Dr. Timothy Chen-Yuan Lin, MD
- Medicare services, 2024
- 135
- Medicare patients, 2024
- 104
- Part D claims, 2022
- 80
- Hospital affiliations
- 1
- Medical groups
- 3
- 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
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Dr. Timothy Chen-Yuan Lin is an internist in Boston, Massachusetts
Dr. Lin practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Lin's NPI, 1669931903, was assigned on March 17, 2019. Dr. Lin graduated from University of California, San Diego School of Medicine in 2019. Dr. Lin holds Massachusetts license 291292.
- NPI
- 1669931903NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022347426
- NPI enumeration date
- March 17, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy Chen-Yuan Lin practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Lin'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. Timothy Chen-Yuan Lin is affiliated with 2 sites of care and 3 medical groups
Dr. Lin's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Lin to 2 more medical groups and 1 community health center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Timothy Chen-Yuan Lin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lin practices, 2 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 |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Timothy Chen-Yuan Lin is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Lin's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lin is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Lin
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. Timothy Chen-Yuan Lin billed Medicare for 135 services in 2024
CMS data shows 135 Medicare services from Dr. Lin across 4 procedure codes in 2024, for 104 Medicare patients. Medicare paid $13,243 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1392024: 1353%
- Imaging
- 2023: 142024: 0100%
- Surgery
- 2023: 142024: 0100%
Dr. Lin compared with the Massachusetts median for internists, 2024
- Dr. Lin
- Massachusetts median
- Medicare services
- 135vs 43169% below
- Medicare patients
- 104vs 19446% below
- Part D claims
- 80vs 40280% below
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Lin'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. Timothy Chen-Yuan Lin treated 104 Medicare patients in 2024, average age 73
CMS counts 104 Medicare patients who saw Dr. Lin in 2024. The largest group is 65 to 74, with 34 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 43% are also on Medicaid. Their average risk score is 3.63, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Lin's median patient age at 75, with 44% women.
Dr. Lin's Medicare patients by age, 2024
Dr. Lin's Medicare patients by sex, 2024
- Women6159%
- Men4341%
Chronic conditions among Dr. Lin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease65%
- Depression63%
- Mood disorders63%
- Chronic kidney disease61%
- Heart failure60%
- Anxiety59%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Timothy Chen-Yuan Lin wrote 80 Medicare Part D claims in 2022
In 2022, Dr. Lin wrote 80 Medicare Part D claims. Every claim was for a generic drug. They cover 5 drugs, with $979 in total drug cost. In 2021, CMS named 124 claims across 6 drugs.
Dr. Lin's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1242022: 8035%
Drugs named by CMS: 5 in 2022, 6 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Timothy Chen-Yuan Lin takes part in Medicare
Dr. Lin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Timothy Chen-Yuan Lin graduated from University of California, San Diego School of Medicine
Dr. Lin graduated from University of California, San Diego School of Medicine in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Timothy Chen-Yuan Lin'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Timothy Chen-Yuan Lin
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. Timothy Chen-Yuan Lin's NPI number?
Dr. Timothy Chen-Yuan Lin's NPI number is 1669931903. It was assigned on March 17, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy Chen-Yuan Lin?
Dr. Timothy Chen-Yuan Lin is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Timothy Chen-Yuan Lin practice?
Dr. Lin practices at 55 Fruit Street, Boston, MA 02114. Dr. Lin's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Lin to 2 medical groups and 1 community health center.
What is Dr. Timothy Chen-Yuan Lin's office phone number?
The practice phone on file for Dr. Lin is (617) 726-2000.
What is Dr. Timothy Chen-Yuan Lin's medical license number?
Dr. Lin holds Massachusetts license 291292.
Which hospitals is Dr. Timothy Chen-Yuan Lin affiliated with?
Dr. Lin practices at Massachusetts General Hospital in Boston, Massachusetts.
What medical group is Dr. Timothy Chen-Yuan Lin part of?
Dr. Lin is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Lin to 2 more medical groups.
Does Dr. Timothy Chen-Yuan Lin accept Medicare?
Yes. CMS data shows Dr. Lin billed Medicare for 135 services in 2024, and Dr. Lin accepts Medicare assignment.
How many Medicare patients does Dr. Timothy Chen-Yuan Lin see?
CMS counts 104 Medicare patients who saw Dr. Lin in 2024, with an average age of 73.
What services does Dr. Timothy Chen-Yuan Lin bill to Medicare?
In 2024, Dr. Lin's most billed Medicare services were hospital inpatient care (99223), hospital inpatient care (99233) and hospital inpatient care (99232).
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Where did Dr. Timothy Chen-Yuan Lin go to medical school?
Dr. Lin graduated from University of California, San Diego School of Medicine in 2019.
What drugs does Dr. Timothy Chen-Yuan Lin prescribe most?
In 2022 Medicare Part D data, Dr. Lin's most prescribed drugs by claims were Atorvastatin Calcium, Gabapentin and Lisinopril.
How long has Dr. Timothy Chen-Yuan Lin been practicing?
Dr. Lin graduated from medical school in 2019, 7 years ago.
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