Mary Eileen O'sullivan, LCSW - Medicare Clinical Social Worker in St Charles, IL

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Mary Eileen O'sullivan, LCSW is a medicare enrolled "Social Worker - Clinical" provider in St Charles, Illinois. Her current practice location is 905 Manley Rd, St Charles, Illinois. You can reach out to her office (for appointments etc.) via phone at (630) 624-9620.

Mary Eileen O'sullivan is licensed to practice in Illinois (license number 149.024800) 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 1417660168.

Contact Information

Mary Eileen O'sullivan, LCSW
905 Manley Rd,
St Charles, IL 60174-5561
(630) 624-9620
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameMary Eileen O'sullivan
GenderFemale
SpecialitySocial Worker - Clinical
Location905 Manley Rd, St Charles, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1417660168
  • Provider Enumeration Date: 12/27/2022
  • Last Update Date: 05/21/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 5193268704
  • Enrollment ID: I20240624000880

Medical Identifiers

Medical identifiers for Mary Eileen O'sullivan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1417660168NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
1041C0700XSocial Worker - Clinical 149.024800 (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. Mary Eileen O'sullivan allows following entities to bill medicare on her behalf.
Entity NameDavid Goodman Phd Psychologist Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659485878
PECOS PAC ID: 7416909056
Enrollment ID: O20050211000491

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. Mary Eileen O'sullivan 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
Mary Eileen O'sullivan, LCSW
905 Manley Rd,
St Charles, IL 60174-5561

Ph: (630) 624-9620		Mary Eileen O'sullivan, LCSW
905 Manley Rd,
St Charles, IL 60174-5561

Ph: (630) 624-9620

Reviews and Comments


Social Worker in St Charles, IL

Nancy Robin Krtek,
Clinical Social Worker
Medicare: Accepting Medicare Assignments
Practice Location: 473 Dunham Rd, Suite 216, St Charles, IL 60174
Phone: 716-359-6402    
Luz M Happel, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 405 Illinois Ave Unit 2c, St Charles, IL 60174
Phone: 630-377-3535    Fax: 630-377-6703
Jennifer Blandford, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 303 N 2nd St Ste 21, Suite 21, St Charles, IL 60174
Phone: 630-618-8887    
Stephanie Santo, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 111 E Main St, St Charles, IL 60174
Phone: 630-587-3777    
Stephanie Clorinda Stavropoulos,
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 3103 Easton Pl, St Charles, IL 60175
Phone: 630-806-6767    
Mrs. Lauren Danae Matovu, MSW, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 303 N 2nd St Ste 21, St Charles, IL 60174
Phone: 630-797-9864    
Mrs. Katherine D. Brosier, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 409 Illinois Ave Unit 1a, St Charles, IL 60174
Phone: 847-622-3812    

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.