Dr. Kalena K. Hwang, MD
- Medicare services, 2024
- 733
- Medicare patients, 2024
- 177
- Part D claims, 2024
- 4,987
- Hospital affiliations
- 3
- Industry payments
- $170
- Practice address
- 4870 Barranca Pkwy, Irvine, CA 92604
- Practice phone
- Call (949) 417-9820
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Irvine Family Care, Inc
Irvine, California
Find Dr. 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.
Dr. Kalena K. Hwang is an internist in Irvine, California
Dr. Hwang practices at Irvine Family Care, Inc in Irvine, California.
Dr. Hwang's NPI, 1225088164, was assigned on May 11, 2006. Dr. Hwang graduated from Saint Louis University School of Medicine in 2003. Dr. Hwang holds California license A89575.
- NPI
- 1225088164NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951312594
- NPI enumeration date
- May 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (949) 417-9820
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kalena K. Hwang practices at Irvine Family Care, Inc in Irvine, California
Dr. Hwang's primary practice is Irvine Family Care, Inc, at 4870 Barranca Pkwy, Irvine, CA 92604 in Orange County. The practice phone is (949) 417-9820.
- Irvine Family Care, Inc4870 Barranca Pkwy, Irvine, CA 92604 · Orange CountyPhone(949) 417-9820
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Kalena K. Hwang is affiliated with 6 sites of care and 1 medical group
Dr. Hwang's primary practice is Irvine Family Care, Inc in Irvine, California. Dr. Hwang is also affiliated with Hoag Hospital Newport Beach. The medical group on file is Irvine Family Care. Dmand AI also links Dr. Hwang to 2 more hospitals, 1 group practice or clinic and 1 home health agency, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Kalena K. Hwang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hwang practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Irvine Family Care, Inc | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kalena K. Hwang is one of 16,751 internists in California
Internal medicine is Dr. Hwang's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hwang is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Hwang
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. Kalena K. Hwang billed Medicare for 733 services in 2024
CMS data shows 733 Medicare services from Dr. Hwang across 8 procedure codes in 2024, for 177 Medicare patients. Medicare paid $50,095 for them. Every service was in an office.
Dr. Hwang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 1202024: 346188%
- Office and hospital visits
- 2023: 3782024: 33811%
- Tests and treatments
- 2023: 182024: 37106%
- Lab and pathology
- 2023: 02024: 12
Dr. Hwang compared with the California median for internists, 2024
- Dr. Hwang
- California median
- Medicare services
- 733vs 3612.0 times
- Medicare patients
- 177vs 15117% above
- Part D claims
- 4,450vs 42110.6 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. 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 Dr. Hwang and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kalena K. Hwang treated 177 Medicare patients in 2024, average age 76
CMS counts 177 Medicare patients who saw Dr. Hwang in 2024. The largest group is 75 to 84, with 79 patients. 75% of them have high cholesterol, and 62% have high blood pressure. Their average risk score is 0.85, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hwang's median patient age at 69, with 75% women.
Dr. Hwang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hwang's Medicare patients by sex, 2024
- Women12772%
- Men5028%
Chronic conditions among Dr. Hwang's Medicare patients, 2024
- High cholesterol75%
- High blood pressure62%
- Arthritis34%
- Osteoporosis29%
- Cancer21%
- Diabetes21%
- Chronic kidney disease15%
- Mood disorders15%
Share of Medicare patients with each condition. A patient can have several.
Dr. 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 69
Patient panel by sex, all payers
- Women75%
- Men24%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kalena K. Hwang wrote 4,987 Medicare Part D claims in 2024
In 2024, Dr. Hwang wrote 4,987 Medicare Part D claims for 457 patients. 90% of them were for generic drugs. CMS names the drug for 4,450 of them, across 91 drugs with 11 or more claims each, at $367,630 in total drug cost. In 2023, CMS named 4,313 claims across 86 drugs.
Dr. Hwang's Part D claims by kind of drug, 2024
- Generic4,471 claims90%
- Brand-name490 claims10%
- Other26 claims1%
Dr. 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.
Drug classes CMS tracks in Dr. Hwang's Part D claims, 2024
- Opioids1%45 of 4,987 claims
- Antibiotics2%123 of 4,987 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: 4,3132024: 4,4503%
Drugs named by CMS: 91 in 2024, 86 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
Dr. Kalena K. Hwang offers telehealth to Medicare patients
Dr. Hwang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hwang as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Kalena K. Hwang received $170 in industry payments from 2018 to 2025
CMS Open Payments shows 8 general payments to Dr. Hwang from 8 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $28.
General payments to Dr. Hwang by program year, 2018 to 2025
Companies that paid Dr. Hwang the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Kalena K. Hwang graduated from Saint Louis University School of Medicine
Dr. Hwang graduated from Saint Louis University School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Kalena K. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Doctors and Clinicians Utilization Data (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. Kalena K. 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 Dr. Kalena K. Hwang's NPI number?
Dr. Kalena K. Hwang's NPI number is 1225088164. It was assigned on May 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Kalena K. Hwang?
Dr. Kalena K. Hwang is an internist in Irvine, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Kalena K. Hwang practice?
Dr. Hwang practices at 4870 Barranca Pkwy, Irvine, CA 92604. Dr. Hwang's primary practice is Irvine Family Care, Inc in Irvine, California. Dmand AI also links Dr. Hwang to 2 hospitals, 1 group practice or clinic and 1 home health agency.
What is Dr. Kalena K. Hwang's office phone number?
The practice phone on file for Dr. Hwang is (949) 417-9820.
What is Dr. Kalena K. Hwang's medical license number?
Dr. Hwang holds California license A89575.
Which hospitals is Dr. Kalena K. Hwang affiliated with?
Dr. Hwang is affiliated with Hoag Hospital Newport Beach. Dmand AI links Dr. Hwang to 2 more hospitals.
What medical group is Dr. Kalena K. Hwang part of?
Dr. Hwang is linked to Irvine Family Care.
Does Dr. Kalena K. Hwang accept Medicare?
Yes. CMS data shows Dr. Hwang billed Medicare for 733 services in 2024, and Dr. Hwang accepts Medicare assignment.
Does Dr. Kalena K. Hwang offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hwang as offering telehealth services.
How many Medicare patients does Dr. Kalena K. Hwang see?
CMS counts 177 Medicare patients who saw Dr. Hwang in 2024, with an average age of 76.
Show 5 more questionsShow fewer questions
What services does Dr. Kalena K. Hwang bill to Medicare?
In 2024, Dr. Hwang's most billed Medicare services were medicare service (G2211), office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Kalena K. Hwang go to medical school?
Dr. Hwang graduated from Saint Louis University School of Medicine in 2003.
What drugs does Dr. Kalena K. Hwang prescribe most?
In 2024 Medicare Part D data, Dr. Hwang's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. Kalena K. Hwang received payments from drug or device companies?
CMS Open Payments shows $170 in general payments to Dr. Hwang from 8 companies from 2018 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Kalena K. Hwang been practicing?
Dr. Hwang graduated from medical school in 2003, 23 years ago.
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