Doctor profile · Federal record

Dr. Louis Garrot, M.D.

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Marietta, GA

  • NPI 1609941335
  • Accepts Medicare
  • MIPS 66.0 / 100 · 2023
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
790 Church St Ne, Suite 335
Marietta, GA 300607282
(770) 590-8311
fax (770) 590-8313
Mailing address
1835 Savoy Dr, Suite 300
Atlanta, GA 303411072

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
August 7, 2024
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Georgia #59157
Medicaid (2)
GA #127339013D · GA #127339013E

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1609941335. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,046
Distinct HCPCS
8
Medicare allowed
$74,199
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 688 254 $66
99214 Established patient office or other outpatient visit, 30-39 minutes 118 76 $98
99212 Established patient office or other outpatient visit, 10-19 minutes 85 71 $36
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 64 31 $79
99204 New patient office or other outpatient visit, 45-59 minutes 29 29 $134
99203 New patient office or other outpatient visit, 30-44 minutes 27 27 $83
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 20 18 $50
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 15 15 $131

In context: peer comparison

Among 7 peers in Marietta Hematology & Oncology Physician, average services per provider: 113. This provider delivers 9.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$5,109
Transactions
43
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Eisai INC. 7 $3,296.73
Bayer Healthcare Pharmaceuticals INC. 3 $927.63
Pfizer INC. 6 $97.23
Novartis Pharmaceuticals Corporation 3 $91.55
AstraZeneca Pharmaceuticals Lp 4 $90.26
Astellas Pharma US INC 2 $59.86
Daiichi Sankyo INC. 3 $56.03
Janssen Biotech, INC. 2 $45.38
Exelixis INC. 2 $43.28
Regeneron Healthcare Solutions, INC. 2 $42.05
Acrotech Biopharma INC. 2 $41.23
Array Biopharma INC 4 $36.16
Takeda Pharmaceuticals U.S.A., INC. 1 $31.48
Gilead Sciences, INC. 1 $29.02
Sobi, INC 1 $28.56

By nature of payment

Consulting Fee
$3,490
Food and Beverage
$1,074
Travel and Lodging
$520
Education
$25

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
923
Patients
272
Total drug cost
$873,645
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 99 26 $89,103
Prednisone Generic 95 29 $533
Gabapentin Generic 90 23 $701
Dexamethasone Generic 88 41 $2,016
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 82 27 $2,372
Orgovyx (Relugolix) Brand 71 11 $209,237
Oxycodone Hcl Generic 68 15 $1,597
Morphine Sulfate ER (Morphine Sulfate) Brand 67 18 $1,595
Abiraterone Acetate Generic 44 0 $130,163
Hydroxyurea Generic 40 0 $2,092

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Louis Garrot's medical specialty?
Dr. Louis Garrot practices Hematology & Oncology Physician in Marietta, GA.
Where does Dr. Louis Garrot practice?
Dr. Louis Garrot practices at 790 Church St Ne, Marietta, GA 300607282. Office phone: 7705908311.
What is Dr. Louis Garrot's NPI?
Dr. Louis Garrot's National Provider Identifier (NPI) is 1609941335, issued by NPPES.
Does Dr. Louis Garrot accept Medicare assignment?
Yes. Dr. Louis Garrot accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Louis Garrot commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99212). Source: CMS Medicare Physician & Other Practitioners file.