Dr. David K. Chang, MD
- Medicare services, 2019
- 1,362
- Part D claims, 2019
- 201
- Hospital affiliations
- 1
- Industry payments
- $720
- Medical groups
- 2
- Practice address
- 801 South Washington, Naperville, IL 60540
- Practice phone
- Call (630) 527-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chang's professional email, personal email and mobile number
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Dr. David K. Chang is an orthopedic surgeon in Naperville, Illinois
Dr. Chang practices at Edward Hospital in Naperville, Illinois, part of Endeavor Health.
Dr. Chang's NPI, 1013907062, was assigned on October 21, 2005. Dr. Chang graduated from University of Michigan Medical School in 1981. Dr. Chang holds Illinois license 036064629.
- NPI
- 1013907062NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133025521
- NPI enumeration date
- October 21, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (630) 527-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David K. Chang practices at Edward Hospital in Naperville, Illinois
Dr. Chang's primary practice is Edward Hospital, at 801 South Washington, Naperville, IL 60540 in Du Page County. The practice phone is (630) 527-3000.
- Edward Hospital801 South Washington, Naperville, IL 60540 · Du Page CountyPhone(630) 527-3000
Source: Dmand AI Affiliation Data
Dr. David K. Chang is affiliated with 3 sites of care and 2 medical groups
Dr. Chang's primary practice is Edward Hospital in Naperville, Illinois, part of Endeavor Health. The medical group on file is Lawndale Christian Health Center. Dmand AI also links Dr. Chang to 1 more community health center, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David 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 |
|---|---|
| Edward Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David K. Chang is one of 849 orthopedic surgeons in Illinois
Orthopaedic surgery is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Chang is licensed in Illinois.
Specialties and state licenses
- Orthopaedic surgery, IllinoisPrimary
Orthopedic surgeons near Dr. Chang
Counts of orthopedic 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. David K. Chang billed Medicare for 1,362 services in 2019
CMS data shows 1,362 Medicare services from Dr. Chang across 11 procedure codes in 2019. Medicare paid $172,408 for them.
Dr. Chang's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 5952019: 37537%
- Drugs given in the office
- 2018: 4722019: 35625%
- Surgery
- 2018: 3972019: 32518%
- Imaging
- 2018: 4322019: 29532%
- Other services
- 2018: 02019: 11
Where Dr. Chang's Medicare services took place, 2019
- In an office1,27994%
- In a facility836%
Dr. Chang compared with the Illinois median for orthopedic surgeons, 2019
- Dr. Chang
- Illinois median
- Medicare services
- 1,362vs 1,2509% above
- Part D claims
- 201vs 12068% above
Medians across 741 orthopedic surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2019
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 orthopedic surgeons in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David K. Chang's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 70, with 53% women.
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 70
Patient panel by sex, all payers
- Women53%
- Men47%
Source: Dmand AI Patient Panel Data
Dr. David K. Chang wrote 201 Medicare Part D claims in 2019
In 2019, Dr. Chang wrote 201 Medicare Part D claims. They cover 4 drugs, with $2,092 in total drug cost. In 2018, CMS named 213 claims across 5 drugs.
Dr. Chang's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 2132019: 2016%
Drugs named by CMS: 4 in 2019, 5 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. David K. Chang takes part in Medicare
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David K. Chang received $720 in industry payments from 2016 to 2024
CMS Open Payments shows 13 general payments to Dr. Chang from 7 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 73% of the total. Stryker Corporation paid the most, $178.
General payments to Dr. Chang by program year, 2016 to 2024
General payments to Dr. Chang by kind, 2016 to 2024
- Food and beverage$52473%
- Travel and lodging$19727%
Companies that paid Dr. Chang the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David K. Chang graduated from University of Michigan Medical School
Dr. Chang graduated from University of Michigan Medical School in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. David 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. David K. Chang's NPI number?
Dr. David K. Chang's NPI number is 1013907062. It was assigned on October 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David K. Chang?
Dr. David K. Chang is an orthopedic surgeon in Naperville, Illinois. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. David K. Chang practice?
Dr. Chang practices at 801 South Washington, Naperville, IL 60540. Dr. Chang's primary practice is Edward Hospital in Naperville, Illinois, part of Endeavor Health. Dmand AI also links Dr. Chang to 1 community health center, 1 group practice or clinic and 1 medical group.
What is Dr. David K. Chang's office phone number?
The practice phone on file for Dr. Chang is (630) 527-3000.
What is Dr. David K. Chang's medical license number?
Dr. Chang holds Illinois license 036064629.
Which hospitals is Dr. David K. Chang affiliated with?
Dr. Chang practices at Edward Hospital in Naperville, Illinois.
What medical group is Dr. David K. Chang part of?
Dr. Chang is linked to Lawndale Christian Health Center. Dmand AI links Dr. Chang to 1 more medical group.
Does Dr. David K. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 1,362 services in 2019, and Dr. Chang accepts Medicare assignment.
What services does Dr. David K. Chang bill to Medicare?
In 2019, Dr. Chang's most billed Medicare services were diagnostic imaging (73562), surgery: bones and joints (20610) and injected or infused drug (J0702).
Where did Dr. David K. Chang go to medical school?
Dr. Chang graduated from University of Michigan Medical School in 1981.
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What drugs does Dr. David K. Chang prescribe most?
In 2019 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Celecoxib and Amoxicillin.
Has Dr. David K. Chang received payments from drug or device companies?
CMS Open Payments shows $720 in general payments to Dr. Chang from 7 companies from 2016 to 2024. The largest total came from Stryker Corporation.
How long has Dr. David K. Chang been practicing?
Dr. Chang graduated from medical school in 1981, 45 years ago.
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