Janarthanan Someswarananthan, MD
NPI 1134212830ActiveIndividual· Internal Medicine· Chelmsford, MA
Internal Medicine (MD) with Beth Israel Lahey Health Primary Care, Inc and 2 other groups, practicing in Chelmsford, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $1,698,648 for 35,893 claims, against $184,355 paid for services in 2024. Lists Anna Jaques Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1134212830 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Oct 2, 2006 |
| Last updated in NPPES | Apr 13, 2026 |
| Certified by provider | Apr 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 230684 | MA |
| Internal Medicine | 207R00000X | ME83087 | FL |
| Hospitalist | 208M00000X | 230684 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (MA); Practitioner - Internal Medicine (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 998 |
|---|---|
| Services billed | 2,193 across 25 procedure codes |
| Paid by Medicare | $184,355 |
Part D prescriptions in 2024
| Prescriptions (claims) | 35,893 · 35,948 30-day fills |
|---|---|
| Patients | 989 |
| Total drug cost | $1,698,648 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Beth Israel Lahey Health Primary Care, IncSouth Hamilton, MA · 353 clinicians
- New England Community Medical Services PLLCChelmsford, MA · 55 clinicians
- Lawrence General Community Medical Service PLLCChelmsford, MA · 52 clinicians
Hospital affiliations
- Anna Jaques HospitalNewburyport, MA
- Beth Israel Deaconess Medical CenterBoston, MA
- Holy Family HospitalMethuen, MA
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA
- Portsmouth Regional HospitalPortsmouth, NH
Other facilities
- Bayada Home Health Care, IncHome health agency · Wilmington, MA
- Beth Israel Lahey Health at HomeHome health agency · Beverly, MA
- CaretendersHome health agency · Needham Heights, MA
- Right Care Services, IncHome health agency · Lawrence, MA
- Ascend HospiceHospice · Worcester, MA
- Care Dimensions, IncHospice · Danvers, MA
- Compassus - Southern MassachusettsHospice · North Andover, MA
- Harborside Hospice of Massachusetts, LLCHospice · Haverhill, MA
- Tufts Medicine Care at HomeHospice · Lowell, MA
- Adviniacare NewburyportNursing home · Newburyport, MA
- Aspen Hill Rehabiliation & Healthcare CenterNursing home · Haverhill, MA
- Cedar View Rehabilitation and Healthcare CenterNursing home · Methuen, MA
- SalemhavenNursing home · Salem, NH
- Willow Brook Rehabilitation and Healthcare CenterNursing home · Wilmington, MA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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