1. Home
  2. Directory
  3. California
  4. Palo Alto
  5. Nurse Practitioner
  6. NPI Profile

ELLA S THOMPSON NP
NPI 1508531856
Nurse Practitioner in Palo Alto, CA

Active since August 10, 2021PECOS Enrolled
725 WELCH RD, PALO ALTO, CA 94304(650) 497-8000 Get Directions Write a Review

NPPES record last updated: March 28, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 28, 2025, Dec 17, 2021, Nov 15, 2021 and 1 more (4 updates tracked since 2021).

About Ella S Thompson Np NPPES

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

ELLA S THOMPSON NP (NPI 1508531856) is an individual nurse practitioner in Palo Alto, California, licensed in California (95029392) and active in the NPI registry since August 2021. She is enrolled in Medicare PECOS and maintains a secondary practice location in Salt Lake City.

NPPES Registry Identity

NPI1508531856
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameELLA S THOMPSONCredential: NP
Location Address725 WELCH RDPalo Alto, CA 94304-1601
Mailing Address725 Welch RdPalo Alto, CA 94304-1601 · (650) 497-8000
Phone(650) 497-8000
Sole ProprietorNo
Enumeration DateAugust 10, 2021
Last NPPES UpdateMarch 28, 20254 updates tracked since enumeration
NPPES CertifiedMarch 28, 2025
✔ NPI 1508531856 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · 95029392
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedPediatrics · Pediatric Infectious DiseasesTaxonomy 2080P0208X · License 12113187-4405 (UT)
Also ListedNurse Practitioner · PediatricsTaxonomy 363LP0200X · License 12113187-4405 (UT)
725 WELCH RD, Palo Alto, CA 94304
Open in Google Maps ↗

Secondary Practice Location 1

Location 1295 S Chipeta WaySalt Lake City, UT 84108-1287 · Phone (801) 213-7610

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ella S Thompson Np 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 Ella Thompson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Utah Pediatric Services
590 mi
Pediatrics
3723 W 12600 S
Riverton, UT 84065
  • Reassigned Medicare billing, Utah enrollment
  • 751 clinicians in this Medicare group
NPI 1043671985 (801) 587-6336

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94304 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
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
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.

EIRI INENAGA MS, OTR/L
Occupational Therapist (Pediatrics)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8218
WENDY LEIGH ADAMS ARNP
Nurse Practitioner (Neonatal)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
KEVIN WEI-HAN CHI MD
Pediatrics
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
ASHEEN RAMA MD
Anesthesiology (Pediatric Anesthesiology)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
CRYSTAL LEE MACKALL MD
Pediatrics (Pediatric Hematology-Oncology)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
KRISTI LYNNE O'CONNOR OT
Occupational Therapist
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
LAUREN GENNA ROOS NP
Nurse Practitioner
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
SHALINI MITTAL MD
Hospitalist
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000

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 Ella Thompson's NPI number?

The NPI number for Ella Thompson is 1508531856. It was assigned to this individual provider in the NPPES registry on August 10, 2021.

Where is Ella Thompson located?

Ella Thompson practices at 725 Welch Rd, Palo Alto, CA 94304. The listed phone number is (650) 497-8000.

What is Ella Thompson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Ella Thompson enrolled in Medicare?

Yes. Ella Thompson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ella Thompson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ella Thompson reassigns Medicare benefits to University Of Utah Pediatric Services (Riverton, UT). 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 Ella Thompson'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 Ella Thompson was last updated on March 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.