Dr. Jimmy T. Chang, DO
- Part D claims, 2024
- 420
- Hospital affiliations
- 2
- Industry payments
- $3,573
- Medical group
- 1
- Insurance carriers
- 1
- Practice address
- 3440 E La Palma Ave, Anaheim, CA 92806
- Practice phone
- Call (714) 279-4000
- 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
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. Jimmy T. Chang is an anesthesiologist in Anaheim, California
Dr. Chang practices at Orange County - Anaheim Medical Center in Anaheim, California, part of Kaiser Permanente.
Dr. Chang's NPI, 1639639735, was assigned on March 23, 2019. Dr. Chang graduated from Touro University Nevada in 2019. Dr. Chang holds California license 20A20333.
- NPI
- 1639639735NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395182398
- NPI enumeration date
- March 23, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 279-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jimmy T. Chang practices at Orange County - Anaheim Medical Center in Anaheim, California
Dr. Chang's primary practice is Orange County - Anaheim Medical Center, at 3440 E La Palma Ave, Anaheim, CA 92806 in Orange County. The practice phone is (714) 279-4000.
- Orange County - Anaheim Medical Center3440 E La Palma Ave, Anaheim, CA 92806 · Orange CountyPhone(714) 279-4000
Source: Dmand AI Affiliation Data
Dr. Jimmy T. Chang is affiliated with 2 sites of care and 1 medical group
Dr. Chang's primary practice is Orange County - Anaheim Medical Center in Anaheim, California, part of Kaiser Permanente. Dr. Chang is also affiliated with Loma Linda University Medical Center. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jimmy T. 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 |
|---|---|
| Orange County - Anaheim 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. Jimmy T. Chang is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Chang is board certified in 2022 - 2026 by the CA State License. Dr. Chang is licensed in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. Chang
Counts of anesthesiologists 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. Jimmy T. Chang's patients have a median age of 53
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 53, with 62% 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 53
Patient panel by sex, all payers
- Women62%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. Jimmy T. Chang wrote 420 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 420 Medicare Part D claims for 121 patients. 97% of them were for generic drugs. CMS names the drug for 322 of them, across 10 drugs with 11 or more claims each, at $9,437 in total drug cost.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic409 claims97%
- Brand-name11 claims3%
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
- Opioids23%98 of 420 claims
- Antibiotics4%16 of 420 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Jimmy T. 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. Jimmy T. Chang received $3,573 in industry payments from 2021 to 2025
CMS Open Payments shows 28 general payments to Dr. Chang from 11 drug and device companies from 2021 to 2025. Grants make up the largest share, 53% of the total. Abbott Laboratories paid the most, $1,996.
General payments to Dr. Chang by program year, 2021 to 2025
General payments to Dr. Chang by kind, 2021 to 2025
- Grants$1,90053%
- Food and beverage$1,05730%
- Travel and lodging$61617%
Companies that paid Dr. Chang the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jimmy T. Chang graduated from Touro University Nevada
Dr. Chang graduated from Touro University Nevada in 2019.
- Medical school
- Board certified in 2022 - 2026
- Board certified in 2020 - 2021
Source: Dmand AI Professional Profile Data
Dr. Jimmy T. Chang accepts plans from 1 insurance carrier
Dr. Chang is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Chang accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jimmy 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 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 |
| 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. Jimmy 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. Jimmy T. Chang's NPI number?
Dr. Jimmy T. Chang's NPI number is 1639639735. It was assigned on March 23, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Jimmy T. Chang?
Dr. Jimmy T. Chang is an anesthesiologist in Anaheim, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Jimmy T. Chang practice?
Dr. Chang practices at 3440 E La Palma Ave, Anaheim, CA 92806. Dr. Chang's primary practice is Orange County - Anaheim Medical Center in Anaheim, California, part of Kaiser Permanente.
What is Dr. Jimmy T. Chang's office phone number?
The practice phone on file for Dr. Chang is (714) 279-4000.
What is Dr. Jimmy T. Chang's medical license number?
Dr. Chang holds California license 20A20333.
Which hospitals is Dr. Jimmy T. Chang affiliated with?
Dr. Chang practices at Orange County - Anaheim Medical Center in Anaheim, California. Dr. Chang is also affiliated with Loma Linda University Medical Center.
What medical group is Dr. Jimmy T. Chang part of?
Dr. Chang is linked to Southern California Permanente Medical Group.
Does Dr. Jimmy T. Chang accept Medicare?
Yes. CMS lists Dr. Chang as accepting Medicare assignment.
Is Dr. Jimmy T. Chang board certified?
Yes. Dr. Chang is board certified in 2022 - 2026 by the CA State License.
Where did Dr. Jimmy T. Chang go to medical school?
Dr. Chang graduated from Touro University Nevada in 2019.
Show 4 more questionsShow fewer questions
What drugs does Dr. Jimmy T. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Gabapentin, Duloxetine HCl and Hydrocodone-Acetaminophen.
Has Dr. Jimmy T. Chang received payments from drug or device companies?
CMS Open Payments shows $3,573 in general payments to Dr. Chang from 11 companies from 2021 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Jimmy T. Chang been practicing?
Dr. Chang graduated from medical school in 2019, 7 years ago.
What insurance does Dr. Jimmy T. Chang accept?
Dr. Chang is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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