NPPES file of Aug 9, 2026

Thomas Bayard O'Barr, M.D.

Internal Medicine Physician · Woodstock, GA

Thomas Bayard O'Barr, M.D. is an internal medicine physician with a practice address in Woodstock, Georgia, and NPI 1255334033, issued on May 24, 2005. Check the license (Georgia 024472, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255334033
Name
Thomas Bayard O'Barr
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
024472 GA
Self-reported in NPPES; status is on the state search
Practice location
1192 Buckhead Xing Ste E, Woodstock, GA 30189
Phone
(678) 494-4450
Enumerated
May 24, 2005
Record last updated
Jan 29, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(678) 494-6265
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 3,911 in Georgia → Look up another NPI →

Verify Thomas Bayard O'Barr in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersGeorgia Composite Medical Board
    Search for license 024472    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Georgia license search

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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

26 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Thomas O'Barr26
  2. Specialty average3,176

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Thomas Bayard O'Barr among 3,911 internal medicine physician records in Georgia

Thomas Bayard O'Barr, M.D. is one of 3,911 internal medicine physician records with a practice address in Georgia. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 90% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • Record last updated2018 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 internal medicine physician records list a practice address in Woodstock

They are 17 of the 1,510 NPPES records with a practice address in Woodstock, and 3,911 internal medicine physician records in Georgia.

All 3,911 in Georgia → Every provider in Woodstock → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Maho Akamatsu, MDWoodstock, GA 301891811942394
  2. Osborne D'Souza, MDWoodstock, GA 301891437148657
  3. Timothy Flynn, M.D.Woodstock, GA 301891285626614
  4. Carlos Garcia, MDWoodstock, GA 301891700961257
  5. Wilayneth Gonzalez, MDWoodstock, GA 301891942886510
  6. John Lammert, MDWoodstock, GA 301891699727909
  7. Courtney Maniatis, D.O.Woodstock, GA 301891780881862
  8. Stanley Mogelnicki, MDWoodstock, GA 301891164411385

Common questions

What is Thomas Bayard O'Barr, M.D.'s NPI number?

Thomas Bayard O'Barr, M.D.'s National Provider Identifier (NPI) is 1255334033, issued on May 24, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Bayard O'Barr, M.D. located?

The NPPES record lists a practice address at 1192 Buckhead Xing Ste E, Woodstock, GA, 30189. Phone: (678) 494-4450. Providers update this record themselves, so call before visiting.

How can I verify Thomas Bayard O'Barr, M.D.'s license?

NPPES lists Georgia license number 024472, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas Bayard O'Barr, M.D. prescribe under Medicare Part D?

In 2024, Thomas Bayard O'Barr, M.D. had 26 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.