Chia-Wen Annie Chang, M.D.
Ophthalmology Physician · Visalia, CA
Chia-Wen Annie Chang, M.D. is an ophthalmology physician with a practice address in Visalia, California, and NPI 1417210451, issued on Jun 22, 2012. Check the license (California A142555, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chia-Wen Annie Chang
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A142555 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5021 W Noble Ave, Visalia, CA 93277
- Phone
- (559) 627-9393
- Enumerated
- Jun 22, 2012
- Record last updated
- Jul 18, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (559) 627-1624
- Medicare enrollment
- Enrolled (PECOS I20160727002544); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2012
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 5021 W Noble Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Boone, M.D.Ophthalmology Physician1467494203
- Allen Denison, O.D.Optometrist1205876190
- Michael Henry, MDOphthalmology Physician1689644817
- Judith Ransberger, O.D.Optometrist1578501532
- Laura Rodriguez, ODOptometrist1700485133
- Barry Smith, M.D.Ophthalmology Physician1548200488
Verify Chia-Wen Annie Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A142555Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% more Medicare Part D claims than the average ophthalmology physician in 2024
1,765 Medicare Part D claims for 402 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims. 19 claims were for opioids.
Most prescribed
- Latanoprost511 claims
- Dorzolamide-Timolol248 claims
- Prednisolone Acetate174 claims
- Timolol Maleate146 claims
- Erythromycin96 claims
- Lumigan87 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 MIPS final score for 2023 (Medicare payment program): 78.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $522.39
11 payments; by number, the most common kind was food and beverage; the largest payer was Glaukos Corporation. The 13,221 providers of this specialty with any payment received $4,535.02 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 one group practice
- Eye Surgical And Medical Associates, Inc.Visalia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chia-Wen Annie Chang among 2,899 ophthalmology physician records in California
Chia-Wen Annie Chang, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% 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 78% of them.
- NPI issued2012 · 78% of these records are older, 20% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2012 · median 2001 among the 1,907 with a school on file
- Record last updated2016 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Visalia → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Michael Boone, M.D.Visalia, CA 932771467494203
- Michael Henry, MDVisalia, CA 932771689644817
- Barry Smith, M.D.Visalia, CA 932771548200488
- Murad Sunalp, M.D.Tulare, CA 932741861586836
- Steven Cantrell, M.D.Visalia, CA 932911861431413
- David Feil, M.D.Visalia, CA 932911164427597
- Stanley Feil, M.D.Visalia, CA 932911942205240
- Matthew Kirkman, M.D.Visalia, CA 932911457545774
Common questions
What is Chia-Wen Annie Chang, M.D.'s NPI number?
Chia-Wen Annie Chang, M.D.'s National Provider Identifier (NPI) is 1417210451, issued on Jun 22, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Chia-Wen Annie Chang, M.D. located?
The NPPES record lists a practice address at 5021 W Noble Ave, Visalia, CA, 93277. Phone: (559) 627-9393. Providers update this record themselves, so call before visiting.
How can I verify Chia-Wen Annie Chang, M.D.'s license?
NPPES lists California license number A142555, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chia-Wen Annie Chang, M.D. prescribe under Medicare Part D?
In 2024, Chia-Wen Annie Chang, M.D. had 1,765 Medicare Part D claims for 402 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Chia-Wen Annie Chang, M.D.'s MIPS final score?
The 2023 MIPS final score is 78.2 of 100. 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.