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

Oscar Luis Llanos Ulloa, MD

Individual provider Pulmonary Disease Physician · NPI 1235544313

Oscar Luis Llanos Ulloa, MD is registered under Critical Care (Intensivists) in Columbia, Missouri. Qualified in 2007, 19 years ago. Practices with The Curators of the University of Missouri, a 1,093-clinician group and accepts Medicare assignment. Licensed in Missouri and North Dakota.

Years since qualifying
19
Licensed in
MO, ND
In the registry since
2014
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

1 Hospital Dr
Columbia, MO 65212-0001
Phone: (573) 882-9072
Fax: (573) 884-4892
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 2021035036 (MO)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 16339 (ND)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 2021035036 (MO)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1235544313
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 26, 2014
Last updated in NPPESApril 18, 2023
Certification dateApril 18, 2023

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Also practisesPULMONARY DISEASE
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice The Curators Of The University Of Missouri — 1093 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 patients253
Services billed 741 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.

Food and Beverage $380 4 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 The Curators of the University of Missouri

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1093 clinicians in the practice; 12 are shown here.

Other providers in Columbia