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

Michael Darren Mitchell, MD

Individual provider Cardiovascular Disease Physician · NPI 1548298045

Michael Darren Mitchell, MD is registered under Cardiovascular Disease (Cardiology) in Hillsboro, Oregon. Graduated from Tulane University School of Medicine in 1999, 27 years ago. Practices with Rihner, Gupta, and Grosz Cardiology, PC, a 6-clinician group and accepts Medicare assignment. Licensed in Colorado and Oregon.

Years since qualifying
27
Trained at
Tulane University School of Medicine
Licensed in
CO, OR
In the registry since
2006
Specialties on file
2
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

333 SE 7th Ave Ste 5400
Hillsboro, OR 97123-4165
Phone: (503) 648-0731
Fax: (503) 640-2747
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence MD27897 (OR)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 40989 (CO)

Record details

NPI number1548298045
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2006
Last updated in NPPESJanuary 6, 2022
Certification dateJanuary 6, 2022

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolTULANE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Rihner, Gupta, And Grosz Cardiology, Pc — 6 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 patients242
Services billed 749 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 $391 17 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.

Colleagues at Rihner, Gupta, and Grosz Cardiology, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Hillsboro