Younghoon Kwon, MD
NPI 1639377591 · Cardiovascular Disease Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Younghoon Kwon, MD is a Cardiovascular Disease Physician provider in Seattle, WA (NPI 1639377591).
Provider details
- NPI number
- 1639377591
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD61009591 (WA)
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
18 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
921 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 753 | $9 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 87 | $86 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 25 | $130 |
| Critical Care, First 30-74 Minutes99291 | 24 | $230 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 19 | $90 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18,026 across 18 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
- 2007-07-03
- Last updated
- 2020-05-12
- Certified
- 2020-05-12
Frequently asked questions
- What is Younghoon Kwon's NPI number?
- Younghoon Kwon's National Provider Identifier (NPI) is 1639377591, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Younghoon Kwon's specialty?
- Younghoon Kwon is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Younghoon Kwon located?
- Younghoon Kwon's practice location on file with NPPES is 325 9th Ave, Seattle, WA 98104-2420.
- What is Younghoon Kwon's phone number?
- The practice phone number listed in the NPPES registry for Younghoon Kwon is (206) 520-5000.
- Does Younghoon Kwon accept Medicare?
- Younghoon Kwon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Younghoon Kwon's NPI active?
- Yes — Younghoon Kwon's NPI (1639377591) is active in the NPPES registry as of the last update on 2020-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.