Doctor profile · Federal record
Dr. Rintaro Hashimoto, MD PHD
Gastroenterology Physician (CMS: Gastroenterology) · Hepatology Physician · Iowa City, IA
- NPI 1780318501
- Accepts Medicare
- 8 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
200 Hawkins Dr
Iowa City, IA 522421009
(319) 356-1616 - Additional location
-
105 E 9Th St
Coralville, IA 522412209
(319) 356-4901
fax (319) 384-8559
Credentials & registration
- NPI registered
- July 2022 — 4 yrs on file
- Profile last updated
- August 19, 2022
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Iowa #SP-0254
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1780318501. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
337
Distinct HCPCS
10
Medicare allowed
$36,153
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 57 | 57 | $210 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 48 | 47 | $91 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 42 | 41 | $5 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 35 | 33 | $97 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 25 | 24 | $91 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 22 | 22 | $121 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 22 | 22 | $5 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 21 | 21 | $127 | |
91299 |
Other diagnostic procedure for gastrointestine | 18 | 18 | $114 | |
91120 |
Test for tone and sensation of rectum and anus | 13 | 13 | $42 |
In context: peer comparison
Among 14 peers in Iowa City Gastroenterology Physician, average services per provider: 36. This provider delivers 9.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
122
Patients
22
Total drug cost
$30,159
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 33 | 11 | $432 |
| Linzess (Linaclotide) | Brand | 17 | 0 | $9,508 |
| Famotidine | Generic | 15 | 0 | $27 |
| Colestipol Hcl | Generic | 12 | 0 | $669 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 12 | 11 | $290 |
| Lubiprostone | Generic | 11 | 0 | $2,481 |
| Ondansetron Odt (Ondansetron) | Brand | 11 | 0 | $134 |
| Viberzi (Eluxadoline) | Brand | 11 | 0 | $16,618 |
Hospital affiliations
Frequently asked questions
What is Dr. Rintaro Hashimoto's medical specialty?
Dr. Rintaro Hashimoto practices Gastroenterology Physician in Iowa City, IA.
Where does Dr. Rintaro Hashimoto practice?
Dr. Rintaro Hashimoto practices at 200 Hawkins Dr, Iowa City, IA 522421009. Office phone: 3193561616.
What is Dr. Rintaro Hashimoto's NPI?
Dr. Rintaro Hashimoto's National Provider Identifier (NPI) is 1780318501, issued by NPPES.
Does Dr. Rintaro Hashimoto accept Medicare assignment?
Yes. Dr. Rintaro Hashimoto accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Rintaro Hashimoto commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500). Source: CMS Medicare Physician & Other Practitioners file.