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

Mark Louden, MD

Individual provider Emergency Medicine Physician · NPI 1750368577

Mark Louden, MD practises Internal Medicine in Miami, Florida. Graduated from Duke University School of Medicine in 1985, 41 years ago. Practices with St Jude Emergency Medical Group Inc, a 20-clinician group and accepts Medicare assignment. Licensed in Florida and North Carolina.

Years since qualifying
41
Trained at
Duke University School of Medicine
Licensed in
FL, NC
In the registry since
2005
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

1321 NW 14th St
Miami, FL 33125-1673 Not confirmed with CMS for 14 years — call before visiting
Phone: (305) 689-5464
Fax: (305) 689-3994
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence ME109541 (FL)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 9800317 (NC)

Record details

NPI number1750368577
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 22, 2005
Last updated in NPPESSeptember 26, 2012

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolDUKE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1985 (41 years in practice)
Group practice St Jude Emergency Medical Group Inc — 20 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 patients729
Services billed 1,092 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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 $71 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.

  • Kaiser Foundation Hospital - Orange County - Anaheim Hospital · Anaheim, CA
  • Providence St. Jude Medical Center Hospital · Fullerton, CA

Colleagues at St Jude Emergency Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 20 clinicians in the practice; 12 are shown here.

Other providers in Miami