Quick answers
- Which hospitals does Alison B. Callahan work at?
- Medicare's official clinician data lists Alison B. Callahan at 2 hospitals: Newton-Wellesley Hospital and Tufts Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alison B. Callahan see patients?
- Medicare's clinician data lists 3 practice locations, including Wellesley, MA and Boston, MA. Call before your visit to confirm the address.
- What is Alison B. Callahan's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Alison B. Callahan accept Medicare assignment?
- Yes. Medicare's clinician data says Alison B. Callahan 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 Alison B. Callahan?
- (781) 591-4234, as listed in official Medicare / NPI Registry data.
- What is Alison B. Callahan's NPI number?
- 1992016059. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alison B. Callahan works
Medicare's Facility Affiliation Data lists Alison B. Callahan 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
- Tufts Medical CenterBoston, MA · Acute Care Hospital · CCN 220116
Practice locations
Addresses where Alison B. Callahan is enrolled with Medicare (CMS data updated 2026-10-02).
- 20 William St, Suite G15Wellesley, MA 02481 (781) 591‑4234
- 60 Walnut St, Suite 2Wellesley, MA 02481 (617) 964‑1050
- 800 Washington StBoston, MA 02111 (617) 636‑5487
Group practices
Medicare enrollment lists Alison B. Callahan as a member of these groups (CMS data updated 2026-10-02).
- Pratt Ophthalmology Associates Inc53 clinicians in the group
- Newton Wellesley Eye Associates PC14 clinicians in the group
- Dermwellesley LLC9 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Wellesley
Clinicians with the same Medicare primary specialty in Wellesley, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 2010 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992016059 |
| 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