Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Rintaro Hashimoto, MDPHD

Individual provider Hepatology Physician · NPI 1780318501

Dr. Rintaro Hashimoto, MDPHD practises Gastroenterology in Iowa City, Iowa. Qualified in 2018, 8 years ago. Practices with State University of Iowa, a 1,885-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Iowa.

Years since qualifying
8
Licensed in
IA
In the registry since
2022
Specialties on file
2
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Practice location Address checks out

200 Hawkins Dr
Iowa City, IA 52242-1009
Phone: (319) 356-1616
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 105 E 9th St, Coralville, IA 52241-2209 — (319) 356-4901

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence SP-0254 (IA)
Hepatology Physician Taxonomy 207RI0008X · Licence SP-0254 (IA)

Record details

NPI number1780318501
Entity typeIndividual (Type 1)
GenderMale
Credentials MDPHD
Sole proprietorNo
NPI enumeratedJuly 16, 2022
Last updated in NPPESAugust 19, 2022
Certification dateAugust 19, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice State University Of Iowa — 1885 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Upper gastrointestinal (GI) endoscopy for acid reflux 590 times · 99th percentile
Colonoscopy 54 times · 65th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients318
Services billed 560 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $146 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at State University of Iowa

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1885 clinicians in the practice; 12 are shown here.

Other providers in Iowa City