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Dr. Steven T. Chang, MD
NPI1205048436PAC ID0345418596
- Medicare services, 2024
- 775
- Medicare patients, 2024
- 320
- Part D claims, 2024
- 99
- Publications
- 1
- MIPS score, 2024
- 81
- Practice address
- 31872 Coast Hwy, Laguna Beach, CA 92651
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mission Hospital - Mission Hospital Laguna Beach - Cardiology - HOPD
Acute Care Hospital outpatient department · Laguna Beach, California
Find Dr. Chang's professional email, personal email and mobile number
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Dr. Steven T. Chang is a general surgeon in Laguna Beach, California
Dr. Chang practices at Mission Hospital - Mission Hospital Laguna Beach - Cardiology - HOPD in Laguna Beach, California.
Dr. Chang's NPI, 1205048436, was assigned on May 3, 2007. Dr. Chang graduated from New York University School of Medicine in 1993. Dr. Chang's California license number on file is WG84402B.
NPI and contact details
- NPI
- 1205048436NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345418596
- NPI enumeration date
- May 3, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steven T. Chang practices at Mission Hospital - Mission Hospital Laguna Beach - Cardiology - HOPD in Laguna Beach, California
Dr. Chang's primary practice is Mission Hospital - Mission Hospital Laguna Beach - Cardiology - HOPD, at 31872 Coast Hwy, Laguna Beach, CA 92651.
- Mission Hospital - Mission Hospital Laguna Beach - Cardiology - HOPD31872 Coast Hwy, Laguna Beach, CA 92651
Source: Dmand AI Affiliation Data
Dr. Steven T. Chang is affiliated with 3 sites of care and 1 medical group
Dr. Chang's primary practice is Mission Hospital - Mission Hospital Laguna Beach - Cardiology - HOPD in Laguna Beach, California. Dr. Chang is also affiliated with Providence Mission Hospital. The medical group on file is Surgical Group of South Laguna. Dmand AI also links Dr. Chang to 1 more group practice or clinic, named with a free account.
Mission Hospital - Mission Hospital Laguna Beach - Cardiology - HOPDPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Steven T. 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 |
|---|---|
| Mission Hospital - Mission Hospital Laguna Beach - Cardiology - HOPD | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Steven T. 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. Dmand AI has Dr. Chang's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, appendectomy, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal, gastrointestinal bleeding and groin hernia surgery 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.
2,926general surgeons in California
2general surgeons in Laguna Beach
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Steven T. Chang billed Medicare for 775 services in 2024
CMS data shows 775 Medicare services from Dr. Chang across 17 procedure codes in 2024, for 320 Medicare patients. Medicare paid $181,133 for them.
Medicare services, 2024775
Medicare patients320
Paid by Medicare$181,133
Procedure codes17
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5482024: 5745%
- Surgery
- 2023: 1482024: 20136%
Where Dr. Chang's Medicare services took place, 2024
- In an office60278%
- In a facility17322%
Dr. Chang compared with the California median for general surgeons, 2024
- Dr. Chang
- California median
- Medicare services
- 775vs 1664.7 times
- Medicare patients
- 320vs 1212.6 times
- Part D claims
- 55vs 3462% above
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.
Need commercial claims for Dr. Chang?
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. Steven T. Chang treated 320 Medicare patients in 2024, average age 76
CMS counts 320 Medicare patients who saw Dr. Chang in 2024. The largest group is 75 to 84, with 155 patients. 75% of them have high cholesterol, and 65% have high blood pressure. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 71, with 45% women.
Medicare patients, 2024320
Average age76
Average risk score1.15
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
- Women13241%
- Men18859%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High cholesterol75%
- High blood pressure65%
- Arthritis48%
- Ischemic heart disease26%
- Atrial fibrillation24%
- Cancer22%
- Mood disorders20%
- Chronic kidney disease19%
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 71
Patient panel by sex, all payers
- Women45%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Steven T. Chang wrote 99 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 99 Medicare Part D claims for 64 patients. 92% of them were for generic drugs. CMS names the drug for 55 of them, across 2 drugs with 11 or more claims each, at $111 in total drug cost. In 2023, CMS named 44 claims across 1 drug.
Part D claims, 202499
Drugs named by CMS2
Total drug cost$111
Part D patients64
Dr. Chang's Part D claims by kind of drug, 2024
- Generic91 claims92%
- Brand-name and other8 claims8%
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
- Opioids58%57 of 99 claims
- Antibiotics23%23 of 99 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 442024: 5525%
Drugs named by CMS: 2 in 2024, 1 in 2023.
