Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Helen Keizhen Lyo

Individual provider Internal Medicine Physician · NPI 1609336676

Helen Keizhen Lyo is a Gastroenterology in Boston, Massachusetts. Qualified in 2019, 7 years ago. Licensed in Massachusetts.

Years since qualifying
7
Licensed in
MA
In the registry since
2019

Practice location Address checks out

801 Massachusetts Ave Crosstown 2
Boston, MA 02118-0211
Phone: (617) 414-7399
Fax: (617) 414-4676
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 291273 (MA)

Record details

NPI number1609336676
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMarch 25, 2019
Last updated in NPPESMay 17, 2022
Certification dateApril 29, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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