Quick answers
- Where does Michael A. Herzig see patients?
- Medicare's clinician data lists 2 practice locations, including Boston, MA and Somerville, MA. Call before your visit to confirm the address.
- What is Michael A. Herzig's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Michael A. Herzig accept Medicare assignment?
- Medicare's clinician data says Michael A. Herzig may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Michael A. Herzig?
- (617) 421-1000, as listed in official Medicare / NPI Registry data.
- What is Michael A. Herzig's NPI number?
- 1457336372. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Michael A. Herzig is enrolled with Medicare (CMS data updated 2026-10-02).
- 133 Brookline AveBoston, MA 02215 (617) 421‑1000
- 40 Holland StSomerville, MA 02144 (617) 629‑6000
Group practices
Medicare enrollment lists Michael A. Herzig as a member of this group (CMS data updated 2026-10-02).
- Capa Anesthesia LLC70 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Boston
Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Johns Hopkins University School Of Medicine |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1457336372 |
| 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
- 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