Su Chang, MD
NPI 1164499240 · Cardiovascular Disease Physician · Houston, TX
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Su Chang, MD is a Cardiovascular Disease Physician provider in Houston, TX (NPI 1164499240).
Provider details
- NPI number
- 1164499240
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 45434 (WI)
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 tenure25% of score
20 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
5,188 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 | 4,025 | $8 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 357 | $81 |
| Ct Scan of Blood Vessels and Grafts of Heart With Contrast75574 | 353 | $112 |
| Ct Scan of Blood Vessels of Neck With Contrast70498 | 97 | $78 |
| Ct Scan of Abdominal Aorta and Both Leg Arteries With Contrast75635 | 91 | $104 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 87 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 151 | 46 |
| Amlodipine Besylate | 125 | 40 |
| Rosuvastatin Calcium | 90 | 27 |
| Losartan Potassium | 77 | 26 |
| Lisinopril | 65 | 18 |
| Carvedilol | 54 | 18 |
| Apixabanbrand: Eliquis |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,911 across 23 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
- 2006-03-07
- Last updated
- 2017-12-08
Frequently asked questions
- What is Su Chang's NPI number?
- Su Chang's National Provider Identifier (NPI) is 1164499240, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Su Chang's specialty?
- Su Chang is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Su Chang located?
- Su Chang's practice location on file with NPPES is 6550 Fannin St, Houston, TX 77030-2717.
- What is Su Chang's phone number?
- The practice phone number listed in the NPPES registry for Su Chang is (713) 441-1100.
- Does Su Chang accept Medicare?
- Su Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Su Chang's NPI active?
- Yes — Su Chang's NPI (1164499240) is active in the NPPES registry as of the last update on 2017-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.