Dr. Roger S J Chang, DO
- Part D claims, 2024
- 911
- Hospital affiliations
- 2
- Industry payments
- $2,099
- Medical group
- 1
- State license
- 1
- Practice address
- 1541 Kings Highway, Shreveport, LA 71130
- Practice phone
- Call (318) 675-5058
- 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. Roger S J Chang is an internist in Shreveport, Louisiana
Dr. Chang practices at Ochsner LSU Health - Academic Medical Center in Shreveport, Louisiana, part of Ochsner Health System.
Dr. Chang's NPI, 1457937377, was assigned on March 22, 2021. Dr. Chang graduated from William Carey University College of Osteopathic Medicine in 2021. Dr. Chang holds Texas license 27887304.
- NPI
- 1457937377NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426459918
- NPI enumeration date
- March 22, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (318) 675-5058
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Roger S J Chang practices at Ochsner LSU Health - Academic Medical Center in Shreveport, Louisiana
Dr. Chang's primary practice is Ochsner LSU Health - Academic Medical Center, at 1541 Kings Highway, Shreveport, LA 71130 in Caddo Parish. The practice phone is (318) 675-5058.
- Ochsner LSU Health - Academic Medical Center1541 Kings Highway, Shreveport, LA 71130 · Caddo ParishPhone(318) 675-5058
Source: Dmand AI Affiliation Data
Dr. Roger S J Chang is affiliated with 2 sites of care and 1 medical group
Dr. Chang's primary practice is Ochsner LSU Health - Academic Medical Center in Shreveport, Louisiana, part of Ochsner Health System. Dr. Chang is also affiliated with Ochsner University Hospital & Clinics. The medical group on file is LSU Healthcare Network.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Roger S J Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ochsner LSU Health - Academic Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Roger S J Chang is one of 1,571 internists in Louisiana
Internal medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chang is licensed in Texas.
Specialties and state licenses
- Internal medicine, TexasPrimary
Internists near Dr. Chang
Counts of internists 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. Roger S J Chang's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 65, with 50% 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 65
Patient panel by sex, all payers
- Women50%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Roger S J Chang wrote 911 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 911 Medicare Part D claims for 116 patients. 77% of them were for generic drugs. CMS names the drug for 536 of them, across 23 drugs with 11 or more claims each, at $45,796 in total drug cost. In 2023, CMS named 687 claims across 30 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic700 claims77%
- Brand-name and other211 claims23%
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
- Antibiotics1%11 of 911 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: 6872024: 53622%
Drugs named by CMS: 23 in 2024, 30 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
How Dr. Roger S J 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. Roger S J Chang received $2,099 in industry payments from 2022 to 2025
CMS Open Payments shows 90 general payments to Dr. Chang from 23 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 97% of the total. AstraZeneca Pharmaceuticals LP paid the most, $360.
General payments to Dr. Chang by program year, 2022 to 2025
General payments to Dr. Chang by kind, 2022 to 2025
- Food and beverage$2,03797%
- Education$623%
Companies that paid Dr. Chang the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Roger S J Chang graduated from William Carey University College of Osteopathic Medicine
Dr. Chang graduated from William Carey University College of Osteopathic Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Roger S J 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 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)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) |
| 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. Roger S J 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. Roger S J Chang's NPI number?
Dr. Roger S J Chang's NPI number is 1457937377. It was assigned on March 22, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Roger S J Chang?
Dr. Roger S J Chang is an internist in Shreveport, Louisiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Roger S J Chang practice?
Dr. Chang practices at 1541 Kings Highway, Shreveport, LA 71130. Dr. Chang's primary practice is Ochsner LSU Health - Academic Medical Center in Shreveport, Louisiana, part of Ochsner Health System.
What is Dr. Roger S J Chang's office phone number?
The practice phone on file for Dr. Chang is (318) 675-5058.
What is Dr. Roger S J Chang's medical license number?
Dr. Chang holds Texas license 27887304.
Which hospitals is Dr. Roger S J Chang affiliated with?
Dr. Chang practices at Ochsner LSU Health - Academic Medical Center in Shreveport, Louisiana. Dr. Chang is also affiliated with Ochsner University Hospital & Clinics.
What medical group is Dr. Roger S J Chang part of?
Dr. Chang is linked to LSU Healthcare Network.
Does Dr. Roger S J Chang accept Medicare?
Yes. CMS lists Dr. Chang as accepting Medicare assignment.
Where did Dr. Roger S J Chang go to medical school?
Dr. Chang graduated from William Carey University College of Osteopathic Medicine in 2021.
What drugs does Dr. Roger S J Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Lisinopril, Albuterol Sulfate Hfa and Atorvastatin Calcium.
Has Dr. Roger S J Chang received payments from drug or device companies?
CMS Open Payments shows $2,099 in general payments to Dr. Chang from 23 companies from 2022 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Roger S J Chang been practicing?
Dr. Chang graduated from medical school in 2021, 5 years ago.
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