Dr. Jeff K. Chang, MD
- Medicare services, 2024
- 103
- Medicare patients, 2024
- 97
- Part D claims, 2024
- 29
- Publications
- 1
- MIPS score, 2024
- 93
- Practice address
- 1500 Duarte Rd, Duarte, CA 91010
- Practice phone
- Call (800) 826-4673
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
City of Hope Comprehensive Cancer Center - Duarte
Duarte, 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. Jeff K. Chang is a plastic surgeon in Duarte, California
Dr. Chang practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.
Dr. Chang's NPI, 1184862021, was assigned on January 30, 2009. Dr. Chang graduated from Medical College Of Wisconsin in 2008. Dr. Chang holds California license A133565.
- NPI
- 1184862021NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830423383
- NPI enumeration date
- January 30, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (800) 826-4673
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jeff K. Chang practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California
Dr. Chang's primary practice is City of Hope Comprehensive Cancer Center - Duarte, at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (800) 826-4673.
- City of Hope Comprehensive Cancer Center - Duarte1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(800) 826-4673
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jeff K. Chang is affiliated with 4 sites of care and 1 medical group
Dr. Chang's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dr. Chang is also affiliated with Sutter Medical Center, Sacramento. The medical group on file is City of Hope. Dmand AI also links Dr. Chang to 1 more hospital and 1 other site, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jeff K. Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| City of Hope Comprehensive Cancer Center - Duarte | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jeff K. Chang is one of 778 plastic surgeons in California
Plastic surgery is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 208200000X. Dr. Chang is board certified in plastic surgery by the American Board of Plastic Surgery. Dmand AI has Dr. Chang's licenses on file in 2 states: California and Washington.
Specialties and state licenses
- Plastic surgery, CaliforniaPrimary
- Washington license
Clinical focus
Dmand AI lists breast reconstruction, lymphedema and removal of damaged skin or skin graft among the conditions Dr. Chang treats.
Plastic surgeons near Dr. Chang
Counts of plastic 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. Jeff K. Chang billed Medicare for 103 services in 2024
CMS data shows 103 Medicare services from Dr. Chang across 4 procedure codes in 2024, for 97 Medicare patients. Medicare paid $18,391 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 932024: 903%
- Surgery
- 2023: 02024: 13
Dr. Chang compared with the California median for plastic surgeons, 2024
- Dr. Chang
- California median
- Medicare services
- 103vs 5878% above
- Medicare patients
- 97vs 5964% above
- Part D claims
- 23vs 2612% below
Medians across 622 plastic 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.
Need commercial claims for Dr. Chang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other plastic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jeff K. Chang treated 97 Medicare patients in 2024, average age 68
CMS counts 97 Medicare patients who saw Dr. Chang in 2024. The largest group is 65 to 74, with 56 patients. 75% of them have cancer, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 1.65, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 58, with 95% women.
Dr. Chang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Chang's Medicare patients, 2024
- Cancer75%
- High cholesterol75%
- High blood pressure64%
- Arthritis52%
- Osteoporosis31%
- Diabetes30%
- Mood disorders28%
- Anxiety25%
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 58
Patient panel by sex, all payers
- Women95%
- Men5%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jeff K. Chang wrote 29 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 29 Medicare Part D claims for 16 patients. 100% of them were for generic drugs. CMS names the drug for 23 of them, across 2 drugs with 11 or more claims each, at $264 in total drug cost. In 2016, CMS named 18 claims across 1 drug.
Dr. Chang's most prescribed drugs by claims, 2023
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
- Antibiotics48%14 of 29 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, 2016 to 2023
- 2016
- 2023
- Claims for drugs CMS names
- 2016: 182023: 2328%
Drugs named by CMS: 2 in 2023, 1 in 2016.
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
Dr. Jeff K. Chang scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Chang for performance year 2024, reported as part of a group. Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chang as offering telehealth. CMS counts 38 procedures of mastectomy by Dr. Chang, more than 91% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Chang's MIPS scores, performance year 2024
- 93of 100Final score
- 78.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Chang ranks in Medicare procedure volume
- Mastectomy
- 91st percentile38 procedures
- Removal of tissue
- 73rd percentile28 procedures
- Melanoma (skin cancer) excision
- 66th percentile12 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jeff K. Chang has 1 publication on record
Dmand AI links 1 paper to Dr. Chang in 2010.
