1. Home
  2. Directory
  3. California
  4. Orange
  5. Anesthesiology
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. YESENIA ARELI WESTRUP MD
NPI 1861134801
Anesthesiology in Orange, CA

Active since April 11, 2022PECOS Enrolled
101 THE CITY DR S, ORANGE, CA 92868(714) 456-8888 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 10, 2026, May 28, 2026, Apr 11, 2022 (3 updates tracked since 2022).

About Dr. Yesenia Areli Westrup Md NPPES

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

DR. YESENIA ARELI WESTRUP MD (NPI 1861134801) is an individual anesthesiology provider in Orange, California, licensed in California (A208826) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS and maintains a secondary practice location in Seattle.

NPPES Registry Identity

NPI1861134801
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. YESENIA ARELI WESTRUPCredential: MD
Location Address101 THE CITY DR SOrange, CA 92868-3201
Mailing Address1323 N Spurgeon StSanta Ana, CA 92701-2472 · (323) 336-1071
Phone(714) 456-8888
Sole ProprietorNo
Enumeration DateApril 11, 2022
Last NPPES UpdateSeptember 10, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 10, 2026
✔ NPI 1861134801 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A208826
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.
Also ListedAnesthesiology · Pain MedicineTaxonomy 207LP2900X · License A208826 (CA)
101 THE CITY DR S, Orange, CA 92868
Open in Google Maps ↗

Secondary Practice Location 1

Location 11959 NE Pacific St # 356540Seattle, WA 98195-0001 · Phone (323) 336-1071

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Yesenia Areli Westrup Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Yesenia Westrup reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The University Of
0.3 mi
Anesthesiology
101 THE CITY DR SOUTH
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 420 clinicians in this Medicare group
NPI 1487602546 (714) 456-8068

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

DR. ANKIT BHUPENDRA PATEL D.O.
Radiology (Diagnostic Radiology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-5113
DR. LAURA CATHERINE SKOCZYLAS MD
Obstetrics & Gynecology
101 THE CITY DR S, BUILDING 56, DEPARTMENT OF OB/GYN
ORANGE, CA 92868
Orange County (714) 456-8224
MICHAEL CHENG DO
Internal Medicine (Rheumatology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7110
AESTHETIC AND PLASTIC SURGERY INSTITUTE
Plastic Surgery
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-2986
JOSEPH VILLARREAL M.D.
Emergency Medicine
101 THE CITY DR S, BUILDING 1A, ROOM 1009
ORANGE, CA 92868
Orange County (714) 456-5239
DEMI TRAN
Psychiatry & Neurology (Neurology)
101 THE CITY DR S, CITY TOWER, SUITE 400
ORANGE, CA 92868
Orange County (171) 456-6693
DR. ISABEL CARLTON CLARK M.D.
Surgery (Trauma Surgery)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7890
DYLAN LUKATO
Emergency Medicine
101 THE CITY DR S
ORANGE, CA 92868
Orange County (415) 218-8041

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 Yesenia Westrup's NPI number?

The NPI number for Yesenia Westrup is 1861134801. It was assigned to this individual provider in the NPPES registry on April 11, 2022.

Where is Yesenia Westrup located?

Yesenia Westrup practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-8888.

What is Yesenia Westrup's specialty?

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

Is Yesenia Westrup enrolled in Medicare?

Yes. Yesenia Westrup is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Yesenia Westrup's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yesenia Westrup reassigns Medicare benefits to Regents Of The University Of (Orange, CA). 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 Yesenia Westrup's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Yesenia Westrup was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 days 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.