Donald Brophy, D.C,
Donald Brophy, D.C, is a provider specialising in Internist Chiropractor in Antioch, CA, registered under NPI 1821098336. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 3731 SUNSET LN SUITE 102, Antioch, CA 94509. 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
| Licence | State | Specialty |
|---|---|---|
| 15826 | CA | Internist Chiropractor primary |
| 15826 | CA | Occupational Health Chiropractor |
| 15826 | CA | Orthopedic Chiropractor |
This provider holds licence 15826 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Chiropractic
- PAC ID
- 8022049899
- Enrollment ID
- I20050822001415
Medicare enrolment is recorded as approved under the provider type Practitioner - Chiropractic. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Internist covers
The chiropractic internist may serve as a primary care physician or may see patients referred from other providers for evaluation and co-management. Evaluation is focused on the early detection of functional, nutritional, and pathological disorders. A chiropractic internist utilizes the diagnostic instruments necessary for proper examination. In cases where laboratory examination is necessary, a chiropractic internist utilizes a recognized reference laboratory facility. A chiropractic internist may manage his or her own cases or may refer to another specialist when prudent to do so. The chiropractic internist utilizes documented natural therapies, therapeutic lifestyle changes, patient education and other resources to promote patient health and avoidance of disease. NUCC Health Care Provider Taxonomy, code 111NI0900X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 111NI0900X | Internist Chiropractor Internist | 15826 | CA | primary |
| 111NX0100X | Occupational Health Chiropractor Occupational Health | 15826 | CA | |
| 111NX0800X | Orthopedic Chiropractor Orthopedic | 15826 | CA |
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-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1821098336 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 26, 2005 |
| Last updated | Aug 8, 2012 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | D.C, |
| Practice address |
3731 SUNSET LN SUITE 102 Antioch, CA 94509 (925) 754-6780 Fax (925) 754-6915 |
| Other identifiers |
DC0158260
· Medicaid (CA) T76484 · Other (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 | 8 | 2 | 1 | 0 | 9 | 8 | 3 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 4 | 1 | 0 | 9 | 7 | 3 | 6 |
Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6
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.