Dr. Larry W. Tsai, MD
- Medicare services, 2019
- 63
- Publications
- 19
- Industry payments
- $344
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 450 Brookline Ave, Boston, MA 02215
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Tsai's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Larry W. Tsai is a pulmonologist in Boston, Massachusetts
Dr. Tsai practices in Boston, Massachusetts.
Dr. Tsai's NPI, 1134179666, was assigned on May 12, 2006. Dr. Tsai holds Massachusetts license 159473.
- NPI
- 1134179666NPI Registry (opens in a new tab)
- NPI enumeration date
- May 12, 2006
- NPI status
- Active
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Larry W. Tsai's practice address is in Boston, Massachusetts
Dr. Tsai's practice address in the NPI Registry is 450 Brookline Ave, Boston, MA 02215, in Suffolk County. The practice phone is (617) 732-5500.
- NPI Registry address450 Brookline Ave, Boston, MA 02215 · Suffolk CountyPhone(617) 732-5500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Larry W. Tsai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tsai practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Tsai's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Larry W. Tsai is one of 485 pulmonologists in Massachusetts
Pulmonary disease is Dr. Tsai's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Tsai is licensed in Massachusetts.
Specialties and state licenses
- Pulmonary disease, MassachusettsPrimary
Pulmonologists near Dr. Tsai
Counts of pulmonologists 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. Larry W. Tsai billed Medicare for 63 services in 2019
CMS data shows 63 Medicare services from Dr. Tsai across 1 procedure code in 2019. Medicare paid $12,109 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Tsai's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 512019: 6324%
Dr. Tsai compared with the Massachusetts median for pulmonologists, 2019
- Dr. Tsai
- Massachusetts median
- Medicare services
- 63vs 47587% below
Medians across 481 pulmonologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Tsai's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Tsai?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tsai and other pulmonologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
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Dr. Larry W. Tsai has 19 publications on record
Dmand AI links 19 papers to Dr. Tsai, published from 2011 to 2023. 2021 was the busiest year, with 5. The most frequent topics are COVID-19, Anti-Bacterial Agents and SARS-CoV-2. Dr. Tsai has published most often in BMJ Open. Dr. Tsai's most frequent co-authors are Ivan Orlando Rosas, MD, Bradley David Hunter, MD, MPH and Ivor S. Douglas, MD.
Dr. Tsai's papers by year, 2011 to 2023
Topics Dr. Tsai writes about most
- COVID-19
- Anti-Bacterial Agents
- SARS-CoV-2
- Tetracyclines
- Double-Blind Method
- Antibodies, Monoclonal, Humanized
- COVID-19 Drug Treatment
- Lung
Dr. Tsai's most frequent co-authors
- Ivan Orlando Rosas, MD8 shared papers
- Bradley David Hunter, MD, MPH4 shared papers
- Ivor S. Douglas, MD2 shared papers
Recent publications by Dr. Tsai
See who Dr. Tsai researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tsai works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Larry W. Tsai received $344 in industry payments in 2019
CMS Open Payments shows 2 general payments to Dr. Tsai from 1 drug or device company in 2019. Travel and lodging make up the largest share, 61% of the total. Genentech, Inc. paid the most, $344.
General payments to Dr. Tsai by kind, 2019 to 2019
- Travel and lodging$20961%
- Food and beverage$13539%
Companies that paid Dr. Tsai the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Larry W. Tsai'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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 |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Larry W. Tsai
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. Larry W. Tsai's NPI number?
Dr. Larry W. Tsai's NPI number is 1134179666. It was assigned on May 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Larry W. Tsai?
Dr. Larry W. Tsai is a pulmonologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Larry W. Tsai practice?
Dr. Tsai practices at 450 Brookline Ave, Boston, MA 02215.
What is Dr. Larry W. Tsai's office phone number?
The practice phone on file for Dr. Tsai is (617) 732-5500.
What is Dr. Larry W. Tsai's medical license number?
Dr. Tsai holds Massachusetts license 159473.
Does Dr. Larry W. Tsai accept Medicare?
Yes. CMS data shows Dr. Tsai billed Medicare for 63 services in 2019.
What services does Dr. Larry W. Tsai bill to Medicare?
In 2019, Dr. Tsai's most billed Medicare services were critical care (99291).
Has Dr. Larry W. Tsai received payments from drug or device companies?
CMS Open Payments shows $344 in general payments to Dr. Tsai from 1 company from 2019 to 2019. The largest total came from Genentech, Inc.
How long has Dr. Larry W. Tsai been practicing?
Dr. Tsai's NPI was assigned in 2006.
Does Dr. Larry W. Tsai do research?
Dmand AI links 19 publications to Dr. Tsai, published from 2011 to 2023.
Who does Dr. Larry W. Tsai publish with?
Dr. Tsai's most frequent co-authors are Ivan Orlando Rosas, MD (8 shared papers), Bradley David Hunter, MD, MPH (4 shared papers) and Ivor S. Douglas, MD (2 shared papers).
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