Mara Bernardo, RDN, CSO
Mara Bernardo, RDN, CSO is an Oncology Nutrition Registered Dietitian in Stockton, CA, registered under NPI 1255904512. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 415 W BENJAMIN HOLT DR STE B3, Stockton, CA 95207. 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 |
|---|---|---|
| 86033078 | CA | Registered Dietitian |
| 86033078 | CA | Oncology Nutrition Registered Dietitian primary |
This provider holds licence 86033078 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 - Registered Dietitian Or Nutrition Professional
- PAC ID
- 9335530195
- Enrollment ID
- I20220105001536
Medicare enrolment is recorded as approved under the provider type Practitioner - Registered Dietitian Or Nutrition Professional. 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 Nutrition, Oncology covers
An individual who is a Board Certified Specialist in Oncology Nutrition and provides direct nutrition care for individuals at risk for or diagnosed with cancer. RDNs working directly with individuals at risk for, or diagnosed with, any type of malignancy or pre-malignant condition, in a variety of settings (e.g. hospitals, clinics, cancer centers, hospices, public health), OR indirectly through roles in management, education, industry, and research practice linked specifically to oncology nutrition. RDN who works indirectly with oncology nutrition through roles in management, education, industry, and research. NUCC Health Care Provider Taxonomy, code 133VN1301X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 133V00000X | Registered Dietitian | 86033078 | CA | |
| 133VN1301X | Oncology Nutrition Registered Dietitian Nutrition, Oncology | 86033078 | CA | primary |
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 | 1255904512 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 22, 2021 |
| Last updated | Sep 20, 2023 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | RDN, CSO |
| Practice address |
415 W BENJAMIN HOLT DR STE B3 Stockton, CA 95207 (209) 227-0722 Fax (866) 862-8832 |
| Other names |
Mara Owens Former Legal Business Name |
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 | 5 | 5 | 9 | 0 | 4 | 5 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 1 | 5 | 9 | 0 | 8 | 5 | 2 |
Sum = 58 · next multiple of 10 = 60 · check digit = 2 · actual last digit = 2
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.