Physician Profile
Lilian Chen, M.D.
Unclaimed ProfileAbout Dr. Chen
Lilian Chen, M.D. practices colon & rectal surgery in Boston, MA. Lilian is a 2009 graduate of Geisel School of Medicine at Dartmouth. Lilian is also listed as specializing in student in an organized health care education program. Medicare claims data shows Lilian provided 147 services to 121 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, removal of external hemorrhoids by rubber banding, and new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (646) 642-5920
- Email not available
Practice Locations
800 WASHINGTON ST
Boston, MA 02111
Procedures Most Often Billed to Medicare
147 services · 121 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of external hemorrhoids by rubber banding | Procedure | 46221 |
34 | As often as other peers in Colon & Rectal Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
41 | More often than most peers in Colon & Rectal Surgery |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
24 | More often than most peers in Colon & Rectal Surgery |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
20 | As often as other peers in Colon & Rectal Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
16 | Less often than most peers in Colon & Rectal Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
12 | Less often than most peers in Colon & Rectal Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other colorectal surgeons in Boston 8
Same specialty, same city.
More connections — 21 related providers in 3 groups
Trained at Geisel School of Medicine at Dartmouth 5
Other providers in the same specialty who trained at the same institution.
Class of 2009 at Geisel School of Medicine at Dartmouth 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of external hemorrhoids by rubber banding 8
Providers in MA who bill this service to Medicare most often.
Common questions
What kind of doctor is Lilian Chen?
Lilian Chen is a colorectal surgeon in Boston, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Colon & Rectal Surgery”.
NPI registry
What is Lilian Chen's address?
Lilian Chen is listed at 800 Washington St, Boston, MA 02111. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Lilian Chen?
The number on file is (646) 642-5920. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Lilian Chen?
Lilian Chen's National Provider Identifier is 1780813055. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Lilian Chen train?
Lilian Chen attended Geisel School of Medicine at Dartmouth, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Lilian Chen have?
Lilian Chen has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What procedures does Lilian Chen perform?
According to Medicare billing data, Lilian Chen performs procedures including removal of external hemorrhoids by rubber banding, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Lilian Chen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Lilian Chen. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.