Lilian Chen, M.D.
Colon & Rectal Surgery Physician · Boston, MA
Lilian Chen, M.D. is a colon & rectal surgery physician with a practice address in Boston, Massachusetts, and NPI 1780813055, issued on Jul 8, 2009. Check the license (Massachusetts 259851, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Lilian Chen
- Credential
- M.D.
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License numbers
- 259851 MA
241300 MA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Washington St, Boston, MA 02111
- Phone
- (646) 642-5920
- Enumerated
- Jul 8, 2009
- Record last updated
- Jun 27, 2023
- Fax
- (617) 636-6110
- Medicare enrollment
- Enrolled (PECOS I20150701001651); accepts Medicare assignment
- Medical or professional school
- Geisel School Of Medicine At Dartmouth, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 800 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Aalberg, MD, MPHSurgery Physician1326788027
- Omer Abbak, PHARMDPharmacist1114500337
- Aya Abdelnaser, MDStudent in an Organized Health Care Education/Training Program1770425373
- Marie Elise Abi Antoun, MDObstetrics & Gynecology Physician1356042626
- Ahmad AboalfarajSurgery Physician1538517651
- Tala Abu Samaan, MDStudent in an Organized Health Care Education/Training Program1376386250
Verify Lilian Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 259851Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024
135 Medicare Part D claims for 43 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D.
Most prescribed
- Colestipol Hcl26 claims
- Amitriptyline Hcl14 claims
- Ammonium Lactate12 claims
- Loperamide12 claims
- Diclofenac Sodium11 claims
- Hydrocortisone11 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: $8,090.68
28 payments; by number, the most common kind was food and beverage; the largest payer was Applied Medical Resources Corporation. The 1,524 providers of this specialty with any payment received $3,468.16 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 one group practice
- Pratt Surgical Associates IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Colon & Rectal Surgery Physician providers in Massachusetts
There are 55 colon & rectal surgery physician records in Massachusetts.
Other colon & rectal surgery physician records in Massachusetts
- Karim Alavi, MDWorcester, MA1497700777
- Sonia Archer, M.D.Boston, MA1245285733
- Tess AuletWorcester, MA1619394764
- David Becker, MDCambridge, MA1164515151
- Olga Beresneva, M.D.Boston, MA1114345741
- Jonathan Bliggenstorfer, MDBurlington, MA1588195572
- Marcella Bradway, M.D.Pittsfield, MA1669478657
- Elizabeth Breen, MDBurlington, MA1649221458
- Amanda Cimsit, MDBoston, MA1750565693
- Timothy Counihan, M.D.Pittsfield, MA1467411926
Common questions
What is Lilian Chen, M.D.'s NPI number?
Lilian Chen, M.D.'s National Provider Identifier (NPI) is 1780813055, issued on Jul 8, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Lilian Chen, M.D. located?
The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (646) 642-5920. Providers update this record themselves, so call before visiting.
How can I verify Lilian Chen, M.D.'s license?
NPPES lists Massachusetts license number 259851, 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 Lilian Chen, M.D. prescribe under Medicare Part D?
In 2024, Lilian Chen, M.D. had 135 Medicare Part D claims for 43 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.