Tony M. Chang, M.D.
Surgery Physician · Lodi, CA
Tony M. Chang, M.D. is a surgery physician with a practice address in Lodi, California, and NPI 1164445896, issued on Jul 25, 2006. Check the license (California A85797, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tony M. Chang
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- A85797 CA
Self-reported in NPPES; status is on the state search - Practice location
- 801 S Ham LN Ste E, Lodi, CA 95242
- Phone
- (209) 333-1441
- Enumerated
- Jul 25, 2006
- Record last updated
- Jul 16, 2024
- Fax
- (209) 333-1476
- Medicare enrollment
- Enrolled (PECOS I20060815000314); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Verify Tony M. Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A85797Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average surgery physician in 2024
43 Medicare Part D claims for 26 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 15 claims were for opioids.
Most prescribed
- Oxycodone Hcl12 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): 96.5 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: $3,691.59
33 payments; by number, the most common kind was food and beverage; the largest payer was Davol 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 one group practice
- Cancer Therapy Medical Group IncFresno, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
Other surgery physician records in California
- Miriam Abaunza, M.D.Los Angeles, CA1538470778
- Hana Abdirahman, MDTemecula, CA1265288112
- Sherwin Abdoli, MDPetaluma, CA1508386442
- Mhdshafic Abdulkarim, MDOrange, CA1750174249
- Sarah Abdulla, M.D.Baldwin Park, CA1699200840
- Shoko Abe, M.D.Berkeley, CA1609178136
- Stuart Abel, M.D.Los Angeles, CA1750761516
- Elliot Abemayor, MDLos Angeles, CA1972527414
- Marc Abi Karam, MD, MSPalo Alto, CA1437846508
- Ali Abidali, DOGlendora, CA1861888794
Common questions
What is Tony M. Chang, M.D.'s NPI number?
Tony M. Chang, M.D.'s National Provider Identifier (NPI) is 1164445896, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tony M. Chang, M.D. located?
The NPPES record lists a practice address at 801 S Ham LN Ste E, Lodi, CA, 95242. Phone: (209) 333-1441. Providers update this record themselves, so call before visiting.
How can I verify Tony M. Chang, M.D.'s license?
NPPES lists California license number A85797, 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 Tony M. Chang, M.D. prescribe under Medicare Part D?
In 2024, Tony M. Chang, M.D. had 43 Medicare Part D claims for 26 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Tony M. Chang, M.D.'s MIPS final score?
The 2023 MIPS final score is 96.5 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.