Alexandra Fonseca
NPI 1043707649 · Pain Medicine (Anesthesiology) Physician · Boston, MA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Fonseca is a Pain Medicine (Anesthesiology) Physician provider in Boston, MA (NPI 1043707649).
Provider details
- NPI number
- 1043707649
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 1016064 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
86 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 36 | $17 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 24 | $140 |
| Anesthesia for Other Procedure on Lower Abdomen00840 | 14 | $395 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 12 | $68 |
Typical Medicare-allowed amounts for these services range $17–$395 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (2)
- 55 Fruit StBoston, MA 02114-2621Phone: (617) 726-3030
- 6431 Fannin St # 1.134Houston, TX 77030-1501Phone: (713) 500-6526
Registry dates
- Enumerated
- 2018-04-18
- Last updated
- 2026-02-20
- Certified
- 2026-02-20
Frequently asked questions
- What is Alexandra Fonseca's NPI number?
- Alexandra Fonseca's National Provider Identifier (NPI) is 1043707649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Fonseca's specialty?
- Alexandra Fonseca is listed in the NPPES registry with a primary specialty of Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is Alexandra Fonseca located?
- Alexandra Fonseca's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Alexandra Fonseca's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Fonseca is (617) 732-8210.
- Does Alexandra Fonseca accept Medicare?
- Alexandra Fonseca is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Fonseca's NPI active?
- Yes — Alexandra Fonseca's NPI (1043707649) is active in the NPPES registry as of the last update on 2026-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.