Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

KELSIE MOTHERSEAD
NPI 1508555210
Physician Assistant - Surgical in Newport Beach, CA

Active since May 08, 2023PECOS EnrolledAccepts Medicare Assignment
22 CORPORATE PLAZA DR, NEWPORT BEACH, CA 92660(949) 722-7038(949) 630-4900 Get Directions Write a Review

NPPES record last updated: June 26, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 17, 2024, Oct 24, 2023, May 8, 2023 (3 updates tracked since 2023).

About Kelsie Mothersead NPPES

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

KELSIE MOTHERSEAD (NPI 1508555210) is an individual surgical provider in Newport Beach, California and active in the NPI registry since May 2023. She is enrolled in Medicare PECOS, is affiliated with Northwest Health - Porter, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1508555210
Entity TypeIndividualFemale
Primary Taxonomy363AS0400X
Provider Legal NameKELSIE MOTHERSEAD
Location Address22 CORPORATE PLAZA DRNewport Beach, CA 92660-7985
Mailing Address22 Corporate Plaza DrNewport Beach, CA 92660-7985 · (949) 722-7038
Fax(949) 630-4900
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateMay 8, 2023
Last NPPES UpdateJune 26, 20263 updates tracked since enumeration
NPPES CertifiedJune 26, 2026
NPI 1508555210 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPhysician Assistant · SurgicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AS0400X
Also ListedPhysician AssistantTaxonomy 363A00000X
22 CORPORATE PLAZA DR, Newport Beach, CA 92660

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

Kelsie Mothersead 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 ID547624991
PECOS Enrollment IDI20230918004137
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.

Areas of Expertise CMS Part B claims 8

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 cage or mesh device to spine bone and disc space during spine fusion 22853
Spine fusion is a procedure to join two or more vertebrae. During this process, a cage or mesh device is inserted into the spine bone and disc space. This helps to stabilize the spine, reduce pain, and improve functionality. The device acts as a bridge for new bone to grow on.
32 services28 patients
Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment 63048
This procedure involves the partial removal of a bone in your spine to alleviate pressure on your spinal cord or nerves. It may be performed on multiple spine segments depending on your condition. The aim is to improve mobility and reduce pain or discomfort.
28 services14 patients
Fusion of spine in lower back with partial removal of spine bone and disc 22633
This procedure, called lumbar spinal fusion, involves joining two or more vertebrae in your lower back. It includes a partial removal of a spine bone and disc to alleviate pain and improve stability. The goal is to reduce motion between vertebrae and prevent nerve irritation.
24 services24 patients
Partial removal of bone of single segment of spine in lower back with release of spinal cord and/or nerves during fusion of spine in lower back 63052
This procedure involves the partial removal of a bone segment in your lower back to relieve pressure on your spinal cord or nerves. It's usually done during a spinal fusion in the lower back, which helps to stabilize your spine by joining two or more vertebrae together.
24 services24 patients
Partial removal of bone of additional segment of spine in lower back with release of spinal cord and/or nerves during fusion of spine in lower back 63053
This procedure involves partially removing a bone section in the lower back to relieve pressure on the spinal cord or nerves. It's performed during a spinal fusion, where bones in the lower back are joined to improve stability and reduce pain.
24 services21 patients
Placement of stabilizing device to back of 1 spine bone in neck 22840
This procedure involves positioning a stabilizing device onto a single spinal bone in the neck. The goal is to provide support and prevent movement that could cause discomfort or further injury. It's performed by trained specialists under anesthesia.
21 services21 patients

Hospital Affiliations CMS Care Compare

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

Northwest Health - Porter

Acute Care Hospitals · Valparaiso, IN
3/5 CMS rating
OwnershipProprietary
CMS Certification Number150035
Location85 East Us Hwy 6Valparaiso, IN 46383 · Porter 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.

Specialist/Technologist (Athletic Trainer)
22 CORPORATE PLAZA DR
NEWPORT BEACH, CA 92660
Internal Medicine (Sports Medicine)
22 CORPORATE PLAZA DR
NEWPORT BEACH, CA 92660
Durable Medical Equipment & Medical Supplies
22 CORPORATE PLAZA DR
NEWPORT BEACH, CA 92660
Physician Assistant (Medical)
22 CORPORATE PLAZA DR
NEWPORT BEACH, CA 92660
Physician Assistant
22 CORPORATE PLAZA DR
NEWPORT BEACH, CA 92660
Physician Assistant (Medical)
22 CORPORATE PLAZA DR
NEWPORT BEACH, CA 92660
Orthopaedic Surgery
22 CORPORATE PLAZA DR
NEWPORT BEACH, CA 92660
Orthopaedic Surgery (Sports Medicine)
22 CORPORATE PLAZA DR
NEWPORT BEACH, CA 92660

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 Kelsie Mothersead's NPI number?

The NPI number for Kelsie Mothersead is 1508555210. It was assigned to this individual provider in the NPPES registry on May 8, 2023.

Where is Kelsie Mothersead located?

Kelsie Mothersead practices at 22 Corporate Plaza Dr, Newport Beach, CA 92660. The listed phone number is (949) 722-7038.

What is Kelsie Mothersead's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Surgical, with taxonomy code 363AS0400X.

Is Kelsie Mothersead enrolled in Medicare?

Yes. Kelsie Mothersead 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.

Is Kelsie Mothersead affiliated with any hospitals?

According to CMS data, Kelsie Mothersead is affiliated with Northwest Health - Porter.

When was this NPI record last updated?

The NPPES record for Kelsie Mothersead was last updated on June 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 47 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.