Quick answers
- Does Helen M. Donnelly-Owens accept Medicare assignment?
- Yes. Medicare's clinician data says Helen M. Donnelly-Owens 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 Helen M. Donnelly-Owens see?
- In 2024, CMS data shows 452 Original Medicare patients and 11,475 services for Helen M. Donnelly-Owens. This counts Original Medicare only and measures volume, not quality.
- What is Helen M. Donnelly-Owens's NPI number?
- 1811447923. 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 Helen M. Donnelly-Owens, 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 | 452 |
|---|---|
| Services billed to Medicare | 11,475 |
| Different services or procedures | 43 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, onabotulinumtoxina, 1 unit (J0585)6,800 services
- Injection, gadobutrol, 0.1 ml (A9585)2,550 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)533 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)193 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)155 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 blood pressure75%
- High cholesterol75%
- Arthritis60%
- Stroke or mini-stroke44%
- Diabetes33%
- Ischemic heart disease33%
Hospitals where Helen M. Donnelly-Owens works
Medicare's Facility Affiliation Data lists Helen M. Donnelly-Owens 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.
- Advocate Condell Medical CenterLibertyville, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140202
- Advocate Good Shepherd HospitalBarrington, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140291
- Advocate Sherman HospitalElgin, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140030
- Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140252
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
Practice locations
Addresses where Helen M. Donnelly-Owens is enrolled with Medicare (CMS data updated October 2, 2026).
- 22285 N Pepper Rd, Suite 401Lake Barrington, IL 60010
Group practices
Medicare enrollment lists Helen M. Donnelly-Owens as a member of this group (CMS data updated October 2, 2026).
- Northwest Neurology, Ltd30 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Lake Barrington
Clinicians with the same Medicare primary specialty in Lake Barrington, IL — not a recommendation.
Other clinicians in Northwest Neurology, Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1811447923 |
| 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