Dr. Janarthanan Someswarananthan, MD
Dr. Janarthanan Someswarananthan, MD is an Internal Medicine in Chelmsford, Massachusetts. Qualified in 1996, 30 years ago. Practices with Beth Israel Lahey Health Primary Care, Inc, a 353-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Florida and Massachusetts.
- Years since qualifying
- 30
- Licensed in
- FL, MA
- In the registry since
- 2006
- Specialties on file
- 3
What do these letters mean?
- MD — Doctor of Medicine
- A physician who completed allopathic medical school.
Practice location Address checks out
290 Littleton Rd Unit 3Chelmsford, MA 01824-3429
Phone: (978) 685-2460
Show map & directions
Directions in Google Maps · Apple Maps · OpenStreetMap
Pin is approximate — placed at the ZIP-code centre, not the exact door.
Additional practice locations (1)
- 25 Highland Ave, Newburyport, MA 01950-3867 — (978) 463-1000
Specialties & licences
| Internal Medicine Physician (primary) | Taxonomy 207R00000X · Licence 230684 (MA) |
|---|---|
| Internal Medicine Physician | Taxonomy 207R00000X · Licence ME83087 (FL) |
| Hospitalist Physician | Taxonomy 208M00000X · Licence 230684 (MA) |
Record details
| NPI number | 1134212830 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | MD |
| Sole proprietor | Yes |
| NPI enumerated | October 2, 2006 |
| Last updated in NPPES | April 13, 2026 |
| Certification date | April 13, 2026 |
Medicare enrollment
| Medicare specialty | INTERNAL MEDICINE |
|---|---|
| Medical school | OTHER |
| Graduated | 1996 (30 years in practice) |
| Group practice | Beth Israel Lahey Health Primary Care, Inc — 353 clinicians |
| Accepts Medicare assignment | Yes — accepts the Medicare-approved amount |
| Practice locations | 5 on file with Medicare |
Other providers in Chelmsford
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Dr. Roopa Reddy, MD
2 Meeting House Rd, Chelmsford, MA 01824-2700 · (978) 256-5522
-
Danka Samardzic, MD
228 Billerica Rd, Chelmsford, MA 01824-3604 · (978) 250-6100
-
Venkata G Satyam, MD
228 Billerica Rd Internal Medicine, Chelmsford, MA 01824-3604 · (978) 250-6100
-
Dr. Lakshmi Sivasankar, MD
228 Billerica Rd, Chelmsford, MA 01824-3604 · (978) 250-6419
-
Spyridon Kantas MD PC
23 Village Sq, Chelmsford, MA 01824-2712 · (978) 256-4121
-
Dr. Rekha Sundar, MD
3 Meeting House Rd #17, Chelmsford, MA 01824-2738 · (978) 323-2826
-
Ashley Elizabeth Tavares, FNP
3 Meeting House Rd, Chelmsford, MA 01824-2738 · (978) 846-4936
-
Dr. Christina L Wei, MD
228 Billerica Rd, Chelmsford, MA 01824-3604 · (978) 250-6100