Dr. Larry W. Kwak, MD, PhD
- Medicare services, 2024
- 27
- Medicare patients, 2024
- 22
- Part D claims, 2024
- 14
- Publications
- 209
- Clinical trials
- 1
- Practice address
- 1500 Duarte Rd, Duarte, CA 91010
- Practice phone
- Call (800) 826-4673
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
City of Hope Comprehensive Cancer Center - Duarte
Duarte, California
Find Dr. Kwak'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. Larry W. Kwak is a hematology (internal medicine) physician in Duarte, California
Dr. Kwak practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.
Dr. Kwak's NPI, 1134215817, was assigned on October 4, 2006. Dr. Kwak graduated from Feinberg School of Medicine in 1982. Dr. Kwak holds California license G55439.
- NPI
- 1134215817NPI Registry (opens in a new tab)
- NPI enumeration date
- October 4, 2006
- NPI status
- Active
- Practice phone
- (800) 826-4673
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Larry W. Kwak practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California
Dr. Kwak's primary practice is City of Hope Comprehensive Cancer Center - Duarte, at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (800) 826-4673.
- City of Hope Comprehensive Cancer Center - Duarte1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(800) 826-4673
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Larry W. Kwak is affiliated with 2 sites of care and 1 medical group
Dr. Kwak's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. The medical group on file is City of Hope. Dmand AI also links Dr. Kwak to 1 more other site, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Larry W. Kwak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kwak practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| City of Hope Comprehensive Cancer Center - Duarte | 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. Larry W. Kwak is one of 153 hematology (internal medicine) physicians in California
Internal medicine is Dr. Kwak's primary specialty in the NPI Registry, under taxonomy code 207RH0000X. The record also lists hematology. Dr. Kwak is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Kwak's licenses on file in 3 states: California, Texas and Maryland.
Specialties and state licenses
- Hematology (internal medicine), CaliforniaPrimary
- Texas license
- Maryland license
Clinical focus
Dmand AI lists lymphoma among the conditions Dr. Kwak treats.
Hematology (internal medicine) physicians near Dr. Kwak
Counts of hematology (internal 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. Larry W. Kwak billed Medicare for 27 services in 2024
CMS data shows 27 Medicare services from Dr. Kwak across 1 procedure code in 2024, all of them office visits, for 22 Medicare patients. Medicare paid $2,257 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Kwak's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 262024: 274%
Dr. Kwak compared with the California median for hematology (internal medicine) physicians, 2024
- Dr. Kwak
- California median
- Medicare services
- 27vs 37393% below
- Medicare patients
- 22vs 10980% below
Medians across 139 hematology (internal medicine) physicians in California with Dmand AI profiles that report each measure.
Dr. Kwak'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.
Need commercial claims for Dr. Kwak?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kwak and other hematology (internal medicine) physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Larry W. Kwak treated 22 Medicare patients in 2024, average age 75
CMS counts 22 Medicare patients who saw Dr. Kwak in 2024. 75% of them have high cholesterol, and 68% have high blood pressure. Their average risk score is 1.91, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Kwak's median patient age at 70, with 41% women.
Chronic conditions among Dr. Kwak's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis59%
- Osteoporosis50%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kwak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women41%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Larry W. Kwak wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Kwak wrote 14 Medicare Part D claims. 100% of them were for generic drugs.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Larry W. Kwak scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Kwak for performance year 2024, reported as part of a group.
Dr. Kwak's MIPS scores, performance year 2024
- 93of 100Final score
- 78.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Larry W. Kwak has 209 publications on record
Dmand AI links 209 papers to Dr. Kwak, published from 2004 to 2025. 2016 was the busiest year, with 8. The most frequent topics are Cancer Vaccines, Antineoplastic Combined Chemotherapy Protocols and Lymphoma, B-Cell. Dr. Kwak has published most often in Blood. Dr. Kwak's most frequent co-authors are Sattva S. Neelapu, MD, Luis E. Fayad, MD and Michael Y. Wang, MD.
