DR. IAN CHENG-YI CHANG M.D.
NPI 1538451802
Internal Medicine - Cardiovascular Disease in Rochester, MN

Q: What is Ian Chang's NPI number?

The NPI number for Ian Chang is 1538451802. It was assigned to this individual provider in the NPPES registry on May 5, 2011. The provider is also known as Dr. Cheng-Yi Chang M.D..

Q: What is Ian Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Ian Chang was last updated on April 19, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 05, 2011PECOS EnrolledAccepts Medicare Assignment

200 1ST ST SW, ROCHESTER, MN 55905(507) 284-2511 Get Directions Write a Review

NPPES record last updated: April 19, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 19, 2021, Aug 2, 2019, Feb 15, 2016 (3 updates tracked since 2016).

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About Dr. Ian Cheng-yi Chang M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. IAN CHENG-YI CHANG M.D. (NPI 1538451802) is an individual cardiovascular disease provider in Rochester, Minnesota, licensed in Minnesota (57185) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS, is affiliated with Mayo Clinic Hospital Rochester, and maintains a secondary practice location in Washington.

NPPES Registry Identity

NPI1538451802

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameDR. IAN CHENG-YI CHANGCredential: M.D.

Location Address200 1ST ST SWRochester, MN 55905-0001

Mailing Address200 1st St SwRochester, MN 55905-0001 · (507) 284-2511

Phone(507) 284-2511

Sole ProprietorNo

Medical School CMSOtherGraduated 2009

Enumeration DateMay 5, 2011

Last NPPES UpdateApril 19, 20213 updates tracked since enumeration

NPPES CertifiedApril 19, 2021

✔ NPI 1538451802 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

Licenses✔ Licensed in MN · 57185✔ Licensed in DC · MD046885

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Also ListedInternal MedicineTaxonomy 207R00000X · License 57185 (MN)

200 1ST ST SW, Rochester, MN 55905

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Other Names 1

Other Name (5)Dr. Cheng-yi Chang M.d.

Secondary Practice Location 1

Location 1110 Irving St NWWashington, DC 20010-3017 · Phone (202) 877-7000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Wellmark Health Plan of Iowa, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ian Cheng-yi Chang M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1153559307

PECOS Enrollment IDI20140114001507

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Ian Chang reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mayo Clinic

Same address

Infectious Disease

200 1ST ST SW
Rochester, MN 55905

Reassigned Medicare billing, Minnesota enrollment
6,534 clinicians in this Medicare group

NPI 1114343860 (507) 284-2511

Winneshiek Medical Center

49 mi

Primary Care

114 MAIN ST S
Mabel, MN 55954

Reassigned Medicare billing, Minnesota and Iowa enrollments
Also billed through NPI 1750042032 (Iowa), NPI 1619922051 (Iowa)
108 clinicians in this Medicare group

NPI 1093857393 (563) 382-2911

Fairview Health Services

64 mi

General Acute Care Hospital

201 E NICOLLET BLVD, OUTREACH LAB DEPARTMENT
Burnsville, MN 55337

Reassigned Medicare billing, Minnesota enrollment
4,038 clinicians in this Medicare group

NPI 1225199128 (952) 892-2085

Medstar Heart Institute LLC

874 mi

Surgery

110 IRVING ST NW, ATTN: MEDICAL AFFAIRS
Washington, DC 20010

Reassigned Medicare billing, District of Columbia enrollment
277 clinicians in this Medicare group

NPI 1528345378 (202) 877-5284

Medstar Medical Group Radiology, LLC

874 mi

Diagnostic Radiology

110 IRVING ST NW
Washington, DC 20010

Reassigned Medicare billing, District of Columbia enrollment
178 clinicians in this Medicare group

NPI 1326450156 (301) 902-1073

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 16

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

264 services261 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

96 services96 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

57 services57 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

55 services55 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

40 services35 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

39 services39 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

37 services37 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

35 services35 patients

Heart muscle strain imaging 93356

Heart muscle strain imaging is a non-invasive test that uses sound waves to create pictures of your heart. It helps doctors evaluate how well your heart muscle is working and detect any damage or disease. This can aid in diagnosing heart conditions and guiding treatment plans.

33 services33 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

33 services20 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

29 services16 patients

Interpretation and report of ultrasound of heart 93314

This procedure involves using ultrasound technology to create images of your heart. These images help identify heart conditions by showing the size, structure, and motion of your heart. A report is then prepared detailing the findings.

26 services26 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

25 services25 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

21 services15 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

20 services20 patients

3d ultrasound imaging of heart for evaluation of heart structure performed during ultrasound imaging of congenital heart defects 93319

3D ultrasound imaging of the heart is a non-invasive procedure that uses sound waves to create a detailed three-dimensional image of your heart. This helps in evaluating the heart's structure, particularly for diagnosing congenital heart defects. It is safe, painless and provides valuable information about your heart health.

17 services17 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mayo Clinic Hospital Rochester

Acute Care Hospitals · Rochester, MN

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number240010

Location1216 Second Street SouthwestRochester, MN 55902 · Olmsted County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 55905 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$127.61 typical visit price

range $56.00 – $168.28

Typical copayment $31.90 (range $14.00 – $42.07)

Most-billed visit code 99204

Established Patient

$69.74 typical visit price

range $18.32 – $138.04

Typical copayment $17.43 (range $4.58 – $34.51)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

EMILY LEASURE MD

Internal Medicine