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BARBARA O'CALLAGHAN RN, NP
NPI 1003041104
Registered Nurse - Oncology in Lawrenceville, GA

Active since May 19, 2009PECOS EnrolledAccepts Medicare Assignment
631 PROFESSIONAL DRIVE, 450, LAWRENCEVILLE, GA 30046(770) 963-8030(770) 339-9577 Get Directions Write a Review

NPPES record last updated: February 3, 2010. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Barbara O'callaghan Rn, Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BARBARA O'CALLAGHAN RN, NP (NPI 1003041104) is an individual oncology provider in Lawrenceville, Georgia, licensed in Georgia (RN139570) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, is affiliated with Northside Hospital, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1003041104
Entity TypeIndividualFemale
Primary Taxonomy163WX0200X
Provider Legal NameBARBARA O'CALLAGHANCredential: RN, NP
Location Address631 PROFESSIONAL DRIVE, 450Lawrenceville, GA 30046-7651
Mailing Address651 Carroll's WayBuford, GA 30518
Phone(770) 963-8030
Fax(770) 339-9577
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateMay 19, 2009
Last NPPES UpdateFebruary 3, 2010
✔ NPI 1003041104 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRegistered Nurse · OncologyNursing Service Providers
Taxonomy Code163WX0200X
License✔ Licensed in GA · RN139570
631 PROFESSIONAL DRIVE, Lawrenceville, GA 30046
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Barbara O'callaghan Rn, Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID941332738
PECOS Enrollment IDI20100714000353
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
165 services90 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
145 services82 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
67 services54 patients
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
29 services20 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northside Hospital

Acute Care Hospitals · Atlanta, GA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110161
Location1000 Johnson Ferry Road, NEAtlanta, GA 30342 · Fulton County
Birthing friendly

Northside Hospital Duluth

Acute Care Hospitals · Duluth, GA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number110252
Location3620 Howell Ferry RoadDuluth, GA 30096 · Gwinnett County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HUGHSTON CLINIC PC
Durable Medical Equipment & Medical Supplies
631 PROFESSIONAL DRIVE, SUITE 170
LAWRENECEVILLE, GA 30046
Gwinnett County (678) 312-2663
DR. ALEXANDER SAKER JR. M.D.
Internal Medicine (Hematology & Oncology)
631 PROFESSIONAL DRIVE, SUITE 450
LAWRENCEVILLE, GA 30046
Gwinnett County (770) 963-8030
SATVIR SINGH M.D.
Internal Medicine (Hematology & Oncology)
631 PROFESSIONAL DRIVE, SUITE 450
LAWRENCEVILLE, GA 30046
Gwinnett County (770) 963-8030
WALLACE FORD MARTIN MD
Surgery
631 PROFESSIONAL DRIVE, SUITE 300
LAWRENCEVILLE, GA 30046
Gwinnett County (770) 962-9977
SUBURBAN HEMATOLOGY ONCOLOGY ASSOCIATES, PC
Internal Medicine (Hematology & Oncology)
631 PROFESSIONAL DRIVE, SUITE 450
LAWRENCEVILLE, GA 30046
Gwinnett County (770) 963-8030
SUDHINDRA K ANEGUNDI MD
Surgery (Vascular Surgery)
631 PROFESSIONAL DRIVE, SUITE 300
LAWRENCEVILLE, GA 30046
Gwinnett County (770) 962-9977
JOHN A. CHANDLER PA
Physician Assistant (Surgical)
631 PROFESSIONAL DRIVE, SUITE 200
LAWRENCEVILLE, GA 30046
Gwinnett County (770) 579-1894
DR. CHRISTOPHER T HAGENSTAD M.D.
Internal Medicine (Hematology & Oncology)
631 PROFESSIONAL DRIVE, STE 210
LAWRENCEVILLE, GA 30046
Gwinnett County (678) 312-3235

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Barbara O'callaghan's NPI number?

The NPI number for Barbara O'callaghan is 1003041104. It was assigned to this individual provider in the NPPES registry on May 19, 2009.

Where is Barbara O'callaghan located?

Barbara O'callaghan practices at 631 Professional Drive 450, Lawrenceville, GA 30046. The listed phone number is (770) 963-8030.

What is Barbara O'callaghan's specialty?

The primary specialty registered for this NPI is Registered Nurse, specializing in Oncology, with taxonomy code 163WX0200X.

Is Barbara O'callaghan enrolled in Medicare?

Yes. Barbara O'callaghan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Barbara O'callaghan affiliated with any hospitals?

According to CMS data, Barbara O'callaghan is affiliated with Northside Hospital and Northside Hospital Duluth.

When was this NPI record last updated?

The NPPES record for Barbara O'callaghan was last updated on February 3, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.