Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. John Judson Trix, MS, RN, APRN-BC

Individual provider Nurse Practitioner · NPI 1477745685

Mr. John Judson Trix, MS, RN, APRN-BC is a Nurse Practitioner in Walnut Creek, California. Graduated from University of Michigan Medical School in 2007, 19 years ago. Practices with John Muir Physician Network, a 486-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
19
Trained at
University of Michigan Medical School
Licensed in
CA
In the registry since
2007
What do these letters mean?
MS — Master of Science
A graduate science degree.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

122 La Casa Via Ste 120
Walnut Creek, CA 94598-3019
Phone: (925) 941-4058
Fax: (925) 941-4049
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2100 Lincoln Village Cir, Larkspur, CA 94939-1613 — (415) 730-8464

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 17156 (CA)

Record details

NPI number1477745685
Entity typeIndividual (Type 1)
GenderMale
Credentials MS , RN , APRN-BC
Sole proprietorNo
NPI enumeratedAugust 11, 2007
Last updated in NPPESAugust 2, 2022
Certification dateAugust 2, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 2007 (19 years in practice)
Group practice John Muir Physician Network — 486 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients415
Services billed 1,024 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at John Muir Physician Network

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 486 clinicians in the practice; 12 are shown here.

Other providers in Walnut Creek