Shawna O'Reilly, D.O.
NPI 1841581956 · Hospice and Palliative Medicine (Internal Medicine) Physician · Barrington, IL
Enrolled with Medicare as Practitioner - Hospice/Palliative Care · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shawna O'Reilly, D.O. is a Hospice and Palliative Medicine (Internal Medicine) Physician provider in Barrington, IL (NPI 1841581956).
Provider details
- NPI number
- 1841581956
- Entity type
- Individual
- Primary specialty
- Hospice and Palliative Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036144273 (IL)
Specialties & taxonomies
- Hospice and Palliative Medicine (Internal Medicine) PhysicianPrimary207RH0002XLicense 036144273 (IL)
Allopathic & Osteopathic Physicians
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
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
362 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 90 | $80 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 84 | $122 |
| Advance Care Planning, First 30 Minutes99497 | 81 | $77 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 52 | $178 |
| Prolonged Hospital Inpatient Or Observation Care Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By ThG0316 | 31 | $31 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-04-22
- Last updated
- 2024-09-20
- Certified
- 2024-09-20
Frequently asked questions
- What is Shawna O'Reilly's NPI number?
- Shawna O'Reilly's National Provider Identifier (NPI) is 1841581956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shawna O'Reilly's specialty?
- Shawna O'Reilly is listed in the NPPES registry with a primary specialty of Hospice and Palliative Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Shawna O'Reilly located?
- Shawna O'Reilly's practice location on file with NPPES is 405 Lake Zurich Rd, Barrington, IL 60010-3141.
- What is Shawna O'Reilly's phone number?
- The practice phone number listed in the NPPES registry for Shawna O'Reilly is (847) 381-5599.
- Does Shawna O'Reilly accept Medicare?
- Shawna O'Reilly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shawna O'Reilly's NPI active?
- Yes — Shawna O'Reilly's NPI (1841581956) is active in the NPPES registry as of the last update on 2024-09-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.