Jonathan Sung
NPI 1477057859 · Nephrology Physician · Torrance, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Sung is a Nephrology Physician provider in Torrance, CA (NPI 1477057859).
Provider details
- NPI number
- 1477057859
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A173433 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,323 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 35 Minutes99232 | 528 | $82 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 235 | $134 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 187 | $122 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 149 | $179 |
| Hemodialysis Procedure With Physician Evaluation90935 | 93 | $73 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 71 | 21 |
| Dapagliflozin Propanediolbrand: Farxiga | 47 | 14 |
| Furosemide | 47 | 22 |
| Epoetin Alfa-Epbxbrand: Retacrit | 42 | 13 |
| Sodium Zirconium Cyclosilicatebrand: Lokelma | 42 | — |
| Nifedipinebrand: Nifedipine Er | 41 | 13 |
| Finerenonebrand: Kerendia |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,328 across 122 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-03-21
- Last updated
- 2023-07-21
- Certified
- 2023-07-21
Frequently asked questions
- What is Jonathan Sung's NPI number?
- Jonathan Sung's National Provider Identifier (NPI) is 1477057859, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Sung's specialty?
- Jonathan Sung is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Sung located?
- Jonathan Sung's practice location on file with NPPES is 3291 Skypark Dr, Torrance, CA 90505-5004.
- What is Jonathan Sung's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Sung is (310) 325-4517.
- Does Jonathan Sung accept Medicare?
- Jonathan Sung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Sung's NPI active?
- Yes — Jonathan Sung's NPI (1477057859) is active in the NPPES registry as of the last update on 2023-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.