Shawna O'reilly, DO - Medicare Internal Medicine in Barrington, IL

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Shawna O'reilly, DO is a medicare enrolled "Internal Medicine - Hospice And Palliative Medicine" physician in Barrington, Illinois. Her current practice location is 405 Lake Zurich Rd, Barrington, Illinois. You can reach out to her office (for appointments etc.) via phone at (847) 381-5599.

Shawna O'reilly is licensed to practice in Illinois (license number 036144273) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1841581956.

Contact Information

Shawna O'reilly, DO
405 Lake Zurich Rd,
Barrington, IL 60010-3141
(847) 381-5599
(847) 381-1431

Map and Direction




Physician's Profile

Full NameShawna O'reilly
GenderFemale
SpecialityInternal Medicine - Hospice And Palliative Medicine
Location405 Lake Zurich Rd, Barrington, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1841581956
  • Provider Enumeration Date: 04/22/2011
  • Last Update Date: 09/20/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 4183924426
  • Enrollment ID: I20180207001765

Medical Identifiers

Medical identifiers for Shawna O'reilly such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1841581956NPI-NPPES
63135OtherAMC

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084B0040XPsychiatry & Neurology - Behavioral Neurology & Neuropsychiatry 036144273 (Illinois)Secondary
2084H0002XPsychiatry & Neurology - Hospice And Palliative Medicine 036144273 (Illinois)Secondary
207RH0002XInternal Medicine - Hospice And Palliative Medicine 036144273 (Illinois)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Shawna O'reilly allows following entities to bill medicare on her behalf.
Entity NameJourneycare, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154324994
PECOS PAC ID: 2062578305
Enrollment ID: O20090512000566
Entity NameAlexian Brothers Medical Group Specialty Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275990061
PECOS PAC ID: 1456636612
Enrollment ID: O20170330001530

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Shawna O'reilly is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Shawna O'reilly, DO
1000 N Westmoreland Rd,
Lake Forest, IL 60045-1658

Ph: (847) 535-7058		Shawna O'reilly, DO
405 Lake Zurich Rd,
Barrington, IL 60010-3141

Ph: (847) 381-5599

Reviews and Comments


Internal Medicine Doctors in Barrington, IL

Dr. Avani Tushar Mehta, M.D.
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Dr. Jeffrey H Freihage, M.D.
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Dr. Donald F Cronin, MD
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Stacey L Mckelvey, MD
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Practice Location: 200 Fox Glen Ct, Barrington, IL 60010
Phone: 847-382-7165    Fax: 847-713-8160
Jennifer Louise Vakharia, MD
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Practice Location: 1020 S Grove Ave, Barrington, IL 60010
Phone: 630-712-6373    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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