Pei Liu, MD
Pei Liu, MD is a Neurology Physician in Redlands, CA, registered under NPI 1003234550. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Redlands, based on OpenStreetMap data collected Sep 13, 2026. Parking is available about 0.30 mi away. The nearest transit stop is 0.27 mi away. If you arrive early, there is a coffee shop 711 ft away.
Getting here and what is nearby
Parking 482 ft ~2 min
Transit 671 ft ~3 min
Coffee Hoji Tea Room 711 ft ~3 min
721 Nevada Street, Redlands 92373
Grocery Smart & Final 899 ft ~4 min
1720 West Redlands Boulevard, Redlands 92373
Parking 969 ft ~4 min
Restaurant Wienerschnitzel 0.23 mi ~5 min
1961 W Redlands Boulevard, Redlands 92373
Transit 0.27 mi ~6 min
Restaurant Red Panka 0.27 mi ~6 min
Restaurant Subway 0.27 mi ~6 min
1971 West Redlands Boulevard, Redlands 92373
Parking 0.30 mi ~6 min
Convenience 7-Eleven 0.38 mi ~8 min
Gas station Shell 0.42 mi ~9 min
Hotel Country Inn & Suites 0.42 mi ~9 min
Gas station Chevron 0.43 mi ~9 min
Hotel Country Inn & Suites, San Bernardino (Redlands), CA 0.43 mi ~9 min
Convenience ExtraMile 0.45 mi ~10 min
Hotel Extended Stay America 0.46 mi ~10 min
1700 Orange Tree Lane, Redlands 92374
Convenience The Redlands Thrift Store 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 |
|---|---|---|
| A139170 | CA | Clinical Neurophysiology Physician |
| A139170 | CA | Neurology Physician primary |
This provider holds licence A139170 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
- 6901157650
- Enrollment ID
- I20190724003343
Medicare enrolment is recorded as approved under the provider type Practitioner - Neurology. 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 Neurology covers
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures. NUCC Health Care Provider Taxonomy, code 2084N0400X
All registered taxonomy codes
This provider registers 2 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 | A139170 | CA | |
| 2084N0400X | Neurology Physician Neurology | A139170 | CA | primary |
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 | 1003234550 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 2, 2014 |
| Last updated | Sep 9, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
1839 W REDLANDS BLVD Redlands, CA 92373 (951) 785-7190 Fax (951) 688-7246 |
| Mailing address |
4234 RIVERWALK PKWY STE 280 Riverside, CA 92505 |
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 | 2 | 3 | 4 | 5 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 3 | 8 | 5 | 1 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
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.