Kari Vu, MD
NPI 1881045441 · Internal Medicine Physician · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kari Vu, MD is a Internal Medicine Physician provider in Fountain Valley, CA (NPI 1881045441).
Provider details
- NPI number
- 1881045441
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A165273 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,812 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 844 | $122 |
| Critical Care, First 30-74 Minutes99291 | 280 | $216 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 266 | $119 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 235 | $178 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 113 | $81 |
| Prolonged Hospital Inpatient Or Observation Care Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By Th |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 35 | 31 |
| Furosemide | 31 | 25 |
| Fluticasone Propionate | 24 | 22 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 24 | 24 |
| Apixabanbrand: Eliquis | 23 | 15 |
| Atorvastatin Calcium | 22 | 18 |
| Levofloxacin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$149 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-06-24
- Last updated
- 2026-06-06
- Certified
- 2026-06-06
Frequently asked questions
- What is Kari Vu's NPI number?
- Kari Vu's National Provider Identifier (NPI) is 1881045441, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kari Vu's specialty?
- Kari Vu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kari Vu located?
- Kari Vu's practice location on file with NPPES is 17100 Euclid St, Fountain Valley, CA 92708-4004.
- What is Kari Vu's phone number?
- The practice phone number listed in the NPPES registry for Kari Vu is (760) 835-4140.
- Does Kari Vu accept Medicare?
- Kari Vu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kari Vu's NPI active?
- Yes — Kari Vu's NPI (1881045441) is active in the NPPES registry as of the last update on 2026-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.