Diana Liu, D.M.D.
Dentist · Watchung, NJ
Diana Liu, D.M.D. is a dentist with a practice address in Watchung, New Jersey, and NPI 1790182764, issued on Nov 19, 2014. Check the license (New Jersey 22DI02575700, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana Liu
- Credential
- D.M.D.
- Primary taxonomy
- Dentist 122300000X
- License numbers
- 22DI02575700 NJ
058172 NY
Self-reported in NPPES; status is on the state search - Practice location
- 445 Watchung Ave, Watchung, NJ 07069
- Phone
- (908) 222-0007
- Enumerated
- Nov 19, 2014
- Record last updated
- Feb 18, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,742 in New Jersey → Look up another NPI →
Verify Diana Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 22DI02575700Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average dentist in 2024
16 Medicare Part D claims, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Diana Liu among 2,742 dentist records in New Jersey
Diana Liu, D.M.D. is one of 2,742 dentist records with a practice address in New Jersey. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 67% of them.
- NPI issued2014 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2016 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 dentist records list a practice address in Watchung
They are 4 of the 177 NPPES records with a practice address in Watchung, and 2,742 dentist records in New Jersey.
All 2,742 in New Jersey → Every provider in Watchung → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Karla Veramie CensonWatchung, NJ 070691699588319
- Michelle Sabater-Weddle, DDSWatchung, NJ 070691063581700
- Anthony Zamarra, DMDWatchung, NJ 070691437254646
- Mark Andrawis, D.M.DRoseland, NJ 070681629434410
- Amin Ayoub, DDSRutherford, NJ 070701235561788
- Frederick Carbone, D.D.S.Roseland, NJ 070681619986783
- Vincent Caruso, DDSRutherford, NJ 070701235324286
- Arthur Crosta, DMDRoseland, NJ 070681821267857
Common questions
What is Diana Liu, D.M.D.'s NPI number?
Diana Liu, D.M.D.'s National Provider Identifier (NPI) is 1790182764, issued on Nov 19, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Diana Liu, D.M.D. located?
The NPPES record lists a practice address at 445 Watchung Ave, Watchung, NJ, 07069. Phone: (908) 222-0007. Providers update this record themselves, so call before visiting.
How can I verify Diana Liu, D.M.D.'s license?
NPPES lists New Jersey license number 22DI02575700, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does Diana Liu, D.M.D. prescribe under Medicare Part D?
In 2024, Diana Liu, D.M.D. had 16 Medicare Part D claims; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.