Vanessa Loo Chang, O.D.
Optometrist · McAllen, TX
Vanessa Loo Chang, O.D. is an optometrist with a practice address in McAllen, Texas, and NPI 1386869451, issued on Apr 16, 2007. Check the license (Texas 2733T, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Vanessa Loo Chang
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 2733T TX
Self-reported in NPPES; status is on the state search - Practice location
- 318 W Nolana Ave, McAllen, TX 78504
- Phone
- (956) 664-0444
- Enumerated
- Apr 16, 2007
- Record last updated
- May 16, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (956) 664-0446
- Medicaid ID
- 037005801 TX
- Medicare enrollment
- Enrolled (PECOS I20120531000103); accepts Medicare assignment
- Medical or professional school
- University Of Houston - College Of Optometry, 1980
- Entity
- Type 1 · individual
8 nearest optometrist records → All 5,006 in Texas → Look up another NPI →
Verify Vanessa Loo Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 2733TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average optometrist in 2024
20 Medicare Part D claims for 13 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
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: $344.35
6 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 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.
Vanessa Loo Chang among 5,006 optometrist records in Texas
Vanessa Loo Chang, O.D. is one of 5,006 optometrist records with a practice address in Texas. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.
- NPI issued2007 · 35% of these records are older, 55% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1980 · median 2010 among the 2,894 with a school on file
- Record last updated2012 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 optometrist records list a practice address in McAllen
They are 39 of the 3,518 NPPES records with a practice address in McAllen, and 5,006 optometrist records in Texas.
All 5,006 in Texas → Every provider in McAllen → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Kriselda Alvarado, O.D.McAllen, TX 785041912961020
- Nicholas Antoni, O.D.McAllen, TX 785041548390727
- Stephanie Avendano, ODMcAllen, TX 785041972348498
- Melissa Banuelos, ODMcAllen, TX 785041184461907
- William Bieker, O.D.McAllen, TX 785041508964032
- Yvonne Diaz, O.D.McAllen, TX 785041306828041
- Diana Fuentes, ODMcAllen, TX 785041588731632
- Felipe Gutierrez, ODMcAllen, TX 785041265301170
Common questions
What is Vanessa Loo Chang, O.D.'s NPI number?
Vanessa Loo Chang, O.D.'s National Provider Identifier (NPI) is 1386869451, issued on Apr 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Vanessa Loo Chang, O.D. located?
The NPPES record lists a practice address at 318 W Nolana Ave, McAllen, TX, 78504. Phone: (956) 664-0444. Providers update this record themselves, so call before visiting.
How can I verify Vanessa Loo Chang, O.D.'s license?
NPPES lists Texas license number 2733T, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Vanessa Loo Chang, O.D. prescribe under Medicare Part D?
In 2024, Vanessa Loo Chang, O.D. had 20 Medicare Part D claims for 13 beneficiaries; the average among optometrist prescribers was 277. 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.