NPPES file of Aug 9, 2026

Ronald Chang, MD

Vascular Surgery Physician · Pasadena, TX

Ronald Chang, MD is a vascular surgery physician with a practice address in Pasadena, Texas, and NPI 1639411150, issued on Mar 22, 2013. Check the license (Texas Q4571, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639411150
Name
Ronald Chang
Credential
MD
Primary taxonomy
Vascular Surgery Physician 2086S0129X
License number
Q4571 TX
Self-reported in NPPES; status is on the state search
Practice location
4301 Vista RD, Pasadena, TX 77504
Phone
(832) 781-0000
Enumerated
Mar 22, 2013
Record last updated
Oct 6, 2022
Fax
(832) 781-1000
Medicare enrollment
Enrolled (PECOS I20241130000145); accepts Medicare assignment
Medical or professional school
Washington University School Of Medicine, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4301 Vista RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Robin Armer, CRNACertified Registered Nurse Anesthetist1790899417
  2. Emily Brown, R.D.Registered Dietitian1922440106
  3. Jami Damron, APRNNurse Practitioner1982366209
  4. Sonia Gornek, RD, LDRegistered Dietitian1720233851
  5. Xiao Li, M.D.Internal Medicine Physician1326069139
  6. Stephen Mason, CRNACertified Registered Nurse Anesthetist1376614792

Verify Ronald Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license Q4571
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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92% fewer Medicare Part D claims than the average vascular surgery physician in 2024

17 Medicare Part D claims for 12 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Ronald Chang17
  2. Specialty average201

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $28.91

1 payment: food and beverage; the largest payer was Ets Wound Care LLC. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ronald Chang$28.91
  2. Specialty average$6,178.00

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Advanced Surgeons And Physicians Network IncHouston, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ronald Chang among 368 vascular surgery physician records in Texas

Ronald Chang, MD is one of 368 vascular surgery physician records with a practice address in Texas. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 69% of them.

  • NPI issued2013 · 69% of these records are older, 27% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2013 · median 2004 among the 290 with a school on file
  • Record last updated2022 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular Surgery Physician providers in Texas

There are 368 vascular surgery physician records in Texas.

The 8 vascular surgery physician records with the nearest ZIP codes

  1. James OyeniyiPasadena, TX 775041144670936
  2. Naveed Saqib, MDPasadena, TX 775041033258041
  3. Shariq Zaidi, M.D.Pasadena, TX 775041518119072
  4. Stuart Harlin, M.D.Katy, TX 774941568435618
  5. Taylor Hicks, M.D.Katy, TX 774941982853750
  6. Kayla Isbell, MDKaty, TX 774941558715631
  7. Ulises Baltazar, MDSugar Land, TX 774791124048954
  8. Tony Lu, M.D.Sugar Land, TX 774791265876338

Common questions

What is Ronald Chang, MD's NPI number?

Ronald Chang, MD's National Provider Identifier (NPI) is 1639411150, issued on Mar 22, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Ronald Chang, MD located?

The NPPES record lists a practice address at 4301 Vista RD, Pasadena, TX, 77504. Phone: (832) 781-0000. Providers update this record themselves, so call before visiting.

How can I verify Ronald Chang, MD's license?

NPPES lists Texas license number Q4571, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ronald Chang, MD prescribe under Medicare Part D?

In 2024, Ronald Chang, MD had 17 Medicare Part D claims for 12 beneficiaries; the average among vascular surgery physician prescribers was 201. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.