Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Colin Woodward O'Brien, MD

Individual provider Cardiovascular Disease Physician · NPI 1245768886

Dr. Colin Woodward O'Brien, MD is registered under Cardiovascular Disease (Cardiology) in Sandy Springs, Georgia. Graduated from Stanford University School of Medicine in 2017, 9 years ago. Practices with Northside Cardiovascular Professional Services, LLC, a 142-clinician group and accepts Medicare assignment. Licensed in Georgia.

Years since qualifying
9
Trained at
Stanford University School of Medicine
Licensed in
GA
In the registry since
2017
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6135 Barfield Rd Ste 100
Sandy Springs, GA 30328-4308
Phone: (404) 962-6000
Fax: (404) 962-6001
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 88949 (GA)

Record details

NPI number1245768886
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 26, 2017
Last updated in NPPESJune 1, 2023
Certification dateJune 1, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolSTANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated 2017 (9 years in practice)
Group practice Northside Cardiovascular Professional Services, Llc — 142 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients626
Services billed 1,872 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,248 39 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $776 5 payments · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Northside Hospital Hospital · Atlanta, GA · listed as Northside Hospital, Inc
  • Northside Hospital Forsyth Hospital · Cumming, GA · listed as Northside Hospital
  • Northside Hospital Gwinnett Hospital · Lawrenceville, GA

Colleagues at Northside Cardiovascular Professional Services, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 142 clinicians in the practice; 12 are shown here.

Other providers in Sandy Springs