Physician Profile
Ian C. Chang, M.D.
Unclaimed ProfileAbout Dr. Chang
Based in Rochester, MN, Ian C. Chang, M.D. is listed in the NPI registry under cardiovascular disease. Ian is also listed as specializing in internal medicine. According to Medicare claims data, Ian cared for 787 Medicare patients across 827 services. The services billed most often include ultrasound of heart with color-depicted blood flow, rate, direction and valve function, ultrasound of heart with color-depicted blood flow, rate and valve function, and ultrasound of heart, follow-up.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (507) 284-2511
- Email not available
Practice Locations
200 1ST ST SW
Rochester, MN 55905
110 Irving St NW
Washington, DC 20010
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
Valve and structural heart
Vascular and risk factors
Artery & vascular
Heart inflammation
Heart muscle
Heart valves
Vascular disease
Procedures & services
Most searched procedures
Office and noninvasive testing
Advanced imaging
Consultations
Diagnostic testing
Diagnostics
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
Heart procedures
Heart rhythm procedures
Imaging
Implants
Recovery & rehabilitation
Vascular imaging
Procedures Most Often Billed to Medicare
827 services · 787 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
264 | As often as other peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
96 | More often than most peers in Cardiovascular Disease |
| Ultrasound of heart, follow-up | Treatment | 93308 |
57 | More often than most peers in Cardiovascular Disease |
| Ultrasound of heart blood flow, valves and chambers, follow-up | Treatment | 93321 |
55 | More often than most peers in Cardiovascular Disease |
| Ultrasound of heart with probe in esophagus, with report | Treatment | 93312 |
39 | More often than most peers in Cardiovascular Disease |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
37 | As often as other peers in Cardiovascular Disease |
| Ultrasound of heart blood flow, valves and chambers | Treatment | 93320 |
35 | More often than most peers in Cardiovascular Disease |
| Heart muscle strain imaging | Treatment | 93356 |
33 | As often as other peers in Cardiovascular Disease |
| Interpretation and report of ultrasound of heart | Treatment | 93314 |
26 | As often as other peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
20 | As often as other peers in Cardiovascular Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other cardiologists in Rochester 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2009 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 8
Providers in MN who bill this service to Medicare most often.
Common questions
What does Ian C. Chang specialize in?
Ian C. Chang is a cardiologist in Rochester, MN. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiovascular Disease”.
NPI registry
Where is Ian C. Chang located?
Ian C. Chang is listed at 200 1St St Sw, Rochester, MN 55905. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Ian C. Chang's phone number?
The number on file is (507) 284-2511. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Ian C. Chang's NPI number?
Ian C. Chang's National Provider Identifier is 1538451802. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Ian C. Chang train?
Ian C. Chang attended Other, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How long has Ian C. Chang been practicing?
Ian C. Chang has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What does Ian C. Chang do most often?
According to Medicare billing data, Ian C. Chang provides treatments such as ultrasound of heart with color-depicted blood flow, rate, direction and valve function and ultrasound of heart with color-depicted blood flow, rate and valve function, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Ian C. Chang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Ian C. Chang. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.