Barbara O'callaghan, RN, NP - Medicare Nurse Practitioner in Lawrenceville, GA

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Barbara O'callaghan, RN, NP is a medicare enrolled "Registered Nurse - Oncology" in Lawrenceville, Georgia. She graduated from nursing school in 2008 and has 18 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice North Atlanta Oncology Services Llc and her current practice location is 631 Professional Drive, 450, Lawrenceville, Georgia. You can reach out to her office (for appointments etc.) via phone at (770) 963-8030.

Barbara O'callaghan is licensed to practice in Georgia (license number RN139570) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1003041104.

Contact Information

Barbara O'callaghan, RN, NP
631 Professional Drive, 450,
Lawrenceville, GA 30046-7651
(770) 963-8030
(770) 339-9577

Map and Direction




Provider's Profile

Full NameBarbara O'callaghan
GenderFemale
SpecialityNurse Practitioner
Experience18 Years
Location631 Professional Drive, Lawrenceville, Georgia
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Barbara O'callaghan graduated from nursing school in 2008
  NPI Data:
  • NPI Number: 1003041104
  • Provider Enumeration Date: 05/19/2009
  • Last Update Date: 02/03/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 0941332738
  • Enrollment ID: I20100714000353

Medical Identifiers

Medical identifiers for Barbara O'callaghan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003041104NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
163WX0200XRegistered Nurse - Oncology RN139570 (Georgia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northside HospitalAtlanta, GAHospital
Northside Hospital DuluthDuluth, GAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
North Atlanta Oncology Services Llc185062742329

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. Barbara O'callaghan allows following entities to bill medicare on her behalf.
Entity NameGwinnett Hospital System, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952340994
PECOS PAC ID: 8123916426
Enrollment ID: O20040309000009
Entity NameSuburban Hematology Oncology Associates, PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1508926759
PECOS PAC ID: 3870557424
Enrollment ID: O20041115000402
Entity NameNorth Atlanta Oncology Services LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871055434
PECOS PAC ID: 1850627423
Enrollment ID: O20190719002959

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. Barbara O'callaghan 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
Barbara O'callaghan, RN, NP
651 Carroll's Way,
Buford, GA 30518

Ph: Not Available		Barbara O'callaghan, RN, NP
631 Professional Drive, 450,
Lawrenceville, GA 30046-7651

Ph: (770) 963-8030

Reviews and Comments


Registered Nurse Nurses in Lawrenceville, GA

Harriet Adigwu, RN
Registered Nurse
Medicare: Not Enrolled in Medicare
Practice Location: 175 Gwinnett Dr, Lawrenceville, GA 30046
Phone: 678-209-2394    
Mrs. Latrina Graham, RN
Registered Nurse
Medicare: Not Enrolled in Medicare
Practice Location: 175 Gwinnett Dr, Lawrenceville, GA 30046
Phone: 678-209-2394    
Abidemi Macgregor,
Registered Nurse
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Practice Location: 762 Lynnfield Dr, Lawrenceville, GA 30045
Phone: 678-727-6192    
Shekita Marie Glover, RN
Registered Nurse
Medicare: Not Enrolled in Medicare
Practice Location: 175 Gwinnett Dr, Lawrenceville, GA 30046
Phone: 678-209-2394    
Miss Tiffany Adriana Zeigler,
Registered Nurse
Medicare: Not Enrolled in Medicare
Practice Location: 175 Gwinnett Dr, Lawrenceville, GA 30046
Phone: 678-209-2394    
Jesica Areli Diaz-najera,
Registered Nurse
Medicare: Not Enrolled in Medicare
Practice Location: 3063 Normandy Rdg, Lawrenceville, GA 30044
Phone: 714-592-9129    
Liliana Mihaela Lungu, RN
Registered Nurse
Medicare: Not Enrolled in Medicare
Practice Location: 1602 Cregon Ct, Lawrenceville, GA 30043
Phone: 678-665-0238    

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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