Quick answers
- Which hospitals does Siva P. Sivakumar work at?
- Medicare's official clinician data lists Siva P. Sivakumar at 5 hospitals: Anna Jaques Hospital, Elliot Hospital, Holy Family Hospital, Merrimack Health Lawrence Hospital and Southern NH Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Siva P. Sivakumar see patients?
- Medicare's clinician data lists 9 practice locations, including Manchester, NH, Milford, NH and Boston, MA. Call before your visit to confirm the address.
- What is Siva P. Sivakumar's specialty?
- Medicare lists Critical Care (Intensivists) as the primary specialty, and also Pulmonary Disease.
- Does Siva P. Sivakumar accept Medicare assignment?
- Yes. Medicare's clinician data says Siva P. Sivakumar 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 Siva P. Sivakumar?
- (603) 672-7600, as listed in official Medicare / NPI Registry data.
- What is Siva P. Sivakumar's NPI number?
- 1992788442. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Siva P. Sivakumar works
Medicare's Facility Affiliation Data lists Siva P. Sivakumar 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
- Elliot HospitalManchester, NH · Acute Care Hospital · CCN 300012
- Holy Family HospitalMethuen, MA · Acute Care Hospital · CCN 220080
- Merrimack Health Lawrence HospitalLawrence, MA · Acute Care Hospital · CCN 220010
- Southern NH Medical CenterNashua, NH · Acute Care Hospital · CCN 300020
Practice locations
Addresses where Siva P. Sivakumar is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.
- 1 Elliot WayManchester, NH 03103
- 10 Jones RdMilford, NH 03055 (603) 672‑7600
- 100 Cambridge St, Fl 14Boston, MA 02114 (203) 666‑8145
- 565 Turnpike St, Suite 85North Andover, MA 01845 (978) 687‑2247
- 70 E StMethuen, MA 01844 (781) 600‑7599
Group practices
Medicare enrollment lists Siva P. Sivakumar as a member of these groups (CMS data updated 2026-10-02).
- Elliot Professional Services427 clinicians in the group
- Foundation Medical Partners Inc317 clinicians in the group
- Tapestry Telehealth PLLC76 clinicians in the group
- Incare LLC60 clinicians in the group
- Incare Tufts PLLC57 clinicians in the group
Specialties
Find other Critical Care (Intensivists) doctors in New Hampshire →
Other critical care doctors in Manchester
Clinicians with the same Medicare primary specialty in Manchester, NH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992788442 |
| 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