Dr. Tony M. Chang, MD
- Medicare services, 2024
- 29
- Medicare patients, 2024
- 42
- Part D claims, 2024
- 43
- Hospital affiliations
- 2
- Industry payments
- $13,569
- Practice address
- 7887 N Cedar Ave, Fresno, CA 93720-2685
- Practice phone
- Call (559) 437-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fresno Cancer Center & Central Valley Breast Care
Multi-specialty group site · Fresno, California
Find Dr. Chang's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Tony M. Chang is a general surgeon in Fresno, California
Dr. Chang practices at Fresno Cancer Center & Central Valley Breast Care in Fresno, California.
Dr. Chang's NPI, 1164445896, was assigned on July 25, 2006. Dr. Chang graduated from George Washington University School of Medicine and Health Sciences in 2001. Dr. Chang holds California license A85797.
- NPI
- 1164445896NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9335142249
- NPI enumeration date
- July 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (559) 437-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tony M. Chang practices at Fresno Cancer Center & Central Valley Breast Care in Fresno, California
Dr. Chang's primary practice is Fresno Cancer Center & Central Valley Breast Care, at 7887 N Cedar Ave, Fresno, CA 93720-2685. The practice phone is (559) 437-1000.
- Fresno Cancer Center & Central Valley Breast Care7887 N Cedar Ave, Fresno, CA 93720-2685Phone(559) 437-1000
Source: Dmand AI Affiliation Data
Dr. Tony M. Chang is affiliated with 5 sites of care and 2 medical groups
Dr. Chang's primary practice is Fresno Cancer Center & Central Valley Breast Care in Fresno, California. Dr. Chang is also affiliated with Saint Agnes Medical Center. The medical group on file is SGMF Radiology. Dmand AI also links Dr. Chang to 1 more hospital, 1 physician office, 1 group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Tony M. Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fresno Cancer Center & Central Valley Breast Care | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tony M. Chang is one of 2,926 general surgeons in California
Surgery is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chang is board certified in surgery by the American Board of Surgery. Dr. Chang is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists gallbladder removal among the conditions Dr. Chang treats.
General surgeons near Dr. Chang
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Tony M. Chang billed Medicare for 29 services in 2024
CMS data shows 29 Medicare services from Dr. Chang across 2 procedure codes in 2024, all of them office visits, for 42 Medicare patients. Medicare paid $3,453 for them. Every service was in an office.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 182024: 2961%
Dr. Chang compared with the California median for general surgeons, 2024
- Dr. Chang
- California median
- Medicare services
- 29vs 16683% below
- Medicare patients
- 42vs 12165% below
- Part D claims
- 12vs 3465% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tony M. Chang treated 42 Medicare patients in 2024, average age 71
CMS counts 42 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 19 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 62% are also on Medicaid. Their average risk score is 1.21, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 54, with 75% women.
Dr. Chang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chang's Medicare patients by sex, 2024
- Women2969%
- Men1331%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes45%
- Arthritis43%
- Cancer31%
- Chronic kidney disease29%
- Ischemic heart disease29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women75%
- Men25%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Tony M. Chang wrote 43 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 43 Medicare Part D claims for 26 patients. 100% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $38 in total drug cost. In 2022, CMS named 64 claims across 3 drugs.
Dr. Chang's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Chang's Part D claims, 2024
- Opioids35%15 of 43 claims
- Antibiotics37%16 of 43 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 642024: 1281%
Drugs named by CMS: 1 in 2024, 3 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Tony M. Chang takes part in Medicare
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Coronary artery bypass graft (CABG): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Tony M. Chang received $13,569 in industry payments from 2017 to 2025
CMS Open Payments shows 65 general payments to Dr. Chang from 12 drug and device companies from 2017 to 2025. Education make up the largest share, 41% of the total. Intuitive Surgical, Inc. paid the most, $8,420.
General payments to Dr. Chang by program year, 2017 to 2025
General payments to Dr. Chang by kind, 2017 to 2025
- Education$5,50041%
- Travel and lodging$5,25239%
- Food and beverage$2,78321%
- Gifts$340%
Companies that paid Dr. Chang the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Tony M. Chang graduated from George Washington University School of Medicine and Health Sciences
Dr. Chang graduated from George Washington University School of Medicine and Health Sciences in 2001.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Tony M. Chang accepts plans from 16 insurance carriers
Dr. Chang is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +8 more carriersWith a free account
Plan types Dr. Chang accepts, by number of carriers
- PPO9
- Medicare8
- HMO7
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Tony M. Chang's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Tony M. Chang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Tony M. Chang's NPI number?
Dr. Tony M. Chang's NPI number is 1164445896. It was assigned on July 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Tony M. Chang?
Dr. Tony M. Chang is a general surgeon in Fresno, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Tony M. Chang practice?
Dr. Chang practices at 7887 N Cedar Ave, Fresno, CA 93720-2685. Dr. Chang's primary practice is Fresno Cancer Center & Central Valley Breast Care in Fresno, California. Dmand AI also links Dr. Chang to 1 hospital, 1 physician office, 1 group practice or clinic and 1 medical group.
What is Dr. Tony M. Chang's office phone number?
The practice phone on file for Dr. Chang is (559) 437-1000.
What is Dr. Tony M. Chang's medical license number?
Dr. Chang holds California license A85797.
Which hospitals is Dr. Tony M. Chang affiliated with?
Dr. Chang is affiliated with Saint Agnes Medical Center. Dmand AI links Dr. Chang to 1 more hospital.
What medical group is Dr. Tony M. Chang part of?
Dr. Chang is linked to SGMF Radiology. Dmand AI links Dr. Chang to 1 more medical group.
Does Dr. Tony M. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 29 services in 2024, and Dr. Chang accepts Medicare assignment.
How many Medicare patients does Dr. Tony M. Chang see?
CMS counts 42 Medicare patients who saw Dr. Chang in 2024, with an average age of 71.
Is Dr. Tony M. Chang board certified?
Yes. Dr. Chang is board certified in surgery by the American Board of Surgery.
Show 6 more questionsShow fewer questions
What services does Dr. Tony M. Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were office visit, new patient (99205) and office visit, new patient (99204).
Where did Dr. Tony M. Chang go to medical school?
Dr. Chang graduated from George Washington University School of Medicine and Health Sciences in 2001.
What drugs does Dr. Tony M. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Tony M. Chang received payments from drug or device companies?
CMS Open Payments shows $13,569 in general payments to Dr. Chang from 12 companies from 2017 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Tony M. Chang been practicing?
Dr. Chang graduated from medical school in 2001, 25 years ago.
What insurance does Dr. Tony M. Chang accept?
Dr. Chang is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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