Yann Dacquay
NPI 1639819634 · Hospitalist Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yann Dacquay is a Hospitalist Physician provider in Thousand Oaks, CA (NPI 1639819634).
Provider details
- NPI number
- 1639819634
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 21898 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
4 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$30 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
- 2022-03-30
- Last updated
- 2025-10-17
- Certified
- 2025-10-17
Frequently asked questions
- What is Yann Dacquay's NPI number?
- Yann Dacquay's National Provider Identifier (NPI) is 1639819634, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yann Dacquay's specialty?
- Yann Dacquay is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Yann Dacquay located?
- Yann Dacquay's practice location on file with NPPES is 215 W Janss Rd, Thousand Oaks, CA 91360-1847.
- What is Yann Dacquay's phone number?
- The practice phone number listed in the NPPES registry for Yann Dacquay is (805) 497-2727.
- Does Yann Dacquay accept Medicare?
- Yann Dacquay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yann Dacquay's NPI active?
- Yes — Yann Dacquay's NPI (1639819634) is active in the NPPES registry as of the last update on 2025-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.