RICHARD B. RIEMER D.O.
RICHARD B. RIEMER D.O. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1801997242, based in Sacramento, CA. The organization lists 3 taxonomy classifications, with Sports Medicine (Psychiatry & Neurology) Physician recorded as primary.
Getting there
The practice address on file is 2801 K ST SUITE 420, Sacramento, CA 95816. 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 |
|---|---|---|
| 20A5069 | CA | Sports Medicine (Psychiatry & Neurology)… primary |
| 20A5069 | CA | Neurology Physician |
| 20A5069 | CA | Clinical Neurophysiology Physician |
This provider holds licence 20A5069 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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 Sports Medicine covers
A psychiatrist or neurologist who specializes in the diagnosis and treatment of sports related conditions and injuries. NUCC Health Care Provider Taxonomy, code 2084S0010X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2084S0010X | Sports Medicine (Psychiatry & Neurology) Physician Sports Medicine | 20A5069 | CA | primary |
| 2084N0400X | Neurology Physician Neurology | 20A5069 | CA | |
| 2084N0600X | Clinical Neurophysiology Physician Clinical Neurophysiology | 20A5069 | 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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1801997242 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Sep 26, 2006 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Practice address |
2801 K ST SUITE 420 Sacramento, CA 95816 (916) 733-8877 Fax (916) 733-8878 |
| Other identifiers |
00AX50690
(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 | 8 | 0 | 1 | 9 | 9 | 7 | 2 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 0 | 1 | 9 | 9 | 5 | 2 | 8 |
Sum = 68 · next multiple of 10 = 70 · 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.