Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Benjamin R Griffin, MD

Individual provider Internal Medicine Physician · NPI 1568726529

Dr. Benjamin R Griffin, MD practises Nephrology in Iowa City, Iowa. Graduated from University of Miami, Lm Miller School of Medicine in 2012, 14 years ago. Practices with State University of Iowa, a 1,885-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Colorado, Iowa and Minnesota.

Years since qualifying
14
Trained at
University of Miami, Lm Miller School of Medicine
Licensed in
CO, IA, MN
In the registry since
2012
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

200 Hawkins Dr
Iowa City, IA 52242
Phone: (319) 384-8197
Fax: (319) 356-2999
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1375 E 19th Ave, Denver, CO 80218-1114 — (303) 338-4545
  • 200 1st St Sw, Rochester, MN 55905-0001 — (507) 284-2511

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence MD-46392 (IA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 56561 (MN)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD-46392 (IA)
Hospitalist Physician Taxonomy 208M00000X · Licence DR.0058309 (CO)

Record details

NPI number1568726529
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 25, 2012
Last updated in NPPESJuly 15, 2019

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MIAMI, LM MILLER SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice State University Of Iowa — 1885 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients198
Services billed 623 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Consulting Fee $6,050 1 payment

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.

  • University Of Iowa Hospital & Clinics Hospital · Iowa City, IA · listed as University of Iowa Hospital and Clinics
  • University Of Iowa Health Care Medical Center Down Hospital · Iowa City, IA

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