John Trix, MS, RN, APRN-BC
NPI 1477745685 · Nurse Practitioner · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Trix, MS, RN, APRN-BC is a Nurse Practitioner provider in Walnut Creek, CA (NPI 1477745685).
Provider details
- NPI number
- 1477745685
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MS, RN, APRN-BC
- Sex
- Male
- Sole proprietor
- No
- License
- 17156 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,021 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 379 | $9 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 268 | $221 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 220 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 125 | $183 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 29 | $131 |
Typical Medicare-allowed amounts for these services range $9–$221 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 2100 Lincoln Village CirApt 2208Larkspur, CA 94939-1613Phone: (415) 730-8464
Registry dates
- Enumerated
- 2007-08-11
- Last updated
- 2022-08-02
- Certified
- 2022-08-02
Frequently asked questions
- What is John Trix's NPI number?
- John Trix's National Provider Identifier (NPI) is 1477745685, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Trix's specialty?
- John Trix is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Trix located?
- John Trix's practice location on file with NPPES is 122 La Casa Via Ste 120, Walnut Creek, CA 94598-3019.
- What is John Trix's phone number?
- The practice phone number listed in the NPPES registry for John Trix is (925) 941-4058.
- Does John Trix accept Medicare?
- John Trix is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Trix's NPI active?
- Yes — John Trix's NPI (1477745685) is active in the NPPES registry as of the last update on 2022-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.