Quick answers
- Which hospitals does Marc I. Blatt work at?
- Medicare's official clinician data lists Marc I. Blatt at 5 hospitals: Beth Israel Deaconess Hospital - Milton, Beth Israel Deaconess Hospital - Needham, Beth Israel Deaconess Medical Center, Mount Auburn Hospital and UMass Memorial Health - Harrington Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marc I. Blatt see patients?
- Medicare's clinician data lists 6 practice locations, including Boston, MA, Milton, MA and Quincy, MA. Call before your visit to confirm the address.
- What is Marc I. Blatt's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Marc I. Blatt accept Medicare assignment?
- Yes. Medicare's clinician data says Marc I. Blatt 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 Marc I. Blatt?
- (781) 453-3000, as listed in official Medicare / NPI Registry data.
- What is Marc I. Blatt's NPI number?
- 1689255994. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marc I. Blatt works
Medicare's Facility Affiliation Data lists Marc I. Blatt at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Beth Israel Deaconess Hospital - MiltonMilton, MA · Acute Care Hospital · CCN 220108
- Beth Israel Deaconess Hospital - NeedhamNeedham, MA · Acute Care Hospital · CCN 220083
- Beth Israel Deaconess Medical CenterBoston, MA · Acute Care Hospital · CCN 220086
- Mount Auburn HospitalCambridge, MA · Acute Care Hospital · CCN 220002
- UMass Memorial Health - Harrington HospitalSouthbridge, MA · Acute Care Hospital · CCN 220019
Practice locations
Addresses where Marc I. Blatt is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1 Deaconess RdBoston, MA 02215 (781) 453‑3000
- 100 Highland StMilton, MA 02186 (617) 615‑4000
- 100 Walter J Hannon Pkwy, Suite 143Quincy, MA 02169 (617) 615‑4000
- 101 Page StNew Bedford, MA 02740 (508) 679‑3131
- 148 Chestnut StNeedham, MA 02492 (781) 983‑9088
Group practices
Medicare enrollment lists Marc I. Blatt as a member of these groups (CMS data updated 2026-10-02).
- Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc1,740 clinicians in the group
- Associated Physicians of Harvard Medical Faculty Physicians at Beth Is565 clinicians in the group
- Bid-Milton Physician Associates Inc53 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Boston
Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Vanderbilt University School Of Medicine |
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689255994 |
| 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