Quick answers
- Which hospitals does Mary Twarog work at?
- Medicare's official clinician data lists Mary Twarog at 1 hospital: Newton-Wellesley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mary Twarog see patients?
- Medicare's clinician data lists 1 practice location in Newton, MA. Call before your visit to confirm the address.
- What is Mary Twarog's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Mary Twarog accept Medicare assignment?
- Yes. Medicare's clinician data says Mary Twarog 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 Mary Twarog?
- (617) 243-6298, as listed in official Medicare / NPI Registry data.
- What is Mary Twarog's NPI number?
- 1699425207. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mary Twarog works
Medicare's Facility Affiliation Data lists Mary Twarog 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 Mary Twarog is enrolled with Medicare (CMS data updated 2026-10-02).
- 2014 Washington StNewton, MA 02462 (617) 243‑6298
Group practices
Medicare enrollment lists Mary Twarog as a member of this group (CMS data updated 2026-10-02).
- Commonwealth Anesthesia Associates, Inc92 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Newton
Clinicians with the same Medicare primary specialty in Newton, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Buffalo School Of Medicine |
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699425207 |
| 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