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DR. WEN-HUI OU MD
NPI 1407976251
Anesthesiology in Valhalla, NY

Active since March 29, 2007PECOS EnrolledAccepts Medicare Assignment
100 WOODS RD, VALHALLA, NY 10595(914) 493-7000(914) 493-5827 Get Directions Write a Review

NPPES record last updated: February 5, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Wen-hui Ou Md NPPES

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

DR. WEN-HUI OU MD (NPI 1407976251) is an individual anesthesiology provider in Valhalla, New York, licensed in New York (239491) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS, is affiliated with Healthalliance Hospital Marys Avenue Campus, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1407976251
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. WEN-HUI OUCredential: MD
Location Address100 WOODS RDValhalla, NY 10595-1530
Mailing Address19 Bradhurst AveHawthorne, NY 10532-2140 · (914) 909-9018 · Fax (914) 909-9028
Phone(914) 493-7000
Fax(914) 493-5827
Sole ProprietorNo
Medical School CMSOtherGraduated 1993
Enumeration DateMarch 29, 2007
Last NPPES UpdateFebruary 5, 2021
NPPES CertifiedFebruary 5, 2021
✔ NPI 1407976251 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in NY · 239491
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
100 WOODS RD, Valhalla, NY 10595
Open in Google Maps ↗

Secondary Practice Locations 3

Location 142084 State Highway 28Margaretville, NY 12455-2820 · Phone (845) 338-2500 · Fax (845) 331-2530
Location 2396 BroadwayKingston, NY 12401-4626 · Phone (845) 331-3131 · Fax (845) 331-2530
Location 3105 Marys AveKingston, NY 12401-5829 · Phone (845) 586-2631 · Fax (845) 586-1638

Other Identifiers 2

Other239491NY · Lincence
Medicaid02907353NY

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

Dr. Wen-hui Ou 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 ID9133217334
PECOS Enrollment IDI20071126000260
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 Wen-hui Ou reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Westchester Medical Center Advanced Physician Services PC
Same address
Anesthesiology
100 WOODS RD, TAYLOR PAVILION - ROOM M229
Valhalla, NY 10595
  • Reassigned Medicare billing, New York enrollment
  • 1,663 clinicians in this Medicare group
NPI 1740687458 (914) 493-2844

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

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.

Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
12 services12 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Healthalliance Hospital Marys Avenue Campus

Acute Care Hospitals · Kingston, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number330224
Location105 Mary's AvenueKingston, NY 12401 · Ulster County
Emergency services Birthing friendly

Westchester Medical Center

Acute Care Hospitals · Valhalla, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number330234
Location100 Woods RdValhalla, NY 10595 · Westchester County
Emergency services Birthing friendly

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.

MRS. LISA ANN SAUER N.P.
Nurse Practitioner (Neonatal, Critical Care)
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
KAREN FRANCOIS MD
Anesthesiology
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
KIMBERLY WILSON R.D.
Dietitian, Registered
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7664
RADHIKA VOLETI M.D
Internal Medicine
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
FAREENA NAWAZ MD
Internal Medicine
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
AUSTIN B CARPENTER
Student in an Organized Health Care Education/Training Program
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-8795
AMRO AGLAN MD
Student in an Organized Health Care Education/Training Program
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-7000
HAO WANG MD, PHD
Student in an Organized Health Care Education/Training Program
100 WOODS RD
VALHALLA, NY 10595
Westchester County (914) 493-6613

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 Wen-hui Ou's NPI number?

The NPI number for Wen-hui Ou is 1407976251. It was assigned to this individual provider in the NPPES registry on March 29, 2007.

Where is Wen-hui Ou located?

Wen-hui Ou practices at 100 Woods Rd, Valhalla, NY 10595. The listed phone number is (914) 493-7000.

What is Wen-hui Ou's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Wen-hui Ou enrolled in Medicare?

Yes. Wen-hui Ou 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.

Which organization bills Medicare for Wen-hui Ou's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Wen-hui Ou reassigns Medicare benefits to Westchester Medical Center Advanced Physician Services PC (Valhalla, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Wen-hui Ou's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Wen-hui Ou affiliated with any hospitals?

According to CMS data, Wen-hui Ou is affiliated with Healthalliance Hospital Marys Avenue Campus and Westchester Medical Center.

When was this NPI record last updated?

The NPPES record for Wen-hui Ou was last updated on February 5, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.