Quick answers
- Does Margaret A. Sweeney accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret A. Sweeney 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 Margaret A. Sweeney see?
- In 2024, CMS data shows 275 Original Medicare patients and 3,275 services for Margaret A. Sweeney. This counts Original Medicare only and measures volume, not quality.
- What is Margaret A. Sweeney's NPI number?
- 1619036431. 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 Margaret A. Sweeney, 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 | 275 |
|---|---|
| Services billed to Medicare | 3,275 |
| Different services or procedures | 69 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)599 services
- Blood test, comprehensive group of blood chemicals (80053)457 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)411 services
- Blood test, lipids (cholesterol and triglycerides) (80061)394 services
- Blood test, thyroid stimulating hormone (tsh) (84443)377 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 cholesterol75%
- High blood pressure70%
- Arthritis47%
- Anxiety31%
- Depression28%
- Osteoporosis23%
Hospitals where Margaret A. Sweeney works
Medicare's Facility Affiliation Data lists Margaret A. Sweeney 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.
- Island HospitalAnacortes, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500007
- Skagit Valley HospitalMount Vernon, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500003
- Whidbeyhealth Medical CenterCoupeville, WA · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 501339
Practice locations
Addresses where Margaret A. Sweeney is enrolled with Medicare (CMS data updated October 2, 2026).
- 2511 M Ave, Suite AAnacortes, WA 98221 (360) 293‑9813
- 2511 M Ave AAnacortes, WA 98221
- 2600 Compass RdGlenview, IL 60026
Group practices
Medicare enrollment lists Margaret A. Sweeney as a member of these groups (CMS data updated October 2, 2026).
- Select Rehabilitation, LLC2,046 clinicians in the group
- Select Outpatient Services Inc805 clinicians in the group
- Family Care Network, PLLC124 clinicians in the group
- Island Family Physicians, PLLC6 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Anacortes
Clinicians with the same Medicare primary specialty in Anacortes, WA — not a recommendation.
Other clinicians in Select Rehabilitation, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1619036431 |
| 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