Hyukje Sung, MD, MA
Hyukje Sung, MD, MA is an Occupational Medicine Physician in Loma Linda, CA, registered under NPI 1003502105. 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 Loma Linda, based on OpenStreetMap data collected Sep 18, 2026. Parking is available about 506 ft away at Patient Parking Structure. The nearest transit stop is 904 ft away, served by Barton @ Anderson Eastbound. If you arrive early, there is a coffee shop 0.34 mi away.
Getting here and what is nearby
Parking 335 ft ~2 min
Parking 471 ft ~2 min
Parking Patient Parking Structure 506 ft ~2 min
Transit Barton @ Anderson Westbound 598 ft ~3 min
Transit Barton @ Campus Eastbound 683 ft ~3 min
Transit Barton @ Anderson Eastbound 904 ft ~4 min
Grocery Loma Linda Market Juice Bar 0.25 mi ~6 min
Grocery Loma Linda Market 0.26 mi ~6 min
Coffee Cafe Society 0.34 mi ~7 min
Hotel Loma Linda Inn 0.40 mi ~8 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 |
|---|---|---|
| A198807 | CA | Occupational Medicine Physician primary |
This provider holds licence A198807 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 Occupational Medicine covers
Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability. NUCC Health Care Provider Taxonomy, code 2083X0100X
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 | |
|---|---|---|---|---|
| 2083X0100X | Occupational Medicine Physician Occupational Medicine | A198807 | CA | primary |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1003502105 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 12, 2023 |
| Last updated | May 4, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD, MA |
| Practice address |
11234 ANDERSON ST Loma Linda, CA 92354 (909) 558-6491 |
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 | 5 | 0 | 2 | 1 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 0 | 4 | 1 | 0 |
Sum = 35 · next multiple of 10 = 40 · check digit = 5 · actual last digit = 5
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.