Richard Guzzetta, MD
Richard Guzzetta, MD is an Addiction (Substance Use Disorder) Counselor in Clovis, CA, registered under NPI 1265422695. This provider registers 10 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 312 5TH ST STE B, Clovis, CA 93612. 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 |
|---|---|---|
| G40600 | CA | Public Health & General Preventive… |
| G40600 | CA | Pain Medicine Physician |
| G40600 | CA | Addiction (Substance Use Disorder)… primary |
| G40600 | CA | Mental Health Counselor |
| G40600 | CA | Specialist |
| G40600 | CA | Research Study Specialist |
| G40600 | CA | Research Study Abstracter/Coder |
| G40600 | CA | Family Medicine Physician |
| G40600 | CA | Addiction Medicine (Family Medicine)… |
| G40600 | CA | Pain Medicine (Physical Medicine &… |
This provider holds licence G40600 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 - Family Practice
- PAC ID
- 5991868010
- Enrollment ID
- I20090114000847
Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. 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 Addiction (Substance Use Disorder) covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YA0400X
All registered taxonomy codes
This provider registers 10 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2083P0901X | Public Health & General Preventive Medicine Physician Public Health & General Preventive Medicine | G40600 | CA | |
| 208VP0000X | Pain Medicine Physician Pain Medicine | G40600 | CA | |
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | G40600 | CA | primary |
| 101YM0800X | Mental Health Counselor Mental Health | G40600 | CA | |
| 174400000X | Specialist | G40600 | CA | |
| 1744R1102X | Research Study Specialist Research Study | G40600 | CA | |
| 1744R1103X | Research Study Abstracter/Coder Research Data Abstracter/Coder | G40600 | CA | |
| 207Q00000X | Family Medicine Physician | G40600 | CA | |
| 207QA0401X | Addiction Medicine (Family Medicine) Physician Addiction Medicine | G40600 | CA | |
| 2081P2900X | Pain Medicine (Physical Medicine & Rehabilitation) Physician Pain Medicine | G40600 | 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 | 1265422695 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 26, 2005 |
| Last updated | Oct 22, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MD |
| Practice address |
312 5TH ST STE B Clovis, CA 93612 (559) 285-5723 Fax (559) 323-4498 |
| Other identifiers |
00G406000
· Medicaid (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 | 2 | 6 | 5 | 4 | 2 | 2 | 6 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 3 | 5 | 8 | 2 | 4 | 6 | 9 |
Sum = 65 · next multiple of 10 = 70 · check digit = 5 · actual last digit = 5
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.