Oscar Luis Llanos Ulloa, M.D.
Critical Care Medicine (Internal Medicine) Physician · Columbia, MO
Oscar Luis Llanos Ulloa, M.D. is a critical care medicine (internal medicine) physician with a practice address in Columbia, Missouri, and NPI 1235544313, issued on Jun 26, 2014. Check the license (Missouri 2021035036, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Oscar Luis Llanos Ulloa
- Credential
- M.D.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License numbers
- 2021035036 MO
16339 ND
Self-reported in NPPES; status is on the state search - Practice location
- 1 Hospital Dr, Columbia, MO 65212
- Phone
- (573) 882-9072
- Enumerated
- Jun 26, 2014
- Record last updated
- Apr 18, 2023
- Fax
- (573) 884-4892
- Medicare enrollment
- Enrolled (PECOS I20220105001275); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 178 in Missouri → Look up another NPI →
Also registered at 1 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Oscar Luis Llanos Ulloa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2021035036Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
242 Medicare Part D claims for 55 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.
Most prescribed
- Albuterol Sulfate Hfa36 claims
- Prednisone29 claims
- Trelegy Ellipta25 claims
- Mycophenolate Mofetil22 claims
- Fluticasone Propionate20 claims
- Symbicort12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $206.34
5 payments; by number, the most common kind was food and beverage; the largest payer was Actelion Pharmaceuticals US, Inc. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- The Curators OF The University OF MissouriColumbia, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Oscar Luis Llanos Ulloa among 178 critical care medicine (internal medicine) physician records in Missouri
Oscar Luis Llanos Ulloa, M.D. is one of 178 critical care medicine (internal medicine) physician records with a practice address in Missouri. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 22% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2007 · median 2005 among the 144 with a school on file
- Record last updated2023 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Missouri
There are 178 critical care medicine (internal medicine) physician records in Missouri.
All 178 in Missouri → Every provider in Columbia → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Jonathan Ang, M.D.Columbia, MO 652121780956862
- Dennis Chairman, M.D.Columbia, MO 652121043486764
- Jonathan Collins, MDColumbia, MO 652121659473510
- Hunter Hofmann, M.D.Columbia, MO 652121497707996
- Zachary Holliday, M.D.Columbia, MO 652121306108790
- Jeremy Johnson, D.O.Columbia, MO 652121881618155
- Satish Kalanjeri Balasubramanian, MDColumbia, MO 652121942459433
- James Kessel, MDColumbia, MO 652121174560809
Common questions
What is Oscar Luis Llanos Ulloa, M.D.'s NPI number?
Oscar Luis Llanos Ulloa, M.D.'s National Provider Identifier (NPI) is 1235544313, issued on Jun 26, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Oscar Luis Llanos Ulloa, M.D. located?
The NPPES record lists a practice address at 1 Hospital Dr, Columbia, MO, 65212. Phone: (573) 882-9072. Providers update this record themselves, so call before visiting.
How can I verify Oscar Luis Llanos Ulloa, M.D.'s license?
NPPES lists Missouri license number 2021035036, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Oscar Luis Llanos Ulloa, M.D. prescribe under Medicare Part D?
In 2024, Oscar Luis Llanos Ulloa, M.D. had 242 Medicare Part D claims for 55 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.
What is Oscar Luis Llanos Ulloa, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.