Sean Chung, M.D.
NPI 1528160991 · Internal Medicine Physician · Torrance, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Chung, M.D. is a Internal Medicine Physician provider in Torrance, CA (NPI 1528160991).
Provider details
- NPI number
- 1528160991
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A62212 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
60 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 60 | $123 |
Typical Medicare-allowed amounts for these services range $123–$123 (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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 60 | 49 |
| Furosemide | 30 | 29 |
| Pantoprazole Sodium | 28 | 20 |
| Valsartan | 23 | 22 |
| Carvedilol | 21 | 13 |
| Rosuvastatin Calcium | 21 | — |
| Dapagliflozin Propanediolbrand: Farxiga | 20 | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-05
- Last updated
- 2025-12-08
- Certified
- 2025-12-08
Frequently asked questions
- What is Sean Chung's NPI number?
- Sean Chung's National Provider Identifier (NPI) is 1528160991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Chung's specialty?
- Sean Chung is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sean Chung located?
- Sean Chung's practice location on file with NPPES is 3300 Lomita Blvd., Torrance, CA 90505.
- What is Sean Chung's phone number?
- The practice phone number listed in the NPPES registry for Sean Chung is (310) 214-0811.
- Does Sean Chung accept Medicare?
- Sean Chung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Chung's NPI active?
- Yes — Sean Chung's NPI (1528160991) is active in the NPPES registry as of the last update on 2025-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.