Richelle Marracino, M.D.
Richelle Marracino, M.D. is an Adult Medicine Physician in San Bernardino, CA, registered under NPI 1861602021. 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 5500 UNIVERSITY PARKWAY CSUSB STUDENT HEALTH CENTER, San Bernardino, CA 92407. 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 |
|---|---|---|
| A67463 | CA | Adult Medicine Physician primary |
This provider holds licence A67463 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
- Order And Referring Only - Family Practice
- PAC ID
- 6204127491
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Family Practice. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Adult Medicine covers
The NUCC recommends this code not be used. Choose a more appropriate code. NUCC Health Care Provider Taxonomy, code 207QA0505X
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 | 1861602021 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 23, 2007 |
| Last updated | Jun 17, 2014 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | M.D. |
| Practice address |
5500 UNIVERSITY PARKWAY CSUSB STUDENT HEALTH CENTER San Bernardino, CA 92407 (909) 537-7444 Fax (909) 537-7027 |
| Mailing address |
PO BOX 7100 Redlands, CA 92375 |
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 | 6 | 1 | 6 | 0 | 2 | 0 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 3 | 1 | 3 | 0 | 4 | 0 | 4 |
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.