Quick answers
- Which hospitals does Hamsa N. Subramanian work at?
- Medicare's official clinician data lists Hamsa N. Subramanian at 3 hospitals: Barnes Jewish Hospital, Mercy Hospital St Louis and Missouri Baptist Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Hamsa N. Subramanian see patients?
- Medicare's clinician data lists 1 practice location in Saint Louis, MO. Call before your visit to confirm the address.
- What is Hamsa N. Subramanian's specialty?
- Medicare lists Allergy/Immunology as the primary specialty.
- Does Hamsa N. Subramanian accept Medicare assignment?
- Yes. Medicare's clinician data says Hamsa N. Subramanian 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.
- Does Hamsa N. Subramanian offer telehealth?
- Medicare's clinician data says Hamsa N. Subramanian offers telehealth services. Ask the office which visits can be done by video or phone.
- What is Hamsa N. Subramanian's NPI number?
- 1154370203. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Hamsa N. Subramanian works
Medicare's Facility Affiliation Data lists Hamsa N. Subramanian at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · CCN 260032
- Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · CCN 260020
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · CCN 260108
Practice locations
Addresses where Hamsa N. Subramanian is enrolled with Medicare (CMS data updated 2026-10-02).
- 12639 Old Tesson Rd, Suite 115Saint Louis, MO 63128
Group practices
Medicare enrollment lists Hamsa N. Subramanian as a member of this group (CMS data updated 2026-10-02).
- Signature Medical Group Inc41 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1154370203 |
| 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