Aimee Chang, MD
Ophthalmology Physician · Freedom, CA
Aimee Chang, MD is an ophthalmology physician with a practice address in Freedom, California, and NPI 1730689340, issued on Feb 20, 2018. Check the license (California A165520, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Aimee Chang
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- A165520 CA
291480 MA
Self-reported in NPPES; status is on the state search - Practice location
- 160 Green Valley RD Ste 202, Freedom, CA 95019
- Phone
- (831) 728-2020
- Enumerated
- Feb 20, 2018
- Entity
- Type 1 · individual
Verify Aimee Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A165520Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
61% more Medicare Part D claims than the average ophthalmology physician in 2024
2,403 Medicare Part D claims for 666 beneficiaries, against an average of 1,490 among the 16,109 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.
Most prescribed
- Latanoprost694 claims
- Dorzolamide-Timolol289 claims
- Timolol Maleate254 claims
- Prednisolone Acetate200 claims
- Brimonidine Tartrate180 claims
- Rocklatan86 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.
Industry payments in 2024: $883.53
26 payments, mostly food and beverage; the largest payer was Alcon Vision LLC. The 12,922 providers of this specialty with any payment received $4,937.17 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.
One hospital or facility affiliation
- Spectrum Eye Physicians A Medical CorporationSanta Cruz, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
5 ophthalmology physician records list a Freedom practice address
They are 5 of the 90 NPPES records with a Freedom practice address, and 2,888 ophthalmology physician records in California.
All 5 in Freedom → All 2,888 in California → Every provider in Freedom →
Other ophthalmology physician records in California
- Sam Abbassi, MD, MSWest Hills, CA1881937720
- Richard Abbott, M.D.San Francisco, CA1346276573
- Nizar Abdelfattah, MDPasadena, CA1801359393
- Parastou Abedi, MDAliso Viejo, CA1720067333
- Shahla Abedi, MDAliso Viejo, CA1467431072
- Lilit Ablabutyan, M.D.Glendale, CA1497013064
- Thomas Ableman, M.D.San Diego, CA1558415067
- Nathan Abraham, M.D.Valencia, CA1306224456
- James Abrams, M.D.San Bruno, CA1912903329
- Adam Abroms, MDWestlake Village, CA1497743702
Common questions
What is Aimee Chang, MD's NPI number?
Aimee Chang, MD's National Provider Identifier (NPI) is 1730689340, issued on Feb 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Aimee Chang, MD located?
The NPPES record lists a practice address at 160 Green Valley RD Ste 202, Freedom, CA, 95019. Phone: (831) 728-2020. Providers update this record themselves, so call before visiting.
How can I verify Aimee Chang, MD's license?
NPPES lists California license number A165520, 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 Aimee Chang, MD prescribe under Medicare Part D?
In 2024, Aimee Chang, MD had 2,403 Medicare Part D claims for 666 beneficiaries; the average among ophthalmology physician prescribers was 1,490. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.