David Ko, M.D.
David Ko, M.D. is a Clinical Neurophysiology Physician in Loma Linda, CA, registered under NPI 1932143963. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 11201 BENTON ST # 2A-205, Loma Linda, CA 92357. 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 |
|---|---|---|
| G81872 | CA | Clinical Neurophysiology Physician primary |
| G81872 | CA | Epilepsy Physician |
| G81872 | CA | Neurology Physician |
This provider holds licence G81872 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 - Neurology
- PAC ID
- 8527117605
Enrolled in Medicare 3 times, across 3 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| California | I20090520000142 | Practitioner - Neurology |
| Montana | I20260305002861 | Practitioner - Neurology |
| New Mexico | I20260306002039 | Practitioner - Neurology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Neurology. There are 3 separate enrolment records across 3 states (CA, MT, NM). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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 Clinical Neurophysiology covers
Clinical Neurophysiology is a subspecialty with psychiatric or neurologic expertise in the diagnosis and management of central, peripheral, and autonomic nervous system disorders using combined clinical evaluation and electrophysiologic testing such as electroencephalography (EEG), electromyography (EMG), and nerve conduction studies (NCS). NUCC Health Care Provider Taxonomy, code 2084N0600X
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 | |
|---|---|---|---|---|
| 2084N0600X | Clinical Neurophysiology Physician Clinical Neurophysiology | G81872 | CA | primary |
| 2084E0001X | Epilepsy Physician Epilepsy | G81872 | CA | |
| 2084N0400X | Neurology Physician Neurology | G81872 | 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-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 | 1932143963 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 16, 2006 |
| Last updated | Mar 19, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
11201 BENTON ST # 2A-205 Loma Linda, CA 92357 (909) 825-7084 Fax (909) 777-3814 |
| Mailing address |
3240 LOMBARDY RD Pasadena, CA 91107 |
| Other identifiers |
00G818720
· Medicaid (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 | 9 | 3 | 2 | 1 | 4 | 3 | 9 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 6 | 2 | 2 | 4 | 6 | 9 | 3 |
Sum = 67 · next multiple of 10 = 70 · check digit = 3 · actual last digit = 3
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.