Ruth T. Hwang, MS, PA-C
- Medicare services, 2024
- 429
- Medicare patients, 2024
- 111
- Part D claims, 2024
- 1,394
- Hospital affiliations
- 2
- Industry payments
- $2,385
- Practice address
- 520 Superior Ave Suite 150 Suite 150, Newport Beach, CA 92663-3642
- Practice phone
- Call (949) 764-8065
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
David Ahn, M.d., INC
Multi-specialty group site · Newport Beach, California
Find Ruth Hwang's professional email, personal email and mobile number
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Ruth T. Hwang is a physician assistant in Newport Beach, California
Ruth Hwang practices at David Ahn, M.d., INC in Newport Beach, California.
Ruth Hwang's NPI, 1821332156, was assigned on November 27, 2012. Ruth Hwang holds Arizona license 5211.
- NPI
- 1821332156NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678728409
- NPI enumeration date
- November 27, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (949) 764-8065
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Ruth T. Hwang practices at David Ahn, M.d., INC in Newport Beach, California
Ruth Hwang's primary practice is David Ahn, M.d., INC, at 520 Superior Ave Suite 150 Suite 150, Newport Beach, CA 92663-3642. The practice phone is (949) 764-8065.
- David Ahn, M.d., INC520 Superior Ave Suite 150 Suite 150, Newport Beach, CA 92663-3642Phone(949) 764-8065
Source: Dmand AI Affiliation Data
Ruth T. Hwang is affiliated with 4 sites of care and 2 medical groups
Ruth Hwang's primary practice is David Ahn, M.d., INC in Newport Beach, California. Ruth Hwang is also affiliated with Hoag Hospital Newport Beach. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Ruth Hwang to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Ruth T. Hwang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ruth Hwang practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| David Ahn, M.d., INC | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Ruth T. Hwang is one of 11,482 physician assistants in California
Physician assistant is Ruth Hwang's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Ruth Hwang is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Ruth Hwang is licensed in Arizona.
Specialties and state licenses
- Physician assistant, ArizonaPrimary
Clinical focus
Dmand AI lists diabetic emergency among the conditions Ruth Hwang treats.
Physician assistants near Ruth Hwang
Counts of physician assistants 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
Ruth T. Hwang billed Medicare for 429 services in 2024
CMS data shows 429 Medicare services from Ruth Hwang across 4 procedure codes in 2024, for 111 Medicare patients. Medicare paid $24,402 for them. Every service was in an office.
Ruth Hwang's Medicare services by type, 2024
- Office and hospital visits229
- Tests and treatments105
- Other services95
Ruth Hwang compared with the California median for physician assistants, 2024
- Ruth Hwang
- California median
- Medicare services
- 429vs 2042.1 times
- Medicare patients
- 111vs 1056% above
- Part D claims
- 1,156vs 2434.8 times
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Ruth Hwang's most billed Medicare procedure codes, 2024
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 Ruth Hwang and other physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Ruth T. Hwang treated 111 Medicare patients in 2024, average age 76
CMS counts 111 Medicare patients who saw Ruth Hwang in 2024. The largest group is 65 to 74, with 55 patients. 75% of them have diabetes, and 75% have high blood pressure. Their average risk score is 1.52, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Ruth Hwang's median patient age at 65, with 51% women.
Ruth Hwang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Ruth Hwang's Medicare patients by sex, 2024
- Women4238%
- Men6962%
Chronic conditions among Ruth Hwang's Medicare patients, 2024
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease49%
- Arthritis47%
- Chronic kidney disease41%
- Cancer27%
- Mood disorders24%
Share of Medicare patients with each condition. A patient can have several.
Ruth 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 65
Patient panel by sex, all payers
- Women51%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ruth T. Hwang wrote 1,394 Medicare Part D claims in 2024
In 2024, Ruth Hwang wrote 1,394 Medicare Part D claims for 175 patients. 31% of them were for generic drugs. CMS names the drug for 1,156 of them, across 25 drugs with 11 or more claims each, at $824,276 in total drug cost.
Ruth Hwang's Part D claims by kind of drug, 2024
- Generic438 claims31%
- Brand-name855 claims61%
- Other101 claims7%
Ruth Hwang'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.
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 Ruth T. Hwang takes part in Medicare
Ruth Hwang 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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Ruth T. Hwang received $2,385 in industry payments from 2024 to 2025
CMS Open Payments shows 70 general payments to Ruth Hwang from 11 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Corcept Therapeutics paid the most, $759.
General payments to Ruth Hwang by program year, 2024 to 2025
Companies that paid Ruth Hwang the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Ruth T. Hwang is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Ruth T. 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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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 Ruth T. 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 Ruth T. Hwang's NPI number?
Ruth T. Hwang's NPI number is 1821332156. It was assigned on November 27, 2012, and it is active in the NPI Registry.
What does Ruth T. Hwang specialize in?
Ruth T. Hwang is a physician assistant in Newport Beach, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Ruth T. Hwang practice?
Ruth Hwang practices at 520 Superior Ave Suite 150 Suite 150, Newport Beach, CA 92663-3642. Ruth Hwang's primary practice is David Ahn, M.d., INC in Newport Beach, California. Dmand AI also links Ruth Hwang to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Ruth T. Hwang's office phone number?
The practice phone on file for Ruth Hwang is (949) 764-8065.
What is Ruth T. Hwang's medical license number?
Ruth Hwang holds Arizona license 5211.
Which hospitals is Ruth T. Hwang affiliated with?
Ruth Hwang is affiliated with Hoag Hospital Newport Beach. Dmand AI links Ruth Hwang to 1 more hospital.
What medical group is Ruth T. Hwang part of?
Ruth Hwang is linked to St. Jude Heritage Medical Group. Dmand AI links Ruth Hwang to 1 more medical group.
Does Ruth T. Hwang accept Medicare?
Yes. CMS data shows Ruth Hwang billed Medicare for 429 services in 2024, and Ruth Hwang accepts Medicare assignment.
How many Medicare patients does Ruth T. Hwang see?
CMS counts 111 Medicare patients who saw Ruth Hwang in 2024, with an average age of 76.
Is Ruth T. Hwang board certified?
Yes. Ruth Hwang is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
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What services does Ruth T. Hwang bill to Medicare?
In 2024, Ruth Hwang's most billed Medicare services were office visit, established patient (99214), medical service (95251) and medicare service (G2211).
What drugs does Ruth T. Hwang prescribe most?
In 2024 Medicare Part D data, Ruth Hwang's most prescribed drugs by claims were Ozempic, Mounjaro and Farxiga.
Has Ruth T. Hwang received payments from drug or device companies?
CMS Open Payments shows $2,385 in general payments to Ruth Hwang from 11 companies from 2024 to 2025. The largest total came from Corcept Therapeutics.
How long has Ruth T. Hwang been practicing?
Ruth Hwang graduated from medical school in 2012, 14 years ago.
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