1. Home
  2. Directory
  3. Texas
  4. Houston
  5. Internal Medicine
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SU MIN CHANG MD
NPI 1164499240
Internal Medicine - Cardiovascular Disease in Houston, TX

Active since March 07, 2006PECOS EnrolledAccepts Medicare Assignment
6550 FANNIN ST, SUITE 1901, HOUSTON, TX 77030(713) 441-1100(713) 790-2643 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 29, 2026, Dec 8, 2017, Aug 30, 2017 (3 updates tracked since 2017).

About Su Min Chang Md NPPES

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

SU MIN CHANG MD (NPI 1164499240) is an individual cardiovascular disease provider in Houston, Texas, licensed in Texas (K9499) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Houston Methodist Hospital, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1164499240
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameSU MIN CHANGCredential: MD
Location Address6550 FANNIN ST, SUITE 1901Houston, TX 77030-2717
Mailing Address6550 Fannin St, Suite 1901Houston, TX 77030-2717 · (713) 441-1100 · Fax (713) 790-2643
Phone(713) 441-1100
Fax(713) 790-2643
Sole ProprietorNo
Medical School CMSOtherGraduated 1991
Enumeration DateMarch 7, 2006
Last NPPES UpdateSeptember 29, 20263 updates tracked since enumeration
✔ NPI 1164499240 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Licenses✔ Licensed in TX · K9499✔ Licensed in WI · 45434
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.
6550 FANNIN ST, Houston, TX 77030
Open in Google Maps ↗

Other Identifiers 11

Medicaid190639806TX
Medicaid34365500WI
Other8AH671TX · Blue Cross Blue Shield
OtherP00459994TX · Railroad Medicare
Medicaid1886602LA
Medicaid190639807TX
Medicaid190639802TX
Medicaid190639803TX
Medicaid190639801TX
OtherP01309509TX · Rr Medicare
OtherP01037115TX · Rr Medicare

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, WellPoint.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

Su Min Chang Md 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 ID9537242623
PECOS Enrollment IDI20080213000148
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

2

Medicare enrollment records show Su Chang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tmh Physician Associates PLLC
Same address
Ophthalmology
6550 FANNIN ST, SUITE 447
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 2,407 clinicians in this Medicare group
NPI 1275779225 (713) 441-7389
Houston Methodist Specialty Physicians
1.0 mi
Otolaryngology
7550 GREENBRIAR DR STE 600
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 1,579 clinicians in this Medicare group
NPI 1902614332 (281) 414-6055

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 10

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
4,025 services2,505 patients
Ct scan of blood vessels of chest with contrast 71275
A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.
357 services355 patients
Ct scan of blood vessels and grafts of heart with contrast 75574
A CT scan of the heart's blood vessels and grafts with contrast is a diagnostic test. A special dye (contrast) is injected into your veins, which helps create clear images of your heart's vessels and grafts. This helps doctors detect blockages or other abnormalities.
353 services352 patients
Ct scan of blood vessels of neck with contrast 70498
A CT scan of the neck's blood vessels with contrast is a diagnostic procedure. It uses X-rays and a special dye to create detailed images of your neck's blood vessels. This helps doctors detect issues such as blockages or abnormalities.
97 services97 patients
Ct scan of abdominal aorta and both leg arteries with contrast 75635
A CT scan of the abdominal aorta and both leg arteries with contrast is a medical imaging procedure. A special dye is injected to make your blood vessels visible on the scan. This helps to check for any blockages or abnormalities in these areas.
91 services91 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
87 services64 patients

Hospital Affiliations CMS Care Compare 4

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

Houston Methodist Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450358
Location6565 FanninHouston, TX 77030 · Harris County
Emergency services Birthing friendly

Houston Methodist Sugarland Hospital

Acute Care Hospitals · Sugar Land, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450820
Location16655 Southwest FreewaySugar Land, TX 77479 · Fort Bend County
Emergency services Birthing friendly

Houston Methodist West Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670077
Location18500 Katy FreewayHouston, TX 77094 · Harris County
Emergency services Birthing friendly

Houston Methodist The Woodlands Hospital

Acute Care Hospitals · The Woodlands, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670122
Location17201 Interstate 45 SouthThe Woodlands, TX 77385 · Montgomery County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77030 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
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
Established Patient
$72.62 typical visit price
range $18.60 – $143.93
Typical copayment $18.15 (range $4.65 – $35.98)
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.

MEGAN MCCLANAHAN
Student in an Organized Health Care Education/Training Program
6550 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 441-5155
MARIANNE CARLSON PSYD
Psychologist (Clinical)
6550 FANNIN ST
HOUSTON, TX 77030
Harris County (346) 248-2040
MARIE MCLAIN P.A.
Physician Assistant
6550 FANNIN ST, SMITH TOWER, SUITE 1901
HOUSTON, TX 77030
Harris County (713) 441-1100
DALIA MOGHAZY MD
Obstetrics & Gynecology
6550 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 790-3311
YVONNE I-FANG CHU M.D.
Ophthalmology
6550 FANNIN ST, SUITE 1501
HOUSTON, TX 77030
Harris County (713) 798-6100
DR. SAM JERRY LONG D.D.S.
Dentist (General Practice)
6550 FANNIN ST, STE 2103
HOUSTON, TX 77030
Harris County (713) 797-0846
THOMAS W KNIGHT MD
Internal Medicine
6550 FANNIN ST, SMITH 1101
HOUSTON, TX 77030
Harris County (713) 441-0006
DR. JOOHI JIMENEZ-SHAHED M.D.
Psychiatry & Neurology (Neurology)
6550 FANNIN ST, SUITE 1801
HOUSTON, TX 77030
Harris County (713) 798-5975

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Su Chang's NPI number?

The NPI number for Su Chang is 1164499240. It was assigned to this individual provider in the NPPES registry on March 7, 2006.

Where is Su Chang located?

Su Chang practices at 6550 Fannin St Suite 1901, Houston, TX 77030. The listed phone number is (713) 441-1100.

What is Su Chang's specialty?

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

Is Su Chang enrolled in Medicare?

Yes. Su Chang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Su Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Su Chang reassigns Medicare benefits to 2 organizations: Tmh Physician Associates PLLC (Houston, TX) and Houston Methodist Specialty Physicians (Houston, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Su Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Su Chang accept?

Health plans from Blue Cross and Blue Shield of Texas and WellPoint list Su Chang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Su Chang affiliated with any hospitals?

According to CMS data, Su Chang is affiliated with Houston Methodist Hospital, Houston Methodist Sugarland Hospital, Houston Methodist West Hospital and Houston Methodist The Woodlands Hospital.

When was this NPI record last updated?

The NPPES record for Su Chang was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days 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.