Helen Keizhen Lyo
- Medicare services, 2023
- 16
- Part D claims, 2024
- 45
- Publications
- 3
- Hospital affiliations
- 1
- Industry payments
- $1,229
- Practice address
- 801 Massachusetts Ave Crosstown 6b, Boston, MA 02118
- Practice phone
- Call (617) 414-5951
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Evans Medical Foundation - Boston (Massachusetts Ave)
Primary care practice · Boston, Massachusetts
Find Helen Lyo'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.
Helen Keizhen Lyo is an internist in Boston, Massachusetts
Helen Lyo practices at Evans Medical Foundation - Boston (Massachusetts Ave) in Boston, Massachusetts.
Helen Lyo's NPI, 1609336676, was assigned on March 25, 2019. Helen Lyo holds Massachusetts license 291273.
- NPI
- 1609336676NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092041418
- NPI enumeration date
- March 25, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 414-5951
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Helen Keizhen Lyo practices at 2 locations in Boston, Massachusetts
Helen Lyo's primary practice is Evans Medical Foundation - Boston (Massachusetts Ave), at 801 Massachusetts Ave Crosstown 6b, Boston, MA 02118. The practice phone is (617) 414-5951. The NPI Registry lists Helen Lyo's practice address as 1 Boston Medical Center Pl, Boston, MA 02118.
- Evans Medical Foundation - Boston (Massachusetts Ave)Primary801 Massachusetts Ave Crosstown 6b, Boston, MA 02118Phone(617) 414-5951
- NPI Registry address1 Boston Medical Center Pl, Boston, MA 02118 · Suffolk CountyPhone(617) 414-7399
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Helen Keizhen Lyo is affiliated with 2 sites of care and 2 medical groups
Helen Lyo's primary practice is Evans Medical Foundation - Boston (Massachusetts Ave) in Boston, Massachusetts. Helen Lyo is also affiliated with John H. Stroger, Jr. Hospital of Cook County. The medical group on file is Boston University Medical Group (Boston University Internal Medicine Associates). Dmand AI also links Helen Lyo to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Helen Keizhen Lyo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Helen Lyo practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Evans Medical Foundation - Boston (Massachusetts Ave) | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Helen Keizhen Lyo is one of 5,528 internists in Massachusetts
Internal medicine is Helen Lyo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Helen Lyo is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Helen Lyo
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
Helen Keizhen Lyo billed Medicare for 16 services in 2023
CMS data shows 16 Medicare services from Helen Lyo across 1 procedure code in 2023. Medicare paid $2,319 for them. Every service was in a facility, such as a hospital, rather than an office.
Helen Lyo compared with the Massachusetts median for internists, 2023
- Helen Lyo
- Massachusetts median
- Medicare services
- 16vs 43196% below
- Part D claims
- 51vs 40287% below
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Helen Lyo's most billed Medicare procedure codes, 2023
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 Helen Lyo?
Medicare shows one payer. Book a meeting to get commercial claims data for Helen Lyo and other internists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Helen Keizhen Lyo wrote 45 Medicare Part D claims in 2024
In 2024, Helen Lyo wrote 45 Medicare Part D claims for 24 patients. 62% of them were for generic drugs. They cover 3 drugs, with $1,589 in total drug cost. In 2021, CMS named 149 claims across 9 drugs.
Helen Lyo's Part D claims by kind of drug, 2024
- Generic28 claims62%
- Brand-name17 claims38%
Helen Lyo'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: 1492022: 5166%
Drugs named by CMS: 3 in 2022, 9 in 2021.
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
How Helen Keizhen Lyo takes part in Medicare
Helen Lyo 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Helen Keizhen Lyo has 3 publications on record
Dmand AI links 3 papers to Helen Lyo in 2019. 2019 was the busiest year, with 3. Helen Lyo's most frequent co-authors are Manjeet Singh Bhamra, MD, Veena Hari Dronamraju, MD and Mosab Abdulbaset Frefer, MD.
Helen Lyo's most frequent co-authors
- Manjeet Singh Bhamra, MD2 shared papers
- Veena Hari Dronamraju, MD2 shared papers
- Mosab Abdulbaset Frefer, MD2 shared papers
Recent publications by Helen Lyo
See who Helen Lyo researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Helen Lyo works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Helen Keizhen Lyo received $1,229 in industry payments from 2023 to 2025
CMS Open Payments shows 12 general payments to Helen Lyo from 7 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Cook Medical LLC paid the most, $538.
General payments to Helen Lyo by program year, 2023 to 2025
Companies that paid Helen Lyo the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Helen Keizhen Lyo's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Helen Keizhen Lyo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Helen Keizhen Lyo's NPI number?
Helen Keizhen Lyo's NPI number is 1609336676. It was assigned on March 25, 2019, and it is active in the NPI Registry.
What does Helen Keizhen Lyo specialize in?
Helen Keizhen Lyo is an internist in Boston, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Helen Keizhen Lyo practice?
Helen Lyo practices at 801 Massachusetts Ave Crosstown 6b, Boston, MA 02118. Helen Lyo also practices at 1 Boston Medical Center Pl, Boston, MA 02118. Helen Lyo's primary practice is Evans Medical Foundation - Boston (Massachusetts Ave) in Boston, Massachusetts. Dmand AI also links Helen Lyo to 1 medical group.
What is Helen Keizhen Lyo's office phone number?
The practice phone on file for Helen Lyo is (617) 414-5951.
What is Helen Keizhen Lyo's medical license number?
Helen Lyo holds Massachusetts license 291273.
Which hospitals is Helen Keizhen Lyo affiliated with?
Helen Lyo is affiliated with John H. Stroger, Jr. Hospital of Cook County.
What medical group is Helen Keizhen Lyo part of?
Helen Lyo is linked to Boston University Medical Group (Boston University Internal Medicine Associates). Dmand AI links Helen Lyo to 1 more medical group.
Does Helen Keizhen Lyo accept Medicare?
Yes. CMS data shows Helen Lyo billed Medicare for 16 services in 2023, and Helen Lyo accepts Medicare assignment.
What services does Helen Keizhen Lyo bill to Medicare?
In 2023, Helen Lyo's most billed Medicare services were hospital inpatient care (99223).
What drugs does Helen Keizhen Lyo prescribe most?
In 2022 Medicare Part D data, Helen Lyo's most prescribed drugs by claims were Atorvastatin Calcium, Ventolin Hfa and Losartan Potassium.
Show 4 more questionsShow fewer questions
Has Helen Keizhen Lyo received payments from drug or device companies?
CMS Open Payments shows $1,229 in general payments to Helen Lyo from 7 companies from 2023 to 2025. The largest total came from Cook Medical LLC.
How long has Helen Keizhen Lyo been practicing?
Helen Lyo's NPI was assigned in 2019.
Does Helen Keizhen Lyo do research?
Dmand AI links 3 publications to Helen Lyo.
Who does Helen Keizhen Lyo publish with?
Helen Lyo's most frequent co-authors are Manjeet Singh Bhamra, MD (2 shared papers), Veena Hari Dronamraju, MD (2 shared papers) and Mosab Abdulbaset Frefer, MD (2 shared papers).
Selling to internal medicine practices?
See internists in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card