Doctor profile · Federal record

Dr. Mari Ikeguchi, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Honolulu, HI

  • NPI 1962589218
  • Accepts Medicare
  • MIPS 86.2 / 100 · 2023
  • 27 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
888 S King St
Honolulu, HI 968133009
(808) 522-4000
Mailing address
1946 Young St, Suite 360
Honolulu, HI 968262150

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Hawaii #MD-13912

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1962589218. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
422
Distinct HCPCS
10
Medicare allowed
$58,880
HCPCS Description Services Patients Avg allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 104 99 $104
45380 Biopsy of large bowel using a flexible endoscope 63 63 $162
99213 Established patient office or other outpatient visit, 20-29 minutes 56 50 $68
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 41 41 $253
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 39 39 $182
99204 New patient office or other outpatient visit, 45-59 minutes 27 27 $132
G0105 Colorectal cancer screening; colonoscopy on individual at high risk 25 24 $174
99214 Established patient office or other outpatient visit, 30-39 minutes 20 19 $100
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 16 16 $116
45378 Diagnostic exam of large bowel using a flexible endoscope 16 16 $174

In context: peer comparison

Among 15 peers in Honolulu Gastroenterology Physician, average services per provider: 57. This provider delivers 7.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
484
Patients
269
Total drug cost
$107,260
Drug Type Claims Patients Total cost
Omeprazole Generic 116 40 $1,553
Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 99 99 $1,698
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 89 87 $2,114
Pantoprazole Sodium Generic 74 31 $1,189
Famotidine Generic 17 0 $398
Sulfasalazine Generic 15 0 $473
Mesalamine Generic 14 0 $5,369
Balsalazide Disodium Generic 13 0 $5,146
Humira(Cf) Pen (Adalimumab) Brand 13 0 $88,564
Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 12 12 $270

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mari Ikeguchi's medical specialty?
Dr. Mari Ikeguchi practices Gastroenterology Physician in Honolulu, HI.
Where does Dr. Mari Ikeguchi practice?
Dr. Mari Ikeguchi practices at 888 S King St, Honolulu, HI 968133009. Office phone: 8085224000.
What is Dr. Mari Ikeguchi's NPI?
Dr. Mari Ikeguchi's National Provider Identifier (NPI) is 1962589218, issued by NPPES.
Does Dr. Mari Ikeguchi accept Medicare assignment?
Yes. Dr. Mari Ikeguchi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mari Ikeguchi commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.