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

Dr. Lakshmi Sivasankar, MD

Individual provider Internal Medicine Physician · NPI 1497799779

Dr. Lakshmi Sivasankar, MD is an Internal Medicine in Chelmsford, Massachusetts. Qualified in 1989, 37 years ago. Practices with Atrius Health Inc, a 1,205-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
37
Licensed in
MA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

228 Billerica Rd
Chelmsford, MA 01824-3604
Phone: (978) 250-6419
Fax: (978) 250-6472
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 234130 (MA)

Record details

NPI number1497799779
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 16, 2006
Last updated in NPPESNovember 17, 2020
Certification dateNovember 17, 2020
Mailing address228 Billerica Rd, Chelmsford, MA 01824-3604

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Group practice Atrius Health Inc — 1205 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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