Grantley Joseph, M.D.
Internal Medicine Physician · Decatur, GA
Grantley Joseph, M.D. is an internal medicine physician with a practice address in Decatur, Georgia, and NPI 1861506016, issued on Aug 17, 2006. Check the license (Georgia 039376, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Grantley Joseph
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 039376 GA
Self-reported in NPPES; status is on the state search - Practice location
- 4153B Flat Shoals Pkwy, Decatur, GA 30034
- Phone
- (404) 585-5049
- Enumerated
- Aug 17, 2006
- Record last updated
- Nov 25, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (404) 591-0292
- Medicaid ID
- 000671019A GA
- Medicare enrollment
- Enrolled (PECOS I20090909000420); accepts Medicare assignment
- Medical or professional school
- Morehouse School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,911 in Georgia → Look up another NPI →
Also registered at 4153B Flat Shoals Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Oliga, M.D.Internal Medicine Physician1013021781
Verify Grantley Joseph in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 039376Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.1 times the Medicare Part D claims of the average internal medicine physician in 2024
12,891 Medicare Part D claims for 938 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 53 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,158 claims
- Amlodipine Besylate1,092 claims
- Metformin Hcl466 claims
- Lisinopril323 claims
- Metoprolol Succinate297 claims
- Rosuvastatin Calcium289 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.
The MIPS final score for 2023 (Medicare payment program): 92.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Emory Specialty Associates, LLCAtlanta, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grantley Joseph among 3,911 internal medicine physician records in Georgia
Grantley Joseph, 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 57% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1989 · median 2005 among the 2,535 with a school on file
- Record last updated2014 · 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).
144 internal medicine physician records list a practice address in Decatur
They are 144 of the 5,079 NPPES records with a practice address in Decatur, and 3,911 internal medicine physician records in Georgia.
All 3,911 in Georgia → Every provider in Decatur → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robelyn Barrameda, MDDecatur, GA 300341912588385
- Rama Gangaiah, MDDecatur, GA 300341528048220
- Ahmad Jingo, MDDecatur, GA 300341467416602
- Dalvin Lane, M.D.Decatur, GA 300341962620401
- John Oliga, M.D.Decatur, GA 300341013021781
- Michele Sewell, MDDecatur, GA 300341649205642
- Reginald Smith, M.D.Decatur, GA 300341497796718
- Mitchel Banks, MDDecatur, GA 300331154880417
Common questions
What is Grantley Joseph, M.D.'s NPI number?
Grantley Joseph, M.D.'s National Provider Identifier (NPI) is 1861506016, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Grantley Joseph, M.D. located?
The NPPES record lists a practice address at 4153B Flat Shoals Pkwy, Decatur, GA, 30034. Phone: (404) 585-5049. Providers update this record themselves, so call before visiting.
How can I verify Grantley Joseph, M.D.'s license?
NPPES lists Georgia license number 039376, 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 Grantley Joseph, M.D. prescribe under Medicare Part D?
In 2024, Grantley Joseph, M.D. had 12,891 Medicare Part D claims for 938 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Grantley Joseph, M.D.'s MIPS final score?
The 2023 MIPS final score is 92.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.