Marissa Wasserman
NPI 1386986842 · Anesthesiology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Wasserman is a Anesthesiology Physician provider in Boston, MA (NPI 1386986842).
Provider details
- NPI number
- 1386986842
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
107 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Anesthesia for Exam of Colon Using an Endoscope00812 | 29 | $98 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 22 | $138 |
| Anesthesia for Lens Surgery00142 | 17 | $144 |
| Injection of Anesthetic Agent And/Or Steroid Into Arm Nerve Bundle (brachial Plexus)64415 | 15 | $72 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 12 | $154 |
| Anesthesia for Other Procedure on Top of Arm Bone and Shoulder Joint01630 | 12 | $336 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-03-22
- Last updated
- 2017-05-12
Frequently asked questions
- What is Marissa Wasserman's NPI number?
- Marissa Wasserman's National Provider Identifier (NPI) is 1386986842, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Wasserman's specialty?
- Marissa Wasserman is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Marissa Wasserman located?
- Marissa Wasserman's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Marissa Wasserman's phone number?
- The practice phone number listed in the NPPES registry for Marissa Wasserman is (617) 732-8210.
- Does Marissa Wasserman accept Medicare?
- Marissa Wasserman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Wasserman's NPI active?
- Yes — Marissa Wasserman's NPI (1386986842) is active in the NPPES registry as of the last update on 2017-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.