Dr. Wei Lien, MD
- Medicare services, 2024
- 498
- Medicare patients, 2024
- 152
- Part D claims, 2024
- 2,339
- Hospital affiliations
- 5
- Medical groups
- 2
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lien's professional email, personal email and mobile number
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Dr. Wei Lien is an internist in Boston, Massachusetts
Dr. Lien practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Lien's NPI, 1750359477, was assigned on March 9, 2006. Dr. Lien graduated from Tufts University School of Medicine in 2001. Dr. Lien holds Massachusetts license 223975.
- NPI
- 1750359477NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870521792
- NPI enumeration date
- March 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Wei Lien practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Lien's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Dr. Wei Lien is affiliated with 7 sites of care and 2 medical groups
Dr. Lien's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Lien is also affiliated with Brigham and Women's Hospital. The medical group on file is Massachusetts General Hospital. Dmand AI also links Dr. Lien to 3 more hospitals, 1 community health center, 1 home health agency and 1 medical group, each named with a free account. Dr. Lien's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Wei Lien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lien practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Wei Lien is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Lien's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lien is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Lien
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. Wei Lien billed Medicare for 498 services in 2024
CMS data shows 498 Medicare services from Dr. Lien across 5 procedure codes in 2024, for 152 Medicare patients. Medicare paid $27,662 for them. Every service was in an office.
Dr. Lien's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3152024: 35814%
- Other services
- 2023: 02024: 140
Dr. Lien compared with the Massachusetts median for internists, 2024
- Dr. Lien
- Massachusetts median
- Medicare services
- 498vs 43116% above
- Medicare patients
- 152vs 19422% below
- Part D claims
- 1,883vs 4024.7 times
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Lien's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Wei Lien treated 152 Medicare patients in 2024, average age 71
CMS counts 152 Medicare patients who saw Dr. Lien in 2024. The largest group is 65 to 74, with 57 patients. 62% of them have high cholesterol, and 54% have high blood pressure. 32% are also on Medicaid. Their average risk score is 1.17, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lien's median patient age at 67, with 36% women.
Dr. Lien's Medicare patients by age, 2024
Dr. Lien's Medicare patients by sex, 2024
- Women5939%
- Men9361%
Chronic conditions among Dr. Lien's Medicare patients, 2024
- High cholesterol62%
- High blood pressure54%
- Mood disorders26%
- Anxiety24%
- Arthritis23%
- Depression23%
- Ischemic heart disease23%
- Diabetes22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women36%
- Men63%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Wei Lien wrote 2,339 Medicare Part D claims in 2024
In 2024, Dr. Lien wrote 2,339 Medicare Part D claims for 206 patients. 84% of them were for generic drugs. CMS names the drug for 1,883 of them, across 59 drugs with 11 or more claims each, at $224,998 in total drug cost. In 2023, CMS named 1,522 claims across 47 drugs.
Dr. Lien's Part D claims by kind of drug, 2024
- Generic1,962 claims84%
- Brand-name341 claims15%
- Other36 claims2%
Dr. Lien's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Lien's Part D claims, 2024
- Opioids2%55 of 2,339 claims
- Antibiotics1%29 of 2,339 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,5222024: 1,88324%
Drugs named by CMS: 59 in 2024, 47 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Wei Lien offers telehealth to Medicare patients
Dr. Lien accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lien as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Wei Lien graduated from Tufts University School of Medicine
Dr. Lien graduated from Tufts University School of Medicine in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Wei Lien'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Wei Lien
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. Wei Lien's NPI number?
Dr. Wei Lien's NPI number is 1750359477. It was assigned on March 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Wei Lien?
Dr. Wei Lien is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Wei Lien practice?
Dr. Lien practices at 55 Fruit Street, Boston, MA 02114. Dr. Lien's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Lien to 3 hospitals, 1 community health center, 1 home health agency and 1 medical group.
What is Dr. Wei Lien's office phone number?
The practice phone on file for Dr. Lien is (617) 726-2000.
What is Dr. Wei Lien's medical license number?
Dr. Lien holds Massachusetts license 223975.
Which hospitals is Dr. Wei Lien affiliated with?
Dr. Lien practices at Massachusetts General Hospital in Boston, Massachusetts. Dr. Lien is also affiliated with Brigham and Women's Hospital. Dmand AI links Dr. Lien to 3 more hospitals.
What medical group is Dr. Wei Lien part of?
Dr. Lien is linked to Massachusetts General Hospital. Dmand AI links Dr. Lien to 1 more medical group.
Does Dr. Wei Lien accept Medicare?
Yes. CMS data shows Dr. Lien billed Medicare for 498 services in 2024, and Dr. Lien accepts Medicare assignment.
Does Dr. Wei Lien offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lien as offering telehealth services.
How many Medicare patients does Dr. Wei Lien see?
CMS counts 152 Medicare patients who saw Dr. Lien in 2024, with an average age of 71.
Show 4 more questionsShow fewer questions
What services does Dr. Wei Lien bill to Medicare?
In 2024, Dr. Lien's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99215).
Where did Dr. Wei Lien go to medical school?
Dr. Lien graduated from Tufts University School of Medicine in 2001.
What drugs does Dr. Wei Lien prescribe most?
In 2024 Medicare Part D data, Dr. Lien's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
How long has Dr. Wei Lien been practicing?
Dr. Lien graduated from medical school in 2001, 25 years ago.
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