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. Steven T. Chang scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 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 counts 128 procedures of melanoma (skin cancer) excision by Dr. Chang, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Chang's MIPS scores, performance year 2024
- 81of 100Final score
- 75.1of 100Quality
- 83of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 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
- Melanoma (skin cancer) excision
- 95th percentile128 procedures
- Hernia repair (minimally invasive)
- 75th 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)
Removal of tissue: 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. Steven T. Chang has 1 publication on record
Dmand AI links 1 paper to Dr. Chang in 2015. Dr. Chang's most frequent co-authors are Steven Daniel Chang, MD, Tanya M. Ellman, MD and Kellie L. Hawkins, MD.
Papers1
Dr. Chang's most frequent co-authors
- Steven Daniel Chang, MD1 shared paper
- Tanya M. Ellman, MD1 shared paper
- Kellie L. Hawkins, MD1 shared paper
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 general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Steven T. Chang received $22,507 in industry payments from 2016 to 2025
CMS Open Payments shows 96 general payments to Dr. Chang from 16 drug and device companies from 2016 to 2025. Education make up the largest share, 58% of the total. Intuitive Surgical, Inc. paid the most, $20,211.
General payments to Dr. Chang by program year, 2016 to 2025
General payments to Dr. Chang by kind, 2016 to 2025
$22.5Kin total
- Education$13,01658%
- Travel and lodging$4,74121%
- Food and beverage$4,38019%
- Consulting fees$3702%
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. Steven T. Chang has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Chang, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Chang
- 2011
- CMS Stage 1 2012
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Steven T. Chang graduated from New York University School of Medicine
Dr. Chang graduated from New York University School of Medicine in 1993. Dr. Chang is a member of ACS.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Steven T. Chang accepts plans from 11 insurance carriers
Dr. Chang is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- +3 more carriersWith a free account
Plan types Dr. Chang accepts, by number of carriers
- Medicare9
- PPO7
- HMO6
- POS5
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Steven T. 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)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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Steven T. 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. Steven T. Chang's NPI number?
Dr. Steven T. Chang's NPI number is 1205048436. It was assigned on May 3, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven T. Chang?
Dr. Steven T. Chang is a general surgeon in Laguna Beach, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Steven T. Chang practice?
Dr. Chang practices at 31872 Coast Hwy, Laguna Beach, CA 92651. Dr. Chang's primary practice is Mission Hospital - Mission Hospital Laguna Beach - Cardiology - HOPD in Laguna Beach, California. Dmand AI also links Dr. Chang to 1 group practice or clinic.
What is Dr. Steven T. Chang's medical license number?
Dr. Chang's California license number on file is WG84402B, one of the licenses on file in 2 states.
Which states has Dr. Steven T. Chang been licensed in?
Dmand AI has state licenses on file for Dr. Chang in California (1998 to 2025) and Pennsylvania (1994 to 1998).
Which hospitals is Dr. Steven T. Chang affiliated with?
Dr. Chang is affiliated with Providence Mission Hospital.
What medical group is Dr. Steven T. Chang part of?
Dr. Chang is linked to Surgical Group of South Laguna.
Does Dr. Steven T. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 775 services in 2024, and Dr. Chang accepts Medicare assignment.
What is Dr. Steven T. Chang's MIPS score?
Dr. Chang's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
How many Medicare patients does Dr. Steven T. Chang see?
CMS counts 320 Medicare patients who saw Dr. Chang in 2024, with an average age of 76.
Show 9 more questionsShow fewer questions
Is Dr. Steven T. Chang board certified?
Yes. Dr. Chang is board certified in surgery by the American Board of Surgery.
What services does Dr. Steven T. Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99232) and office visit, new patient (99203).
Where did Dr. Steven T. Chang go to medical school?
Dr. Chang graduated from New York University School of Medicine in 1993.
What drugs does Dr. Steven T. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Tramadol HCl and Hydrocodone-Acetaminophen.
Has Dr. Steven T. Chang received payments from drug or device companies?
CMS Open Payments shows $22,507 in general payments to Dr. Chang from 16 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Steven T. Chang been practicing?
Dr. Chang graduated from medical school in 1993, 33 years ago.
Does Dr. Steven T. Chang do research?
Dmand AI links 1 publication to Dr. Chang.
Who does Dr. Steven T. Chang publish with?
Dr. Chang's most frequent co-authors are Steven Daniel Chang, MD (1 shared paper), Tanya M. Ellman, MD (1 shared paper) and Kellie L. Hawkins, MD (1 shared paper).
What insurance does Dr. Steven T. Chang accept?
Dr. Chang is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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