Ryan Nagumo Graddy, M.D.
Internal Medicine Physician · Atlanta, GA
Ryan Nagumo Graddy, M.D. is an internal medicine physician with a practice address in Atlanta, Georgia, and NPI 1164788675, issued on Apr 9, 2012. Check the license (Georgia 82590, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ryan Nagumo Graddy
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 82590 GA
D79188 MD
Self-reported in NPPES; status is on the state search - Practice location
- 2140 Peachtree RD NW Ste 232, Atlanta, GA 30309
- Phone
- (404) 231-4431
- Enumerated
- Apr 9, 2012
- Record last updated
- May 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (404) 231-5677
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,911 in Georgia → Look up another NPI →
Also registered at 2140 Peachtree RD NW Ste 232
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ryan Nagumo Graddy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 82590Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,277 Medicare Part D claims for 121 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 36 claims were for opioids.
Most prescribed
- Atorvastatin Calcium96 claims
- Amlodipine Besylate64 claims
- Levothyroxine Sodium58 claims
- Gabapentin53 claims
- Ozempic42 claims
- Metformin Hcl39 claims
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.
Ryan Nagumo Graddy among 3,911 internal medicine physician records in Georgia
Ryan Nagumo Graddy, 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 2012, is newer than 62% of them.
- NPI issued2012 · 62% of these records are older, 36% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2020 · 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).
870 internal medicine physician records list a practice address in Atlanta
They are 870 of the 31,476 NPPES records with a practice address in Atlanta, and 3,911 internal medicine physician records in Georgia.
All 3,911 in Georgia → Every provider in Atlanta → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Mary Dampier, MDAtlanta, GA 303091841262896
- Paul Donnan, MDAtlanta, GA 303091255327680
- Chandra Ghosh, MDAtlanta, GA 303091578515060
- Andy Jaffal, MDAtlanta, GA 303091316927262
- Scott Kleber, MDAtlanta, GA 303091730131194
- Frieda Millhouse-Jones, MDAtlanta, GA 303091144272568
Common questions
What is Ryan Nagumo Graddy, M.D.'s NPI number?
Ryan Nagumo Graddy, M.D.'s National Provider Identifier (NPI) is 1164788675, issued on Apr 9, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Nagumo Graddy, M.D. located?
The NPPES record lists a practice address at 2140 Peachtree RD NW Ste 232, Atlanta, GA, 30309. Phone: (404) 231-4431. Providers update this record themselves, so call before visiting.
How can I verify Ryan Nagumo Graddy, M.D.'s license?
NPPES lists Georgia license number 82590, 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 Ryan Nagumo Graddy, M.D. prescribe under Medicare Part D?
In 2024, Ryan Nagumo Graddy, M.D. had 1,277 Medicare Part D claims for 121 beneficiaries; 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.