Catherine Chang, M.D.
Specialist · Newport Beach, CA
Catherine Chang, M.D. is a specialist with a practice address in Newport Beach, California, and NPI 1295766426, issued on Jul 5, 2006. Check the license (California G68516, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine Chang
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- G68516 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1401 Avocado Ave, Newport Beach, CA 92660
- Phone
- (949) 717-6755
- Enumerated
- Jul 5, 2006
- Record last updated
- Aug 18, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (949) 717-6859
- Medicare enrollment
- Enrolled (PECOS I20100223000375); may accept Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 1401 Avocado Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G68516Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average specialist in 2024
4,014 Medicare Part D claims for 269 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 59 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium254 claims
- Amlodipine Besylate200 claims
- Atorvastatin Calcium145 claims
- Synthroid132 claims
- Escitalopram Oxalate131 claims
- Losartan Potassium115 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): 7.8 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: $58.29
3 payments; by number, the most common kind was food and beverage; the largest payer was Ethicon US, LLC. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Catherine Chang among 5,749 specialist records in California
Catherine Chang, M.D. is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1988 · median 1989 among the 1,075 with a school on file
- Record last updated2017 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
53 specialist records list a practice address in Newport Beach
They are 53 of the 4,414 NPPES records with a practice address in Newport Beach, and 5,749 specialist records in California.
All 5,749 in California → Every provider in Newport Beach → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Joseph Apostol, M.D.Newport Beach, CA 926601891877015
- Gerald Gostanian, MDNewport Beach, CA 926601851491567
- David Herzlinger, M.D.Newport Beach, CA 926601891785465
- Mark Kan, M.D.Newport Beach, CA 926601336171446
- Ayoub Khaghani, MDNewport Beach, CA 926601922087394
- Yang Kim, M.D.Newport Beach, CA 926601477553667
- Gene Lawrence, M.D.Newport Beach, CA 926601730269879
- John Leary, M.D.Newport Beach, CA 926601891889606
Common questions
What is Catherine Chang, M.D.'s NPI number?
Catherine Chang, M.D.'s National Provider Identifier (NPI) is 1295766426, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Chang, M.D. located?
The NPPES record lists a practice address at 1401 Avocado Ave, Newport Beach, CA, 92660. Phone: (949) 717-6755. Providers update this record themselves, so call before visiting.
How can I verify Catherine Chang, M.D.'s license?
NPPES lists California license number G68516, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Catherine Chang, M.D. prescribe under Medicare Part D?
In 2024, Catherine Chang, M.D. had 4,014 Medicare Part D claims for 269 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Catherine Chang, M.D.'s MIPS final score?
The 2023 MIPS final score is 7.8 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.