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

HEATHER MARIE VANDONGEN-TRIMMER NP
NPI 1649715236
Nurse Practitioner in Palo Alto, CA

Q: What is Heather Vandongen-trimmer's NPI number?

The NPI number for Heather Vandongen-trimmer is 1649715236. It was assigned to this individual provider in the NPPES registry on January 5, 2017.

Q: What is Heather Vandongen-trimmer's specialty?

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

Active since January 05, 2017PECOS Enrolled

725 WELCH RD, PALO ALTO, CA 94304(650) 497-8000 Get Directions Write a Review

NPPES record last updated: August 4, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 4, 2026, Jun 14, 2023, Feb 21, 2017 and 1 more (4 updates tracked since 2017).

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About Heather Marie Vandongen-trimmer Np NPPES

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

HEATHER MARIE VANDONGEN-TRIMMER NP (NPI 1649715236) is an individual nurse practitioner in Palo Alto, California, licensed in California (95014634) and active in the NPI registry since January 2017. She is enrolled in Medicare PECOS and maintains a secondary practice location in Stanford.

NPPES Registry Identity

NPI1649715236

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameHEATHER MARIE VANDONGEN-TRIMMERCredential: NP

Location Address725 WELCH RDPalo Alto, CA 94304-1601

Mailing Address725 Welch RdPalo Alto, CA 94304-1601

Phone(650) 497-8000

Sole ProprietorNo

Enumeration DateJanuary 5, 2017

Last NPPES UpdateAugust 4, 20264 updates tracked since enumeration

NPPES CertifiedAugust 4, 2026

✔ NPI 1649715236 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in CA · 95014634

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.

725 WELCH RD, Palo Alto, CA 94304

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Secondary Practice Location 1

Location 1300 Pasteur DrStanford, CA 94305-2200 · Phone (650) 723-4000

Other Identifiers 1

Medicaid1649715236WI

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Heather Marie Vandongen-trimmer 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.

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)