Adam Marks, PA-C
Adam Marks, PA-C is a Physician Assistant in Orosi, CA, registered under NPI 1003122391.
Getting there
Here is what surrounds this office in Orosi, based on OpenStreetMap data collected Sep 6, 2026. No dedicated parking is recorded within walking distance, so allow extra time to find street parking. The nearest transit stop is 0.48 mi away, served by Road 128 & Ira Avenue - Sand Creek.
Getting here and what is nearby
Transit Ledbetter Park 0.27 mi ~6 min
Transit Ledbetter Park 0.28 mi ~6 min
Transit Road 128 & Ira Avenue - Sand Creek 0.48 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| PA21117 | CA | Physician Assistant primary |
This provider holds licence PA21117 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 - Physician Assistant
- PAC ID
- 8729273586
- Enrollment ID
- I20101108000169
Medicare enrolment is recorded as approved under the provider type Practitioner - Physician Assistant. 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 Physician Assistant covers
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician. NUCC Health Care Provider Taxonomy, code 363A00000X
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 | 1003122391 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 24, 2010 |
| Last updated | Jul 30, 2013 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | PA-C |
| Practice address |
12586 AVE. 408 Orosi, CA 93647 (559) 528-2804 Fax (559) 528-7623 |
| Mailing address |
305 EAST CENTER AVE. Visalia, CA 93291 |
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 | 0 | 0 | 3 | 1 | 2 | 2 | 3 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 2 | 4 | 3 | 9 |
Sum = 49 · next multiple of 10 = 50 · 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.