JOHN MUIR TRAUMA PHYSICIANS BILLING SERVICE
JOHN MUIR TRAUMA PHYSICIANS BILLING SERVICE is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1962551861, based in Walnut Creek, CA. The organization lists 15 taxonomy classifications, with Trauma Surgery Physician recorded as primary.
Getting there
The practice address on file is 1601 YGNACIO VALLEY RD, Walnut Creek, CA 94598. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Trauma Surgery covers
Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency. NUCC Health Care Provider Taxonomy, code 2086S0127X
All registered taxonomy codes
This provider registers 15 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2086S0127X | Trauma Surgery Physician Trauma Surgery | — | — | primary |
| 2086S0122X | Plastic and Reconstructive Surgery Physician Plastic and Reconstructive Surgery | — | — | |
| 2081P0004X | Spinal Cord Injury Medicine Physician Spinal Cord Injury Medicine | — | — | |
| 204E00000X | Oral & Maxillofacial Surgery (D.M.D.) | — | — | |
| 207W00000X | Ophthalmology Physician | — | — | |
| 208800000X | Urology Physician | — | — | |
| 2084P0800X | Psychiatry Physician Psychiatry | — | — | |
| 207XX0801X | Orthopaedic Trauma Physician Orthopaedic Trauma | — | — | |
| 207L00000X | Anesthesiology Physician | — | — | |
| 207RC0000X | Cardiovascular Disease Physician Cardiovascular Disease | — | — | |
| 207Q00000X | Family Medicine Physician | — | — | |
| 207P00000X | Emergency Medicine Physician | — | — | |
| 207Y00000X | Otolaryngology Physician | — | — | |
| 2085R0202X | Diagnostic Radiology Physician Diagnostic Radiology | — | — | |
| 207RI0200X | Infectious Disease Physician Infectious Disease | — | — |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1962551861 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 9, 2007 |
| Last updated | Feb 16, 2026 |
| Status | Active |
| Practice address |
1601 YGNACIO VALLEY RD Walnut Creek, CA 94598 (925) 947-5331 Fax (925) 941-2177 |
| Mailing address |
1400 TREAT BLVD FL 3 Walnut Creek, CA 94597 |
| Other identifiers |
GR0028142
(CA) GR0028144 (CA) GR0028148 (CA) GR0028149 (CA) GR002814G (CA) GR0028143 (CA) GR0028145 (CA) GR002814A (CA) GR002814H (CA) GR002814J (CA) GR002814K (CA) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 9 | 6 | 2 | 5 | 5 | 1 | 8 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 3 | 2 | 1 | 5 | 2 | 8 | 3 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.