Dan Liu
Ophthalmology Physician · Worcester, MA
Dan Liu is an ophthalmology physician with a practice address in Worcester, Massachusetts, and NPI 1033565874, issued on May 11, 2016. Check the license (Massachusetts 282936, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Dan Liu
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 282936 MA
Self-reported in NPPES; status is on the state search - Practice location
- 591 Lincoln St, Worcester, MA 01605
- Phone
- (508) 853-2020
- Enumerated
- May 11, 2016
- Record last updated
- Sep 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200805000741); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 791 in Massachusetts → Look up another NPI →
Also registered at 591 Lincoln St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dennis Arinella, M.D.Ophthalmology Physician1982719944
- William DunbarOptometrist1942436605
- Robert FrischOptometrist1740416486
- James Gordon, RDOOptician1811093321
- Edward Kazarian, M.D.Ophthalmology Physician1821173733
- Darren PeckhamOptometrist1134356611
Verify Dan Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 282936Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,495 Medicare Part D claims for 438 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.
Most prescribed
- Prednisolone Acetate401 claims
- Ofloxacin270 claims
- Ketorolac Tromethamine252 claims
- Latanoprost85 claims
- Neomycin-Polymyxin-Dexameth62 claims
- Valacyclovir49 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.
Industry payments in 2024: $989.03
22 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Milford-Franklin Eye Center, LLCFranklin, MA
- Susan M. Yeomans, MD PCMarlborough, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dan Liu among 791 ophthalmology physician records in Massachusetts
Dan Liu is one of 791 ophthalmology physician records with a practice address in Massachusetts. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 80% of them.
- NPI issued2016 · 80% of these records are older, 17% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2016 · median 2002 among the 518 with a school on file
- Record last updated2021 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Massachusetts
There are 791 ophthalmology physician records in Massachusetts.
All 791 in Massachusetts → Every provider in Worcester → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Dennis Arinella, M.D.Worcester, MA 016051982719944
- George Asdourian, M.D.Worcester, MA 016051083604342
- Michael Bradbury, MDWorcester, MA 016051407915341
- Richard Eisenberg, MDWorcester, MA 016051093765455
- Misha-Michelle Faustina, MDWorcester, MA 016051669438057
- Jeffrey Gallo, MDWorcester, MA 016051720013923
- Robert Gise, MDWorcester, MA 016051528024452
- Edward Kazarian, M.D.Worcester, MA 016051821173733
Common questions
What is Dan Liu's NPI number?
Dan Liu's National Provider Identifier (NPI) is 1033565874, issued on May 11, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Dan Liu located?
The NPPES record lists a practice address at 591 Lincoln St, Worcester, MA, 01605. Phone: (508) 853-2020. Providers update this record themselves, so call before visiting.
How can I verify Dan Liu's license?
NPPES lists Massachusetts license number 282936, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Dan Liu prescribe under Medicare Part D?
In 2024, Dan Liu had 1,495 Medicare Part D claims for 438 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.