Doctor profile · Federal record

Dr. Robert Knox, M.D.

Gastroenterology Physician · Murfreesboro, TN

  • NPI 1457349425
  • MIPS 92.1 / 100 · 2023
  • 21 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1272 Garrison Dr
Murfreesboro, TN 371292598
(615) 867-8070
fax (615) 867-8073

Credentials & registration

NPPES · NUCC
NPI registered
October 2005 — 21 yrs on file
Profile last updated
June 26, 2020
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Tennessee #20879
Medicaid
TN #3082146

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1457349425. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
908
Distinct HCPCS
10
Medicare allowed
$91,902
HCPCS Description Services Patients Avg allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 153 153 $236
99213 Established patient office or other outpatient visit, 20-29 minutes 146 132 $84
45380 Biopsy of large bowel using a flexible endoscope 106 106 $91
99203 New patient office or other outpatient visit, 30-44 minutes 83 83 $105
36415 Insertion of needle into vein for collection of blood sample 72 63 $8
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 56 56 $95
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 51 46 $8
80053 Blood test, comprehensive group of blood chemicals 47 42 $10
99214 Established patient office or other outpatient visit, 30-39 minutes 37 37 $118
86140 Measurement c-reactive protein for detection of infection or inflammation 24 22 $5

In context: peer comparison

Among 3 peers in this city , average services per provider: 43. This provider delivers 21× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,115
Transactions
144
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 37 $791.67
Takeda Pharmaceuticals U.S.A., Inc. 31 $563.65
Janssen Biotech, Inc. 13 $271.84
Salix Pharmaceuticals, a division of Bausch Health US, LLC 17 $188.68
Gilead Sciences, Inc. 8 $186.20
Lilly USA, LLC 6 $178.19
PFIZER INC. 11 $154.02
Madrigal Pharmaceuticals 2 $122.57
Phathom Pharmaceuticals, Inc. 2 $94.27
Regeneron Healthcare Solutions, Inc. 3 $74.78
Fresenius Kabi USA, LLC 4 $74.57
Celgene Corporation 3 $69.94
Merck Sharp & Dohme LLC 3 $59.15
GENZYME CORPORATION 2 $42.86
AIMMUNE THERAPEUTICS, INC. 2 $37.73

By nature of payment

Food and Beverage
$3,115

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
987
Patients
220
Total drug cost
$115,620
Drug Type Claims Patients Total cost
Omeprazole Generic 357 103 $6,486
Pantoprazole Sodium Generic 130 36 $2,729
Dicyclomine Hcl Generic 54 18 $1,105
Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) Brand 53 14 $1,829
Famotidine Generic 47 16 $1,023
Linzess (Linaclotide) Brand 46 0 $25,164
Ondansetron Odt (Ondansetron) Brand 46 21 $600
Esomeprazole Magnesium Generic 45 12 $6,404
Metoclopramide Hcl Generic 35 0 $232
Creon (Lipase/Protease/Amylase) Brand 32 0 $54,310

Frequently asked questions

Auto-generated from federal data
What is Dr. Robert Knox's medical specialty?
Dr. Robert Knox practices Gastroenterology Physician in Murfreesboro, TN.
Where does Dr. Robert Knox practice?
Dr. Robert Knox practices at 1272 Garrison Dr, Murfreesboro, TN 371292598. Office phone: 6158678070.
What is Dr. Robert Knox's NPI?
Dr. Robert Knox's National Provider Identifier (NPI) is 1457349425, issued by NPPES.
What procedures does Dr. Robert Knox commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Established patient office or other outpatient visit (HCPCS 99213); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.