Alex L. Chang, MD
Surgery Physician · Houston, TX
Alex L. Chang, MD is a surgery physician with a practice address in Houston, Texas, and NPI 1578820015, issued on Apr 23, 2012. Check the license (Texas W1398, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Alex L. Chang
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License numbers
- W1398 TX
35.133496 OH
Self-reported in NPPES; status is on the state search - Practice location
- 6411 Fannin St, Houston, TX 77030
- Phone
- (713) 704-4000
- Enumerated
- Apr 23, 2012
- Record last updated
- Jan 7, 2026
- Medicare enrollment
- Enrolled (PECOS I20210528001456); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 2,192 in Texas → Look up another NPI →
Also registered at 6411 Fannin St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Muhammad Abdullah, CAAAnesthesiologist Assistant1053295154
- Nora AbifarajPharmacist1073435855
- Doha Aboul-FotouhPediatrics Physician1891255691
- Rodeo Abrencillo, M.D.Critical Care Medicine (Internal Medicine) Physician1164716635
Verify Alex L. Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license W1398Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average surgery physician in 2024
128 Medicare Part D claims for 31 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.
Most prescribed
- Sulfamethoxazole-Trimethoprim13 claims
- Valganciclovir Hcl11 claims
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 78.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,670.02
12 payments; by number, the most common kind was travel and lodging; the largest payer was Intuitive Surgical, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- University OF Cincinnati Physicians Company LLCCincinnati, OH
- UT PhysiciansHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alex L. Chang among 2,192 surgery physician records in Texas
Alex L. Chang, MD is one of 2,192 surgery physician records with a practice address in Texas. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 68% of them.
- NPI issued2012 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2012 · median 2004 among the 1,350 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Texas
There are 2,192 surgery physician records in Texas.
All 2,192 in Texas → Every provider in Houston → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Richard Andrassy, M.D.Houston, TX 770301184665820
- Barbara Bass, M.D., F.A.C.SHouston, TX 770301881632636
- Richard Caplan, M.D.Houston, TX 770301831170166
- Richard Geis, M.D.Houston, TX 770301891756532
- Steven HammermanHouston, TX 770301649268236
- Samer Mattar, MDHouston, TX 770301861466708
- Hemangshu Podder, M.D.Houston, TX 770301407885163
- Patrick Reardon, MDHouston, TX 770301649270265
Common questions
What is Alex L. Chang, MD's NPI number?
Alex L. Chang, MD's National Provider Identifier (NPI) is 1578820015, issued on Apr 23, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Alex L. Chang, MD located?
The NPPES record lists a practice address at 6411 Fannin St, Houston, TX, 77030. Phone: (713) 704-4000. Providers update this record themselves, so call before visiting.
How can I verify Alex L. Chang, MD's license?
NPPES lists Texas license number W1398, 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 Alex L. Chang, MD prescribe under Medicare Part D?
In 2024, Alex L. Chang, MD had 128 Medicare Part D claims for 31 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Alex L. Chang, MD's MIPS final score?
The 2023 MIPS final score is 78.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.