Marc Blatt, MD MBA
NPI 1689255994 · Emergency Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Blatt, MD MBA is a Emergency Medicine Physician provider in Boston, MA (NPI 1689255994).
Provider details
- NPI number
- 1689255994
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD MBA
- Sex
- Male
- Sole proprietor
- No
- License
- 1021450 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 148 Chestnut StNeedham, MA 02492-2523Phone: (781) 453-5400
Registry dates
- Enumerated
- 2021-04-19
- Last updated
- 2025-04-01
- Certified
- 2025-03-31
Frequently asked questions
- What is Marc Blatt's NPI number?
- Marc Blatt's National Provider Identifier (NPI) is 1689255994, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Blatt's specialty?
- Marc Blatt is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Blatt located?
- Marc Blatt's practice location on file with NPPES is 1 Deaconess Rd, Boston, MA 02215-5321.
- What is Marc Blatt's phone number?
- The practice phone number listed in the NPPES registry for Marc Blatt is (617) 754-2400.
- Does Marc Blatt accept Medicare?
- Marc Blatt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Blatt's NPI active?
- Yes — Marc Blatt's NPI (1689255994) is active in the NPPES registry as of the last update on 2025-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.