Recent publications by Dr. Chang
See who Dr. Chang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chang works with, so you can find a warm path to the right plastic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jeff K. Chang received $16,987 in industry payments from 2016 to 2025
CMS Open Payments shows 98 general payments to Dr. Chang from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 46% of the total. TELA Bio, Inc. paid the most, $5,486.
General payments to Dr. Chang by program year, 2016 to 2025
General payments to Dr. Chang by kind, 2016 to 2025
- Food and beverage$7,87746%
- Travel and lodging$5,60133%
- Honoraria$2,30014%
- Consulting fees$1,2097%
Companies that paid Dr. Chang the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jeff K. Chang graduated from Medical College Of Wisconsin
Dr. Chang graduated from Medical College Of Wisconsin in 2008.
- Medical school
- Board certified in plastic surgery
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Jeff K. Chang accepts plans from 12 insurance carriers
Dr. Chang is in network with 12 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Massachusetts. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Regence Health Plans
- Alliant Health Plans
- +4 more carriersWith a free account
Plan types Dr. Chang accepts, by number of carriers
- PPO8
- Medicare7
- HMO5
- EPO2
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Jeff K. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Jeff K. 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. Jeff K. Chang's NPI number?
Dr. Jeff K. Chang's NPI number is 1184862021. It was assigned on January 30, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Jeff K. Chang?
Dr. Jeff K. Chang is a plastic surgeon in Duarte, California. The primary specialty in the NPI Registry is Plastic Surgery Physician (taxonomy code 208200000X).
Where does Dr. Jeff K. Chang practice?
Dr. Chang practices at 1500 Duarte Rd, Duarte, CA 91010. Dr. Chang's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Dr. Chang to 1 hospital and 1 other site.
What is Dr. Jeff K. Chang's office phone number?
The practice phone on file for Dr. Chang is (800) 826-4673.
What is Dr. Jeff K. Chang's medical license number?
Dr. Chang holds California license A133565, one of the licenses on file in 2 states.
Which states has Dr. Jeff K. Chang been licensed in?
Dmand AI has state licenses on file for Dr. Chang in California (2014 to 2026) and Washington (2010 to 2013).
Which hospitals is Dr. Jeff K. Chang affiliated with?
Dr. Chang is affiliated with Sutter Medical Center, Sacramento. Dmand AI links Dr. Chang to 1 more hospital.
What medical group is Dr. Jeff K. Chang part of?
Dr. Chang is linked to City of Hope.
Does Dr. Jeff K. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 103 services in 2024, and Dr. Chang accepts Medicare assignment.
Does Dr. Jeff K. Chang offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chang as offering telehealth services.
Show 10 more questionsShow fewer questions
What is Dr. Jeff K. Chang's MIPS score?
Dr. Chang's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. Jeff K. Chang see?
CMS counts 97 Medicare patients who saw Dr. Chang in 2024, with an average age of 68.
Is Dr. Jeff K. Chang board certified?
Yes. Dr. Chang is board certified in plastic surgery by the American Board of Plastic Surgery.
What services does Dr. Jeff K. Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99205) and office visit, established patient (99215).
Where did Dr. Jeff K. Chang go to medical school?
Dr. Chang graduated from Medical College Of Wisconsin in 2008.
What drugs does Dr. Jeff K. Chang prescribe most?
In 2023 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Cefadroxil.
Has Dr. Jeff K. Chang received payments from drug or device companies?
CMS Open Payments shows $16,987 in general payments to Dr. Chang from 24 companies from 2016 to 2025. The largest total came from TELA Bio, Inc.
How long has Dr. Jeff K. Chang been practicing?
Dr. Chang graduated from medical school in 2008, 18 years ago.
Does Dr. Jeff K. Chang do research?
Dmand AI links 1 publication to Dr. Chang.
What insurance does Dr. Jeff K. Chang accept?
Dr. Chang is in network with 12 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Massachusetts. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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