Dr. Seung Chang, MD
- Medicare services, 2022
- 35
- Part D claims, 2024
- 12
- Industry payments
- $114
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 542 Broadway, Chula Vista, CA 91910
- Practice phone
- Call (972) 364-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Concentra Urgent Care - Chula Vista
Urgent Care Center · Chula Vista, 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. Seung Chang is a family medicine physician in Chula Vista, California
Dr. Chang practices at Concentra Urgent Care - Chula Vista in Chula Vista, California.
Dr. Chang's NPI, 1073603460, was assigned on October 13, 2006. Dr. Chang graduated from Korea University College of Medicine in 1973. Dr. Chang holds California license A350670.
- NPI
- 1073603460NPI Registry (opens in a new tab)
- NPI enumeration date
- October 13, 2006
- NPI status
- Active
- Practice phone
- (972) 364-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Seung Chang practices at Concentra Urgent Care - Chula Vista in Chula Vista, California
Dr. Chang's primary practice is Concentra Urgent Care - Chula Vista, at 542 Broadway, Chula Vista, CA 91910. The practice phone is (972) 364-8000.
- Concentra Urgent Care - Chula Vista542 Broadway, Chula Vista, CA 91910Phone(972) 364-8000
Source: Dmand AI Affiliation Data
Dr. Seung Chang is affiliated with 2 sites of care and 1 medical group
Dr. Chang's primary practice is Concentra Urgent Care - Chula Vista in Chula Vista, California. The medical group on file is Concentra Urgent Care. Dmand AI also links Dr. Chang to 1 more group practice or clinic, named with a free account. Dr. Chang's employer is on file too: an urgent care center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Seung 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 |
|---|---|
| Concentra Urgent Care - Chula Vista | 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. Seung Chang is one of 15,680 family medicine physicians in California
Family medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Chang is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Chang
Counts of family medicine physicians 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. Seung Chang billed Medicare for 35 services in 2022
CMS data shows 35 Medicare services from Dr. Chang across 1 procedure code in 2022, all of them office visits. Medicare paid $893 for them. Every service was in an office.
Dr. Chang's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 402022: 3513%
Dr. Chang compared with the California median for family medicine physicians, 2022
- Dr. Chang
- California median
- Medicare services
- 35vs 24686% below
- Part D claims
- 359vs 83357% below
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Seung Chang's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 63, with 54% 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 63
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Seung Chang wrote 12 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 12 Medicare Part D claims. 100% of them were for generic drugs. They cover 20 drugs, with $17,018 in total drug cost. In 2021, CMS named 456 claims across 23 drugs.
Dr. Chang's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 4562022: 35921%
Drugs named by CMS: 20 in 2022, 23 in 2021.
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
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Dr. Seung Chang received $114 in industry payments from 2017 to 2019
CMS Open Payments shows 4 general payments to Dr. Chang from 4 drug and device companies from 2017 to 2019. Food and beverage make up the largest share, 100% of the total. Bioventus LLC paid the most, $42.
General payments to Dr. Chang by program year, 2017 to 2019
Companies that paid Dr. Chang the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Seung Chang graduated from Korea University College of Medicine
Dr. Chang graduated from Korea University College of Medicine in 1973.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Seung Chang accepts plans from 4 insurance carriers
Dr. Chang is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
Plan types Dr. Chang accepts, by number of carriers
- Medicare4
- PPO4
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Seung 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)Medicare Part D Prescribers - by Provider (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. Seung 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. Seung Chang's NPI number?
Dr. Seung Chang's NPI number is 1073603460. It was assigned on October 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Seung Chang?
Dr. Seung Chang is a family medicine physician in Chula Vista, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Seung Chang practice?
Dr. Chang practices at 542 Broadway, Chula Vista, CA 91910. Dr. Chang's primary practice is Concentra Urgent Care - Chula Vista in Chula Vista, California. Dmand AI also links Dr. Chang to 1 group practice or clinic.
What is Dr. Seung Chang's office phone number?
The practice phone on file for Dr. Chang is (972) 364-8000.
What is Dr. Seung Chang's medical license number?
Dr. Chang holds California license A350670.
What medical group is Dr. Seung Chang part of?
Dr. Chang is linked to Concentra Urgent Care.
Does Dr. Seung Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 35 services in 2022.
What services does Dr. Seung Chang bill to Medicare?
In 2022, Dr. Chang's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Seung Chang go to medical school?
Dr. Chang graduated from Korea University College of Medicine in 1973.
What drugs does Dr. Seung Chang prescribe most?
In 2022 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Amlodipine Besylate, Losartan Potassium and Sildenafil Citrate.
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Has Dr. Seung Chang received payments from drug or device companies?
CMS Open Payments shows $114 in general payments to Dr. Chang from 4 companies from 2017 to 2019. The largest total came from Bioventus LLC.
How long has Dr. Seung Chang been practicing?
Dr. Chang graduated from medical school in 1973, 53 years ago.
What insurance does Dr. Seung Chang accept?
Dr. Chang is in network with 4 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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