Kathleen O'Hara Johnson, M.D.
Internal Medicine Physician · Riverdale, GA
Kathleen O'Hara Johnson, M.D. is an internal medicine physician with a practice address in Riverdale, Georgia, and NPI 1386922441, issued on Jul 23, 2011. Check the license (Georgia 40426, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kathleen O'Hara Johnson
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 40426 GA
Self-reported in NPPES; status is on the state search - Practice location
- 6330 Riverdale RD, Riverdale, GA 30274
- Phone
- (770) 994-7400
- Enumerated
- Jul 23, 2011
- Record last updated
- Jul 23, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,911 in Georgia → Look up another NPI →
Verify Kathleen O'Hara Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 40426Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
18 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Kathleen O'Hara Johnson among 3,911 internal medicine physician records in Georgia
Kathleen O'Hara Johnson, 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 2011, is newer than 60% of them.
- NPI issued2011 · 60% of these records are older, 38% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2011 · 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).
19 internal medicine physician records list a practice address in Riverdale
They are 19 of the 592 NPPES records with a practice address in Riverdale, and 3,911 internal medicine physician records in Georgia.
All 3,911 in Georgia → Every provider in Riverdale → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Geetha Bommana, MDRiverdale, GA 302741811475114
- Cristian Carbuccia MendezRiverdale, GA 302741790167799
- Eloy Diaz, M.D.Riverdale, GA 302741063461051
- Michael Dicristina, M.D.Riverdale, GA 302741144226135
- Anthonia Ekpenike, M.B.B.SRiverdale, GA 302741659577484
- Paul Harvey, MDRiverdale, GA 302741053410357
- Ifeoma Okafor, M.D.Riverdale, GA 302741033226832
- E'Lexus OkaforRiverdale, GA 302741598384224
Common questions
What is Kathleen O'Hara Johnson, M.D.'s NPI number?
Kathleen O'Hara Johnson, M.D.'s National Provider Identifier (NPI) is 1386922441, issued on Jul 23, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen O'Hara Johnson, M.D. located?
The NPPES record lists a practice address at 6330 Riverdale RD, Riverdale, GA, 30274. Phone: (770) 994-7400. Providers update this record themselves, so call before visiting.
How can I verify Kathleen O'Hara Johnson, M.D.'s license?
NPPES lists Georgia license number 40426, 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 Kathleen O'Hara Johnson, M.D. prescribe under Medicare Part D?
In 2024, Kathleen O'Hara Johnson, M.D. had 18 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.
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.