Shawna O'Reilly, D.O.
Hospice and Palliative Medicine (Internal Medicine) Physician · Barrington, IL
Shawna O'Reilly, D.O. is a hospice and palliative medicine (internal medicine) physician with a practice address in Barrington, Illinois, and NPI 1841581956, issued on Apr 22, 2011. Check the license (Illinois 036144273, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Shawna O'Reilly
- Credential
- D.O.
- Primary taxonomy
- Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
- License number
- 036144273 IL
Self-reported in NPPES; status is on the state search - Practice location
- 405 Lake Zurich RD, Barrington, IL 60010
- Phone
- (847) 381-5599
- Enumerated
- Apr 22, 2011
- Record last updated
- Sep 20, 2024
- Fax
- (847) 381-1431
- Medicare enrollment
- Enrolled (PECOS I20180207001765); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (internal medicine) physician records → All 94 in Illinois → Look up another NPI →
Also registered at 405 Lake Zurich RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Bartsch, APN-BCAdult Health Nurse Practitioner1427357268
- Paula Beltran, APNPFamily Nurse Practitioner1972050623
- Kevin CayananFamily Nurse Practitioner1316409386
- Robin Daniell, LCSWClinical Social Worker1134441629
- Hanneli Fanega, APN, CNSAdult Health Clinical Nurse Specialist1295193860
- Stephani FigueroaFamily Nurse Practitioner1376007393
Verify Shawna O'Reilly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036144273Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024
12 Medicare Part D claims, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Northwestern Medical Faculty FoundationLake Forest, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shawna O'Reilly among 94 hospice and palliative medicine (internal medicine) physician records in Illinois
Shawna O'Reilly, D.O. is one of 94 hospice and palliative medicine (internal medicine) physician records with a practice address in Illinois. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 52% of them.
- NPI issued2011 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2011 · median 2011 among the 64 with a school on file
- Record last updated2024 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospice and Palliative Medicine (Internal Medicine) Physician providers in Illinois
There are 94 hospice and palliative medicine (internal medicine) physician records in Illinois.
All 94 in Illinois → Every provider in Barrington → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →
The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes
- Sandra Garretson, MDBarrington, IL 600101851337026
- Patricia RitzmanBarrington, IL 600101457566614
- Thomas Pathiyil, DOArlington Heights, IL 600051609495530
- Catherine Deamant, MDGlenview, IL 600251356370837
- Marlen Ortega Cruz, MDGlenview, IL 600251841652757
- Alan Smookler, MDGlenview, IL 600251669469276
- Martha Twaddle, MD, FACP, FAAHPMGlenview, IL 600251366492324
- Gordon Wood, MDGlenview, IL 600251730390766
Common questions
What is Shawna O'Reilly, D.O.'s NPI number?
Shawna O'Reilly, D.O.'s National Provider Identifier (NPI) is 1841581956, issued on Apr 22, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Shawna O'Reilly, D.O. located?
The NPPES record lists a practice address at 405 Lake Zurich RD, Barrington, IL, 60010. Phone: (847) 381-5599. Providers update this record themselves, so call before visiting.
How can I verify Shawna O'Reilly, D.O.'s license?
NPPES lists Illinois license number 036144273, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Shawna O'Reilly, D.O. prescribe under Medicare Part D?
In 2024, Shawna O'Reilly, D.O. had 12 Medicare Part D claims; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.