Carnella Marks
Carnella Marks is a provider specialising in PACE Provider Organization in Oroville, CA, registered under NPI 1538032511. This provider registers 5 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 PO BOX 1585, Oroville, CA 95965. 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 Program of All-Inclusive Care for the Elderly (PACE) Provider Organization covers
A PACE provider organization is a not-for-profit private or public entity that is primarily engaged in providing PACE services(unique capitated managed care benefits for the frail elderly which include comprehensive medical and social services). The following characteristics also apply to a PACE organization. It must: have a governing board that includes community representation; be able to provide complete PACE services regardless of frequency or duration of services; have a physical site to provide adult day services; have a defined service area; have safeguards against conflict of interest; have demonstrated fiscal soundness and have a formal Participant Bill of Rights. NUCC Health Care Provider Taxonomy, code 251T00000X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 251T00000X | PACE Provider Organization | — | — | primary |
| 253Z00000X | In Home Supportive Care Agency | — | — | |
| 171M00000X | Case Manager/Care Coordinator | — | — | |
| 177F00000X | Lodging Provider | — | — | |
| 172A00000X | Driver | — | — |
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 | 1538032511 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 25, 2025 |
| Last updated | Oct 25, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Practice address |
PO BOX 1585 Oroville, CA 95965 (323) 873-7053 |
| Mailing address |
2270 LINCOLN ST STE 4 Oroville, CA 95966 |
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 | 5 | 3 | 8 | 0 | 3 | 2 | 5 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 6 | 8 | 0 | 3 | 4 | 5 | 2 |
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.