Dr. Kwak's papers by year, 2016 to 2025
Topics Dr. Kwak writes about most
- Cancer Vaccines
- Antineoplastic Combined Chemotherapy Protocols
- Lymphoma, B-Cell
- Immunoglobulin Idiotypes
- Lymphoma, Follicular
- Antigens, Neoplasm
- Multiple Myeloma
- Rituximab
Dr. Kwak's most frequent co-authors
- Sattva S. Neelapu, MD61 shared papers
- Luis E. Fayad, MD34 shared papers
- Michael Y. Wang, MD26 shared papers
Recent publications by Dr. Kwak
Clin Lymphoma Myeloma Leuk
Clin Lymphoma Myeloma Leuk
See who Dr. Kwak researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kwak works with, so you can find a warm path to the right hematology (internal medicine) physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Larry W. Kwak has worked on 1 clinical trial
Dmand AI links Dr. Kwak to 1 clinical trial. Conditions studied include Hematologic Neoplasms and Multiple Myeloma.
Conditions in Dr. Kwak's trials
- Hematologic Neoplasms
- Multiple Myeloma
Recent clinical trials with Dr. Kwak
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Larry W. Kwak received $74,799 in industry payments from 2017 to 2025
CMS Open Payments shows 19 general payments to Dr. Kwak from 11 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 97% of the total. GlaxoSmithKline, LLC. paid the most, $21,563. It also lists 4 research payments totaling $60,203 from 2018 to 2019.
General payments to Dr. Kwak by program year, 2017 to 2025
General payments to Dr. Kwak by kind, 2017 to 2025
- Consulting fees$72,92297%
- Travel and lodging$1,1322%
- Food and beverage$7441%
Companies that paid Dr. Kwak the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Larry W. Kwak has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Kwak, most recently America's Top Doctors in 2014.
Awards and honors for Dr. Kwak
- 2014
- America's Top Doctors
- 2013
- America's Top Doctors for Cancer
- Top Doctors:SE Texas
- 2003
- ASCI Member
Source: Dmand AI Professional Profile Data
Dr. Larry W. Kwak graduated from Feinberg School of Medicine
Dr. Kwak graduated from Feinberg School of Medicine in 1982.
- Medical school
- Board certified in internal medicine
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Larry W. Kwak accepts plans from 6 insurance carriers
Dr. Kwak is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- CMS Medicare
- Molina
Plan types Dr. Kwak accepts, by number of carriers
- Medicare5
- PPO4
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Larry W. Kwak'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Larry W. Kwak
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. Larry W. Kwak's NPI number?
Dr. Larry W. Kwak's NPI number is 1134215817. It was assigned on October 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Larry W. Kwak?
Dr. Larry W. Kwak is a hematology (internal medicine) physician in Duarte, California. The primary specialty in the NPI Registry is Hematology (Internal Medicine) Physician (taxonomy code 207RH0000X).
Where does Dr. Larry W. Kwak practice?
Dr. Kwak practices at 1500 Duarte Rd, Duarte, CA 91010. Dr. Kwak's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Dr. Kwak to 1 other site.
What is Dr. Larry W. Kwak's office phone number?
The practice phone on file for Dr. Kwak is (800) 826-4673.
What is Dr. Larry W. Kwak's medical license number?
Dr. Kwak holds California license G55439, one of the licenses on file in 3 states.
Which states has Dr. Larry W. Kwak been licensed in?
Dmand AI has state licenses on file for Dr. Kwak in California (2015 to 2027), Texas (2005 to 2024) and Maryland (1991 to 2004).
What medical group is Dr. Larry W. Kwak part of?
Dr. Kwak is linked to City of Hope.
Does Dr. Larry W. Kwak accept Medicare?
Yes. CMS data shows Dr. Kwak billed Medicare for 27 services in 2024.
What is Dr. Larry W. Kwak's MIPS score?
Dr. Kwak's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. Larry W. Kwak see?
CMS counts 22 Medicare patients who saw Dr. Kwak in 2024, with an average age of 75.
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Is Dr. