Vivian Chao, MD
NPI 1093845935 · Internal Medicine Physician · Wheat Ridge, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vivian Chao, MD is a Internal Medicine Physician provider in Wheat Ridge, CO (NPI 1093845935).
Provider details
- NPI number
- 1093845935
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 43821 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 724 | 205 |
| Levothyroxine Sodium | 598 | 154 |
| Rosuvastatin Calcium | 493 | 143 |
| Lisinopril | 466 | 139 |
| Alendronate Sodium | 381 | 129 |
| Simvastatin | 356 | 100 |
| Losartan Potassium | 323 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-07
- Last updated
- 2021-04-19
- Certified
- 2021-04-19
Frequently asked questions
- What is Vivian Chao's NPI number?
- Vivian Chao's National Provider Identifier (NPI) is 1093845935, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivian Chao's specialty?
- Vivian Chao is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Vivian Chao located?
- Vivian Chao's practice location on file with NPPES is 4803 Ward Rd, Wheat Ridge, CO 80033-1902.
- What is Vivian Chao's phone number?
- The practice phone number listed in the NPPES registry for Vivian Chao is (303) 338-4545.
- Does Vivian Chao accept Medicare?
- Vivian Chao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vivian Chao's NPI active?
- Yes — Vivian Chao's NPI (1093845935) is active in the NPPES registry as of the last update on 2021-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.