1. Home
  2. Directory
  3. California
  4. Thousand Oaks
  5. Hospitalist
  6. NPI Profile

YANN DACQUAY
NPI 1639819634
Hospitalist in Thousand Oaks, CA

Active since March 30, 2022PECOS EnrolledAccepts Medicare Assignment
215 W JANSS RD, THOUSAND OAKS, CA 91360(805) 497-2727 Get Directions Write a Review

NPPES record last updated: October 17, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Yann Dacquay NPPES

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

YANN DACQUAY (NPI 1639819634) is an individual hospitalist provider in Thousand Oaks, California, licensed in California (21898) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1639819634
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameYANN DACQUAY
Location Address215 W JANSS RDThousand Oaks, CA 91360-1847
Mailing Address215 W Janss RdThousand Oaks, CA 91360-1847
Phone(805) 497-2727
Sole ProprietorYes
Medical School CMSOtherGraduated 2022
Enumeration DateMarch 30, 2022
Last NPPES UpdateOctober 17, 2025
NPPES CertifiedOctober 17, 2025
✔ NPI 1639819634 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in CA · 21898
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
215 W JANSS RD, Thousand Oaks, CA 91360
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Yann Dacquay 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 ID9436519360
PECOS Enrollment IDI20251013002187
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91360 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
$140.72 typical visit price
range $62.32 – $185.36
Typical copayment $35.18 (range $15.58 – $46.34)
Most-billed visit code 99204
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
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.

LOS ROBLES RADIOLOGIC ASSOCIATES
Radiology (Diagnostic Radiology)
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (054) 972-7278
DR. NUSAYBA MANAL AHMED MD
Student in an Organized Health Care Education/Training Program
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 852-9229
DANIELLE ASHLEY SHERMAN
Physician Assistant
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 497-2727
MARIA DUBOVITSKAYA MD
Student in an Organized Health Care Education/Training Program
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 852-9229
SUKHWINDER SINGH DHILLON
Student in an Organized Health Care Education/Training Program
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 852-9229
ALEEN SISAKIAN MD
Student in an Organized Health Care Education/Training Program
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 852-9229
YASH PATIL DO
Student in an Organized Health Care Education/Training Program
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 852-9229
DR. ERNA M. KWONG M.D.
Anesthesiology
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 497-2727

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Yann Dacquay's NPI number?

The NPI number for Yann Dacquay is 1639819634. It was assigned to this individual provider in the NPPES registry on March 30, 2022.

Where is Yann Dacquay located?

Yann Dacquay practices at 215 W Janss Rd, Thousand Oaks, CA 91360. The listed phone number is (805) 497-2727.

What is Yann Dacquay's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Yann Dacquay enrolled in Medicare?

Yes. Yann Dacquay is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Yann Dacquay was last updated on October 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.