NPPES file of Aug 9, 2026

Louis C. Garrot, M.D.

Hematology & Oncology Physician · Marietta, GA

Louis C. Garrot, M.D. is a hematology & oncology physician with a practice address in Marietta, Georgia, and NPI 1609941335, issued on Nov 21, 2006. Check the license (Georgia 59157, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609941335
Name
Louis C. Garrot
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
59157 GA
Self-reported in NPPES; status is on the state search
Practice location
790 Church St NE, Marietta, GA 30060
Phone
(770) 590-8311
Enumerated
Nov 21, 2006
Record last updated
Aug 7, 2024
Fax
(770) 590-8313
Medicaid IDs
127339013D GA
127339013E GA
Medicare enrollment
Enrolled (PECOS I20070711000335); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 790 Church St NE

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Joseph Armistead, MDDiagnostic Radiology Physician1851365654
  2. Kevin Ballard, P.A.Physician Assistant1225317365
  3. Pooja Bardhan, MDHematology & Oncology Physician1962601344
  4. Windy Bernard, PA-CPhysician Assistant1487698957
  5. Linda Blom, MDDiagnostic Radiology Physician1902872013
  6. Kevin Blount, MDDiagnostic Radiology Physician1679795538

Verify Louis C. Garrot in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersGeorgia Composite Medical Board
    Search for license 59157
    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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2.4 times the Medicare Part D claims of the average hematology & oncology physician in 2024

2,139 Medicare Part D claims for 231 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims. 266 claims were for opioids.

  1. Louis Garrot2,139
  2. Specialty average877

Most prescribed

  1. Eliquis137 claims
  2. Prednisone123 claims
  3. Gabapentin107 claims
  4. Orgovyx86 claims
  5. Oxycodone Hcl81 claims
  6. Nubeqa74 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): 68.4 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.

  1. Qualityout of 100 · 30% of the final score70.8
  2. Costout of 100 · 30%40.2
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $5,109.02

52 payments; by number, the most common kind was food and beverage; the largest payer was Eisai Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Louis Garrot$5,109.02
  2. Specialty average$7,481.41

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Nsh Cancer Institute Professional Services G LLCCanton, GA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Hematology & Oncology Physician providers in Georgia

There are 396 hematology & oncology physician records in Georgia.

Other hematology & oncology physician records in Georgia

  1. Abeer AbouyabisMacon, GA1427235613
  2. Bamidele Adesunloye, MDNewnan, GA1598736597
  3. Shubham Adroja, M.D.Augusta, GA1467016519
  4. Simbo Aduloju, M.DDecatur, GA1770769234
  5. Victoria Afshani, MDCovington, GA1871571588
  6. Arvind Aggarwal, M.D.Macon, GA1154330090
  7. Shahid Ahmed, MBBSAtlanta, GA1841555083
  8. Ayman Al-Hakim, MDGriffin, GA1447313085
  9. Sami Ali, M.D.Snellville, GA1821382250
  10. Aaron Alizadeh, M.D.Decatur, GA1063412567

Common questions

What is Louis C. Garrot, M.D.'s NPI number?

Louis C. Garrot, M.D.'s National Provider Identifier (NPI) is 1609941335, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Louis C. Garrot, M.D. located?

The NPPES record lists a practice address at 790 Church St NE, Marietta, GA, 30060. Phone: (770) 590-8311. Providers update this record themselves, so call before visiting.

How can I verify Louis C. Garrot, M.D.'s license?

NPPES lists Georgia license number 59157, 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 Louis C. Garrot, M.D. prescribe under Medicare Part D?

In 2024, Louis C. Garrot, M.D. had 2,139 Medicare Part D claims for 231 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Louis C. Garrot, M.D.'s MIPS final score?

The 2023 MIPS final score is 68.4 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.