VIVIAN USSUI MD
NPI 1124479837
Internal Medicine - Gastroenterology in Denver, CO

Q: What is Vivian Ussui's NPI number?

The NPI number for Vivian Ussui is 1124479837. It was assigned to this individual provider in the NPPES registry on June 23, 2016.

Q: What is Vivian Ussui's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Vivian Ussui was last updated on May 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 23, 2016PECOS EnrolledAccepts Medicare Assignment

1400 JACKSON ST, DENVER, CO 80206(303) 388-4461(303) 398-1211 Get Directions Write a Review

NPPES record last updated: May 9, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 9, 2025, Jun 23, 2016 (2 updates tracked since 2016).

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About Vivian Ussui Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

VIVIAN USSUI MD (NPI 1124479837) is an individual gastroenterology provider in Denver, Colorado, licensed in Colorado (DR.0066049) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2001).

NPPES Registry Identity

NPI1124479837

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameVIVIAN USSUICredential: MD

Location Address1400 JACKSON STDenver, CO 80206-2761

Mailing Address1400 Jackson StDenver, CO 80206-2761 · (303) 388-4461 · Fax (303) 398-1211

Phone(303) 388-4461

Fax(303) 398-1211

Sole ProprietorYes

Medical School CMSOtherGraduated 2001

Enumeration DateJune 23, 2016

Last NPPES UpdateMay 9, 20252 updates tracked since enumeration

NPPES CertifiedMay 9, 2025

✔ NPI 1124479837 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CO · DR.0066049

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License TRN21927 (FL)

1400 JACKSON ST, Denver, CO 80206

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Secondary Practice Locations 2

Location 14300 Alton RdMiami, FL 33140-2948 · Phone (305) 674-2053

Location 22030 Mountain View Ave Ste 200Longmont, CO 80501-3180 · Phone (720) 652-8650 · Fax (720) 652-8655

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Vivian Ussui Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8224387287

PECOS Enrollment IDI20210826000542

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Vivian Ussui reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Catholic Health Initiatives Colorado

2.9 mi

Family Medicine

8101 E LOWRY BLVD STE 255
Denver, CO 80230

Reassigned Medicare billing, Colorado enrollment
1,193 clinicians in this Medicare group

NPI 1518711290 (720) 321-3581

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

87 services84 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

59 services50 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

42 services42 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

37 services29 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

33 services30 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

26 services26 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80206 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$132.55 typical visit price

range $58.06 – $174.82

Typical copayment $33.13 (range $14.51 – $43.70)

Most-billed visit code 99204

Established Patient

$102.03 typical visit price

range $18.88 – $142.79

Typical copayment $25.50 (range $4.72 – $35.69)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JESSICA GALANT-SWAFFORD

Allergy & Immunology