Victor Sun
NPI 1477679991 · Emergency Medicine Physician · O Fallon, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Victor Sun is a Emergency Medicine Physician provider in O Fallon, IL (NPI 1477679991).
Provider details
- NPI number
- 1477679991
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
539 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 318 | $171 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 140 | $117 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 49 | $8 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 20 | $69 |
| Critical Care, First 30-74 Minutes99291 | 12 | $208 |
Typical Medicare-allowed amounts for these services range $8–$208 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 36 | 36 |
| Ondansetronbrand: Ondansetron Odt | 30 | 30 |
| Ciprofloxacin Hcl | 22 | 22 |
| Dicyclomine Hcl | 15 | 15 |
| Cephalexin | 13 | 13 |
| Cyclobenzaprine Hcl | 12 | 12 |
| Naproxen | 12 | 12 |
| Azithromycin | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Victor Sun's NPI number?
- Victor Sun's National Provider Identifier (NPI) is 1477679991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Victor Sun's specialty?
- Victor Sun is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Victor Sun located?
- Victor Sun's practice location on file with NPPES is 103 N Oak St, O Fallon, IL 62269-1165.
- What is Victor Sun's phone number?
- The practice phone number listed in the NPPES registry for Victor Sun is (618) 624-3368.
- Does Victor Sun accept Medicare?
- Victor Sun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Victor Sun's NPI active?
- Yes — Victor Sun's NPI (1477679991) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.