CUA, GAN AND BIEN MEDICAL CORPORATION
CUA, GAN AND BIEN MEDICAL CORPORATION is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003626276, based in West Covina, CA. The organization lists 2 taxonomy classifications, with Internal Medicine Physician recorded as primary.
Getting there
Here is what surrounds this office in West Covina, based on OpenStreetMap data collected Oct 11, 2026. No dedicated parking is recorded within walking distance, so allow extra time to find street parking. The nearest transit stop is 995 ft away, served by Foothill Transit 272, 281.
Getting here and what is nearby
Gas station Chevron 114 ft ~1 min
1209 South Sunset Avenue, West Covina 91790
Transit Foothill Transit 272, 281 135 ft ~1 min
Transit Foothill Transit 272, 281 218 ft ~1 min
Convenience ExtraMile 204 ft ~1 min
Gas station Arco 285 ft ~2 min
1333 West Merced Avenue, West Covina 91790
Convenience ampm 330 ft ~2 min
Transit Foothill Transit 272, 281 995 ft ~4 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 6608395611
- Enrollment ID
- O20250522002013
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. 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 Internal Medicine covers
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. NUCC Health Care Provider Taxonomy, code 207R00000X
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 | |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | — | — | primary |
| 207Q00000X | Family Medicine Physician | — | — |
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 | 1003626276 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 9, 2025 |
| Last updated | May 7, 2025 |
| Status | Active |
| Practice address |
1433 W MERCED AVE STE 114 West Covina, CA 91790 (626) 960-4989 |
| Other names |
Cua, Gan And Bien Medical Corporation Former Legal Name |
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 | 6 | 2 | 6 | 2 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 2 | 3 | 2 | 5 |
Sum = 44 · next multiple of 10 = 50 · check digit = 6 · actual last digit = 6
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.