Ian Chang, M.D.
NPI 1538451802 · Cardiovascular Disease Physician · Rochester, MN
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ian Chang, M.D. is a Cardiovascular Disease Physician provider in Rochester, MN (NPI 1538451802).
Provider details
- NPI number
- 1538451802
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 57185 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
15 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
827 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) |
|---|---|---|
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 264 | $68 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate and Valve Function93325 | 96 | $3 |
| Ultrasound of Heart, Follow-Up93308 | 57 | $25 |
| Ultrasound of Heart Blood Flow, Valves and Chambers, Follow-Up93321 | 55 | $7 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 40 | $183 |
| Ultrasound of Heart With Probe in Esophagus, With Report93312 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tafamidisbrand: Vyndamax | 145 | 17 |
| Empagliflozinbrand: Jardiance | 77 | 18 |
| Tafamidis Megluminebrand: Vyndaqel | 45 | — |
| Furosemide | 27 | — |
| Rosuvastatin Calcium | 26 | — |
| Losartan Potassium | 22 | — |
| Apixaban |
Practice location
Mailing address
Additional practice locations (1)
- 110 Irving St NwWashington, DC 20010-3017Phone: (202) 877-7000
Registry dates
- Enumerated
- 2011-05-05
- Last updated
- 2021-04-19
- Certified
- 2021-04-19
Frequently asked questions
- What is Ian Chang's NPI number?
- Ian Chang's National Provider Identifier (NPI) is 1538451802, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Chang's specialty?
- Ian Chang is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ian Chang located?
- Ian Chang's practice location on file with NPPES is 200 1st St Sw, Rochester, MN 55905-0001.
- What is Ian Chang's phone number?
- The practice phone number listed in the NPPES registry for Ian Chang is (507) 284-2511.
- Does Ian Chang accept Medicare?
- Ian Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ian Chang's NPI active?
- Yes — Ian Chang's NPI (1538451802) is active in the NPPES registry as of the last update on 2021-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.