Doctor profile · Federal record

Dr. Nikhil Thiruvengadam

Gastroenterology Physician (CMS: Gastroenterology) · Loma Linda, CA

  • NPI 1972923431
  • Accepts Medicare
  • MIPS 76.4 / 100 · 2023
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
11234 Anderson St # Mc1516
Loma Linda, CA 923542804
(909) 558-4499
fax (909) 558-0428
Mailing address
5400 Avenida del Tren
Yorba Linda, CA 928874900

Credentials & registration

NPPES · NUCC
NPI registered
April 2014 — 12 yrs on file
Profile last updated
January 7, 2022
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
California #A147956

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972923431. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
361
Distinct HCPCS
10
Medicare allowed
$58,790
HCPCS Description Services Patients Avg allowed
74328 Review by radiologist of image from tube placement into bile duct using an endoscope 55 38 $23
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 49 45 $176
43274 Insertion of stent into pancreatic or bile duct using a flexible endoscope 43 28 $390
99214 Established patient office or other outpatient visit, 30-39 minutes 38 29 $130
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 35 32 $83
43264 Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 32 26 $72
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 22 22 $84
43242 Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 21 20 $209
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 19 17 $121
43276 Replacement of stent in pancreatic or bile duct using a flexible endoscope 14 11 $438

In context: peer comparison

Among 9 peers in Loma Linda Gastroenterology Physician, average services per provider: 54. This provider delivers 6.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$364
Transactions
11
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 9 $300.23
RedHill Biopharma INC. 1 $39.67
Abbvie INC. 1 $23.82

By nature of payment

Food and Beverage
$364

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
179
Patients
33
Total drug cost
$110,024
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 34 15 $1,373
Omeprazole Generic 31 0 $547
Linzess (Linaclotide) Brand 24 0 $21,474
Dicyclomine Hcl Generic 18 0 $488
Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 18 18 $334
Sucralfate Generic 15 0 $2,134
Cholestyramine (Cholestyramine (With Sugar)) Brand 14 0 $646
Dexlansoprazole Dr (Dexlansoprazole) Brand 14 0 $8,866
Humira Pen (Adalimumab) Brand 11 0 $74,161

Frequently asked questions

Auto-generated from federal data
What is Dr. Nikhil Thiruvengadam's medical specialty?
Dr. Nikhil Thiruvengadam practices Gastroenterology Physician in Loma Linda, CA.
Where does Dr. Nikhil Thiruvengadam practice?
Dr. Nikhil Thiruvengadam practices at 11234 Anderson St # Mc1516, Loma Linda, CA 923542804. Office phone: 9095584499.
What is Dr. Nikhil Thiruvengadam's NPI?
Dr. Nikhil Thiruvengadam's National Provider Identifier (NPI) is 1972923431, issued by NPPES.
Does Dr. Nikhil Thiruvengadam accept Medicare assignment?
Yes. Dr. Nikhil Thiruvengadam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nikhil Thiruvengadam commonly perform?
Top Medicare-reported procedures in 2023: Review by radiologist of image from tube placement into bile duct using an endoscope (HCPCS 74328); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Insertion of stent into pancreatic or bile duct using a flexible endoscope (HCPCS 43274). Source: CMS Medicare Physician & Other Practitioners file.