Elizabeth Susan O Brien, MD - Medicare Pediatrics in Chesterfield, MO

Elizabeth Susan O Brien, MD is a medicare enrolled "Pediatrics" physician in Chesterfield, Missouri. Her current practice location is 16216 Baxter Rd, Suite 299, Chesterfield, Missouri. You can reach out to her office (for appointments etc.) via phone at (636) 530-9999.

Elizabeth Susan O Brien is licensed to practice in Missouri (license number R9J85) 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 1831276427.

Contact Information

Elizabeth Susan O Brien, MD
16216 Baxter Rd, Suite 299,
Chesterfield, MO 63017
(636) 530-9999
(636) 530-0977

Map and Direction




Physician's Profile

Full NameElizabeth Susan O Brien
GenderFemale
SpecialityPediatrics
Location16216 Baxter Rd, Chesterfield, Missouri
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1831276427
  • Provider Enumeration Date: 11/01/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 1557427978
  • Enrollment ID: I20090309000642

Medical Identifiers

Medical identifiers for Elizabeth Susan O Brien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1831276427NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics R9J85 (Missouri)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. Elizabeth Susan O Brien allows following entities to bill medicare on her behalf.
Entity NameSsm Cardinal Glennon Children's Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174577670
PECOS PAC ID: 7012828163
Enrollment ID: O20031231000604

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. Elizabeth Susan O Brien 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
Elizabeth Susan O Brien, MD
12768 Whispering Hills Lane,
St Louis, MO 63146

Ph: (314) 469-4955
Elizabeth Susan O Brien, MD
16216 Baxter Rd, Suite 299,
Chesterfield, MO 63017

Ph: (636) 530-9999

Reviews and Comments


Pediatrics Doctors in Chesterfield, MO

Dr. Katherine L Komendowski, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 226 S Woods Mill Rd, Ste 36w, Chesterfield, MO 63017
Phone: 314-453-9666    Fax: 314-453-9895
Mohamad Al-hosni, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 14443 White Birch Valley Ln, Chesterfield, MO 63017
Phone: 314-629-5671    
Dr. Robert James Profumo, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 1308 Westchester Manor Ln, Chesterfield, MO 63005
Phone: 314-432-9270    Fax: 314-432-9271
Thomas Mckinney, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 226 S Woods Mill Rd Ste 32w, Chesterfield, MO 63017
Phone: 314-576-1616    Fax: 314-576-5271
Bien Zhang, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 232 S Woods Mill Rd, Chesterfield, MO 63017
Phone: 314-542-4897    
Dr. Janet G Mueller, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 13001 N Outer 40 Rd, Ste 340, Chesterfield, MO 63017
Phone: 314-454-6444    Fax: 314-454-6445
Dr. Anna P Huger, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 13001 N Outer 40 Rd Ste 330, Chesterfield, MO 63017
Phone: 314-454-5500    Fax: 314-454-5501

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.