Vivian Ussui, MD
Gastroenterology Physician · Denver, CO
Vivian Ussui, MD is a gastroenterology physician with a practice address in Denver, Colorado, and NPI 1124479837, issued on Jun 23, 2016. Check the license (Colorado DR.0066049, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Vivian Ussui
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- DR.0066049 CO
TRN21927 FL
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Jackson St, Denver, CO 80206
- Phone
- (303) 388-4461
- Enumerated
- Jun 23, 2016
- Record last updated
- May 9, 2025
- Fax
- (303) 398-1211
- Medicare enrollment
- Enrolled (PECOS I20210826000542); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 334 in Colorado → Look up another NPI →
Also registered at 1400 Jackson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rafeul Alam, MDAllergy & Immunology Physician1790730687
- Jon Allison, PACMedical Physician Assistant1609812668
- Vivianne Allsop, MDRheumatology Physician1215499603
- Mark Aloia, MDPsychiatry Physician1295842607
Verify Vivian Ussui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0066049Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average gastroenterology physician in 2024
431 Medicare Part D claims for 113 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Omeprazole151 claims
- Famotidine65 claims
- Pantoprazole Sodium43 claims
- Linzess23 claims
- Dicyclomine Hcl14 claims
- Creon13 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.
Industry payments in 2024: $474.39
5 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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
- Catholic Health Initiatives ColoradoFort Morgan, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vivian Ussui among 334 gastroenterology physician records in Colorado
Vivian Ussui, MD is one of 334 gastroenterology physician records with a practice address in Colorado. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 87% of them.
- NPI issued2016 · 87% of these records are older, 10% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2001 · median 2003 among the 258 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Colorado
There are 334 gastroenterology physician records in Colorado.
All 334 in Colorado → Every provider in Denver → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Arash Babaei, M.D.Denver, CO 802061598716482
- Jeffrey King, M.D.Denver, CO 802061194901942
- Kyley Leroy, DODenver, CO 802061760876668
- Luette Morton, MDDenver, CO 802061861675928
- Pranav Periyalwar, M.D.Denver, CO 802061720218449
- Thomas Reed, MDDenver, CO 802061548230659
- Sarah Safadi, M.D.Denver, CO 802061992117675
- Neil Toribara, MD, PHDDenver, CO 802061144330903
Common questions
What is Vivian Ussui, MD's NPI number?
Vivian Ussui, MD's National Provider Identifier (NPI) is 1124479837, issued on Jun 23, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Vivian Ussui, MD located?
The NPPES record lists a practice address at 1400 Jackson St, Denver, CO, 80206. Phone: (303) 388-4461. Providers update this record themselves, so call before visiting.
How can I verify Vivian Ussui, MD's license?
NPPES lists Colorado license number DR.0066049, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Vivian Ussui, MD prescribe under Medicare Part D?
In 2024, Vivian Ussui, MD had 431 Medicare Part D claims for 113 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
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.