Quick answers
- Does Sigurros Davidsdottir accept Medicare assignment?
- Yes. Medicare's clinician data says Sigurros Davidsdottir accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Sigurros Davidsdottir see?
- In 2024, CMS data shows 80 Original Medicare patients and 867 services for Sigurros Davidsdottir. This counts Original Medicare only and measures volume, not quality.
- What is Sigurros Davidsdottir's NPI number?
- 1396932919. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Sigurros Davidsdottir, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 80 |
|---|---|
| Services billed to Medicare | 867 |
| Different services or procedures | 7 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Evaluation of neuropsychological test, each additional hour (96133)243 services
- Administration of psychological or neuropsychological test by technician, each additional 30 minutes (96139)161 services
- Administration of psychological or neuropsychological test, each additional 30 minutes (96137)145 services
- Evaluation of neuropsychological test, first hour (96132)80 services
- Administration of psychological or neuropsychological test, first 30 minutes (96136)80 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol74%
- High blood pressure69%
- Arthritis49%
- Depression43%
- Anxiety39%
- Ischemic heart disease29%
Hospitals where Sigurros Davidsdottir works
Medicare's Facility Affiliation Data lists Sigurros Davidsdottir at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Brigham and Women's HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220110
Practice locations
Addresses where Sigurros Davidsdottir is enrolled with Medicare (CMS data updated October 2, 2026).
- 50 Staniford StBoston, MA 02114
- 55 Fruit StBoston, MA 02114 (617) 724‑0287
Group practices
Medicare enrollment lists Sigurros Davidsdottir as a member of this group (CMS data updated October 2, 2026).
- Massachusetts General Physicians Organization Inc3,558 clinicians in the group
Specialties
- Clinical Psychologistprimary
Find other clinicians: Clinical Psychologist, Massachusetts →
Other clinical psychologists in Boston
Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.
Other clinicians in Massachusetts General Physicians Organization Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2007 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1396932919 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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