record
Dmand AI links 1 paper to Dr. Liao in 2013. Dr. Liao's most frequent co-author is Robert Yao-Wen Lin, MD.
Papers1
Dr. Liao's most frequent co-authors
Recent publications by Dr. Liao
See who Dr. Liao researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Liao 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 L. Liao received $58 in industry payments from 2016 to 2023
CMS Open Payments shows 3 general payments to Dr. Liao from 3 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 57% of the total. Teva Pharmaceuticals USA, Inc. paid the most, $25.
General payments to Dr. Liao by program year, 2016 to 2023
General payments to Dr. Liao by kind, 2016 to 2023
$58in total
- Food and beverage$3357%
- Education$2543%
Companies that paid Dr. Liao the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William L. Liao'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| 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 L. Liao
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 L. Liao's NPI number?
Dr. William L. Liao's NPI number is 1639185911. It was assigned on July 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William L. Liao?
Dr. William L. Liao is an internist in New York, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William L. Liao practice?
Dr. Liao practices at 550 1st Ave, New York, NY 10016.
What is Dr. William L. Liao's office phone number?
The practice phone on file for Dr. Liao is (732) 458-0300.
What is Dr. William L. Liao's medical license number?
Dr. Liao holds New Jersey license 33487.
What drugs does Dr. William L. Liao prescribe most?
In 2017 Medicare Part D data, Dr. Liao's most prescribed drugs by claims were Chlorhexidine Gluconate.
Has Dr. William L. Liao received payments from drug or device companies?
CMS Open Payments shows $58 in general payments to Dr. Liao from 3 companies from 2016 to 2023. The largest total came from Teva Pharmaceuticals USA, Inc.
How long has Dr. William L. Liao been practicing?
Dr. Liao's NPI was assigned in 2006.
Does Dr. William L. Liao do research?
Dmand AI links 1 publication to Dr. Liao.
Who does Dr. William L. Liao publish with?
Dr. Liao's most frequent co-authors are Robert Yao-Wen Lin, MD (1 shared paper).
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