Doctor profile · Federal record

Dr. Shawna O'Reilly, D.O.

Hospice and Palliative Medicine (Internal Medicine) Physician (CMS: Hospice/Palliative Care) · Behavioral Neurology & Neuropsychiatry Physician · Hospice and Palliative Medicine (Psychiatry & Neurology) Physician · Barrington, IL

  • NPI 1841581956
  • Accepts Medicare
  • 15 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
405 Lake Zurich RD
Barrington, IL 600103141
(847) 381-5599
fax (847) 381-1431
Mailing address
1000 N Westmoreland RD
Lake Forest, IL 600451658

Credentials & registration

NPPES · NUCC
NPI registered
April 2011 — 15 yrs on file
Profile last updated
September 20, 2024
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207RH0002X — NUCC code
State license (1)
Illinois #036144273

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841581956. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
338
Distinct HCPCS
7
Medicare allowed
$34,228
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 67 43 $79
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 59 57 $170
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 55 34 $119
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 52 50 $130
99497 Advance care planning, first 30 minutes 41 34 $73
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 35 18 $50
G0316 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 th 29 19 $30

In context: peer comparison

Among 1 peers in this city , average services per provider: 48. This provider delivers 7.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Shawna O'Reilly's medical specialty?
Dr. Shawna O'Reilly practices Hospice and Palliative Medicine (Internal Medicine) Physician in Barrington, IL.
Where does Dr. Shawna O'Reilly practice?
Dr. Shawna O'Reilly practices at 405 Lake Zurich RD, Barrington, IL 600103141. Office phone: 8473815599.
What is Dr. Shawna O'Reilly's NPI?
Dr. Shawna O'Reilly's National Provider Identifier (NPI) is 1841581956, issued by NPPES.
Does Dr. Shawna O'Reilly accept Medicare assignment?
Yes. Dr. Shawna O'Reilly accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shawna O'Reilly commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.