Quick answers
- Which hospitals does Kumiko E. Tanaka work at?
- Medicare's official clinician data lists Kumiko E. Tanaka at 1 hospital: Newton-Wellesley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Kumiko E. Tanaka see patients?
- Medicare's clinician data lists 2 practice locations, including Newton, MA and Wellesley, MA. Call before your visit to confirm the address.
- What is Kumiko E. Tanaka's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Kumiko E. Tanaka accept Medicare assignment?
- Yes. Medicare's clinician data says Kumiko E. Tanaka 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 Kumiko E. Tanaka?
- (617) 243-6000, as listed in official Medicare / NPI Registry data.
- What is Kumiko E. Tanaka's NPI number?
- 1619396900. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Kumiko E. Tanaka works
Medicare's Facility Affiliation Data lists Kumiko E. Tanaka at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Newton-Wellesley HospitalNewton, MA · Acute Care Hospital · CCN 220101
Practice locations
Addresses where Kumiko E. Tanaka is enrolled with Medicare (CMS data updated 2026-10-02).
- 2014 Washington StNewton, MA 02462 (617) 243‑6000
- 30 Washington StWellesley, MA 02481 (781) 263‑0033
Group practices
Medicare enrollment lists Kumiko E. Tanaka as a member of these groups (CMS data updated 2026-10-02).
- Mass General Brigham Medical Group Suburban Massachusetts Inc602 clinicians in the group
- About Women by Women a Professional Corporation9 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Newton
Clinicians with the same Medicare primary specialty in Newton, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 2014 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1619396900 |
| 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