Quick answers
- Which hospitals does Janarthanan Someswarananthan work at?
- Medicare's official clinician data lists Janarthanan Someswarananthan at 5 hospitals: Anna Jaques Hospital, Beth Israel Deaconess Medical Center, Holy Family Hospital, Lahey Hospital & Medical Center, Burlington and Portsmouth Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Janarthanan Someswarananthan see patients?
- Medicare's clinician data lists 3 practice locations, including South Hamilton, MA, Salem, NH and Chelmsford, MA. Call before your visit to confirm the address.
- What is Janarthanan Someswarananthan's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Janarthanan Someswarananthan accept Medicare assignment?
- Yes. Medicare's clinician data says Janarthanan Someswarananthan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Janarthanan Someswarananthan?
- (978) 468-7381, as listed in official Medicare / NPI Registry data.
- What is Janarthanan Someswarananthan's NPI number?
- 1134212830. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Janarthanan Someswarananthan works
Medicare's Facility Affiliation Data lists Janarthanan Someswarananthan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Anna Jaques HospitalNewburyport, MA · Acute Care Hospital · CCN 220029
- Beth Israel Deaconess Medical CenterBoston, MA · Acute Care Hospital · CCN 220086
- Holy Family HospitalMethuen, MA · Acute Care Hospital · CCN 220080
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA · Acute Care Hospital · CCN 220171
- Portsmouth Regional HospitalPortsmouth, NH · Acute Care Hospital · CCN 300029
Practice locations
Addresses where Janarthanan Someswarananthan is enrolled with Medicare (CMS data updated 2026-10-02).
- 15 Railroad AveSouth Hamilton, MA 01982 (978) 468‑7381
- 23 Geremonty DrSalem, NH 03079 (978) 685‑2460
- 290 Littleton Rd, Unit 3Chelmsford, MA 01824 (978) 685‑2460
Group practices
Medicare enrollment lists Janarthanan Someswarananthan as a member of these groups (CMS data updated 2026-10-02).
- Beth Israel Lahey Health Primary Care, Inc353 clinicians in the group
- New England Community Medical Services PLLC55 clinicians in the group
- Lawrence General Community Medical Service PLLC52 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in South Hamilton
Clinicians with the same Medicare primary specialty in South Hamilton, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134212830 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians