Kay-Won Chang
NPI 1205213410 · Cardiovascular Disease Physician · Dublin, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kay-Won Chang is a Cardiovascular Disease Physician provider in Dublin, CA (NPI 1205213410).
Provider details
- NPI number
- 1205213410
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A144085 (CA)
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
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,897 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 299 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 298 | $213 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 284 | $254 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 205 | $19 |
| Heart Muscle Strain Imaging93356 | 108 | $48 |
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 |
|---|---|---|
| Rosuvastatin Calcium | 372 | 123 |
| Atorvastatin Calcium | 209 | 76 |
| Apixabanbrand: Eliquis | 158 | 42 |
| Metoprolol Succinate | 76 | 30 |
| Ezetimibe | 49 | 21 |
| Sacubitril/Valsartanbrand: Entresto | 40 | 11 |
| Amlodipine Besylate |
Practice location
Mailing address
Additional practice locations (1)
- 3200 Kearney StreetBuilding 2, 1st FloorFremont, CA 94538Phone: (619) 543-6268
Registry dates
- Enumerated
- 2015-04-27
- Last updated
- 2021-08-25
- Certified
- 2021-06-11
Frequently asked questions
- What is Kay-Won Chang's NPI number?
- Kay-Won Chang's National Provider Identifier (NPI) is 1205213410, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kay-Won Chang's specialty?
- Kay-Won Chang is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Kay-Won Chang located?
- Kay-Won Chang's practice location on file with NPPES is 4000 Dublin Blvd, Dublin, CA 94568.
- What is Kay-Won Chang's phone number?
- The practice phone number listed in the NPPES registry for Kay-Won Chang is (510) 498-2178.
- Does Kay-Won Chang accept Medicare?
- Kay-Won Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kay-Won Chang's NPI active?
- Yes — Kay-Won Chang's NPI (1205213410) is active in the NPPES registry as of the last update on 2021-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.