Catherine Insun Hwang
- Part D claims, 2024
- 49
- MIPS score, 2024
- 92
- Hospital affiliations
- 1
- Industry payments
- $148
- Medical groups
- 2
- Practice address
- 757 Westwood Plaza, Los Angeles, CA 90095
- Practice phone
- Call (310) 825-6301
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Catherine Hwang'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.
Catherine Insun Hwang is a nurse practitioner in Los Angeles, California
Catherine Hwang practices at Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health.
Catherine Hwang's NPI, 1063062982, was assigned on September 12, 2019. Catherine Hwang holds California license 95012505.
- NPI
- 1063062982NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325460884
- NPI enumeration date
- September 12, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 825-6301
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- 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)
Catherine Insun Hwang practices at Ronald Reagan UCLA Medical Center in Los Angeles, California
Catherine Hwang's primary practice is Ronald Reagan UCLA Medical Center, at 757 Westwood Plaza, Los Angeles, CA 90095 in Los Angeles County. The practice phone is (310) 825-6301.
- Ronald Reagan UCLA Medical Center757 Westwood Plaza, Los Angeles, CA 90095 · Los Angeles CountyPhone(310) 825-6301
Source: Dmand AI Affiliation Data
Catherine Insun Hwang is affiliated with 1 site of care and 2 medical groups
Catherine Hwang's primary practice is Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health. The medical group on file is UCLA Medical Group. Dmand AI also links Catherine Hwang to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Catherine Insun Hwang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Catherine Hwang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ronald Reagan UCLA Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across University of California Health and 6.2K+ hospitals, with verified contacts in the same login.
Catherine Insun Hwang is one of 5,983 nurse practitioners in California
Nurse practitioner is Catherine Hwang's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Catherine Hwang is licensed in California.
Specialties and state licenses
- Nurse practitioner, CaliforniaPrimary
Nurse practitioners near Catherine Hwang
Counts of nurse practitioners 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
Catherine Insun Hwang's patients have a median age of 54
Across all payers, Dmand AI patient panel data puts Catherine Hwang's median patient age at 54, with 40% women.
Catherine Hwang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women40%
- Men59%
Source: Dmand AI Patient Panel Data
Catherine Insun Hwang wrote 49 Medicare Part D claims in 2024
In 2024, Catherine Hwang wrote 49 Medicare Part D claims for 20 patients. 71% of them were for generic drugs.
Catherine Hwang's Part D claims by kind of drug, 2024
- Generic35 claims71%
- Brand-name14 claims29%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Catherine Insun Hwang scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Catherine Hwang for performance year 2024, reported as part of a group. Catherine Hwang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Catherine Hwang's MIPS scores, performance year 2024
- 92of 100Final score
- 60.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 80of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Catherine Insun Hwang received $148 in industry payments in 2025
CMS Open Payments shows 1 general payment to Catherine Hwang from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Mallinckrodt Hospital Products Inc. paid the most, $148.
Companies that paid Catherine Hwang the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Catherine Insun Hwang'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 (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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Catherine Insun Hwang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Catherine Insun Hwang's NPI number?
Catherine Insun Hwang's NPI number is 1063062982. It was assigned on September 12, 2019, and it is active in the NPI Registry.
What does Catherine Insun Hwang specialize in?
Catherine Insun Hwang is a nurse practitioner in Los Angeles, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Catherine Insun Hwang practice?
Catherine Hwang practices at 757 Westwood Plaza, Los Angeles, CA 90095. Catherine Hwang's primary practice is Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health. Dmand AI also links Catherine Hwang to 1 medical group.
What is Catherine Insun Hwang's office phone number?
The practice phone on file for Catherine Hwang is (310) 825-6301.
What is Catherine Insun Hwang's medical license number?
Catherine Hwang holds California license 95012505.
Which hospitals is Catherine Insun Hwang affiliated with?
Catherine Hwang practices at Ronald Reagan UCLA Medical Center in Los Angeles, California.
What medical group is Catherine Insun Hwang part of?
Catherine Hwang is linked to UCLA Medical Group. Dmand AI links Catherine Hwang to 1 more medical group.
Does Catherine Insun Hwang accept Medicare?
Yes. CMS lists Catherine Hwang as accepting Medicare assignment.
What is Catherine Insun Hwang's MIPS score?
Catherine Hwang's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
Has Catherine Insun Hwang received payments from drug or device companies?
CMS Open Payments shows $148 in general payments to Catherine Hwang from 1 company from 2025 to 2025. The largest total came from Mallinckrodt Hospital Products Inc.
How long has Catherine Insun Hwang been practicing?
Catherine Hwang graduated from medical school in 2019, 7 years ago.
Selling to nurse practitioner practices?
See nurse practitioners in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card