Quick answers
- Does Sydney Brehany accept Medicare assignment?
- Yes. Medicare's clinician data says Sydney Brehany 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 Sydney Brehany see?
- In 2024, CMS data shows 314 Original Medicare patients and 56,696 services for Sydney Brehany. This counts Original Medicare only and measures volume, not quality.
- What is Sydney Brehany's NPI number?
- 1821529363. 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 Sydney Brehany, 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 | 314 |
|---|---|
| Services billed to Medicare | 56,696 |
| Different services or procedures | 132 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, pembrolizumab, 1 mg (J9271)5,100 services
- Injection, fosaprepitant, 1 mg (J1453)4,200 services
- Injection, ferric derisomaltose, 10 mg (J1437)1,200 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)738 services
- Injection, granisetron hydrochloride, 100 mcg (J1626)560 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 cholesterol58%
- High blood pressure57%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)57%
- Arthritis46%
- Ischemic heart disease26%
- Depression25%
Hospitals where Sydney Brehany works
Medicare's Facility Affiliation Data lists Sydney Brehany 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.
- Humboldt County Memorial HospitalHumboldt, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161334
- MercyOne Des Moines Medical CenterDes Moines, IA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 160083
- Trinity Regional Medical CenterFort Dodge, IA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 160016
- UnityPoint Health - Des Moines Iowa Methodist MediDes Moines, IA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 160082
- University of Iowa Hospital & ClinicsIowa City, IA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 160058
Practice locations
Addresses where Sydney Brehany is enrolled with Medicare (CMS data updated October 2, 2026).
- 1801 Hickman RdDes Moines, IA 50314 (515) 282‑2200
- 1950 SW Magazine Rd, Mission Cancer and Blood U of Ia Health CareAnkeny, IA 50023 (515) 237‑7066
Group practices
Medicare enrollment lists Sydney Brehany as a member of these groups (CMS data updated October 2, 2026).
- State University of Iowa1,897 clinicians in the group
- Broadlawns Medical Center306 clinicians in the group
Specialties
- Medical Oncologyprimary
- Hematologyalso
Other oncologists in Des Moines
Clinicians with the same Medicare primary specialty in Des Moines, IA — not a recommendation.
Other clinicians in State University of Iowa
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Creighton University School Of Medicine |
| Graduation year | 2017 (9 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821529363 |
| 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