John Benjamin Marshall
Internal Medicine Physician · Atlanta, GA
John Benjamin Marshall is an internal medicine physician with a practice address in Atlanta, Georgia, and NPI 1568701498, issued on Feb 13, 2013. Check the license (Georgia 79823, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Benjamin Marshall
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 79823 GA
Self-reported in NPPES; status is on the state search - Practice location
- 6135 Barfield RD Ste 200, Atlanta, GA 30328
- Phone
- (404) 256-8500
- Enumerated
- Feb 13, 2013
- Record last updated
- May 21, 2025
- Fax
- (404) 256-8506
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,911 in Georgia → Look up another NPI →
Also registered at 6135 Barfield RD Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Haritha Challa, M.DInternal Medicine Physician1023384849
- Rachel Delfavero, MDInternal Medicine Physician1992982003
- Neeja Desai, M.D.Neurology Physician1245650068
Verify John Benjamin Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 79823Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average internal medicine physician in 2024
6,467 Medicare Part D claims for 832 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 147 claims were for opioids.
Most prescribed
- Atorvastatin Calcium667 claims
- Amlodipine Besylate294 claims
- Levothyroxine Sodium251 claims
- Rosuvastatin Calcium223 claims
- Losartan Potassium192 claims
- Pantoprazole Sodium183 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 practice group's MIPS final score for 2023 (Medicare payment program): 72.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $106.09
6 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John Benjamin Marshall among 3,911 internal medicine physician records in Georgia
John Benjamin Marshall 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 2013, is newer than 64% of them.
- NPI issued2013 · 64% of these records are older, 34% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2025 · 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
- Caroline Abruzese, MDAtlanta, GA 303281255328720
- Sandy Carter, M.D.Atlanta, GA 303281932194115
- Charles Cohn, MDSandy Springs, GA 303281538168232
- Mark Friedman, MDAtlanta, GA 303281467404848
- William Gower, M.D.Atlanta, GA 303281053306399
- Shangbo Guan, M.D.Atlanta, GA 303281811965957
- Peter Gutschenritter, M.D.Atlanta, GA 303281689669145
- Steven He, M.D.Atlanta, GA 303281154360477
Common questions
What is John Benjamin Marshall's NPI number?
John Benjamin Marshall's National Provider Identifier (NPI) is 1568701498, issued on Feb 13, 2013. An NPI identifies a provider in billing; it is not a license.
Where is John Benjamin Marshall located?
The NPPES record lists a practice address at 6135 Barfield RD Ste 200, Atlanta, GA, 30328. Phone: (404) 256-8500. Providers update this record themselves, so call before visiting.
How can I verify John Benjamin Marshall's license?
NPPES lists Georgia license number 79823, 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 John Benjamin Marshall prescribe under Medicare Part D?
In 2024, John Benjamin Marshall had 6,467 Medicare Part D claims for 832 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is John Benjamin Marshall's MIPS final score?
The 2023 MIPS final score is 72.3 of 100, reported for the practice group. 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.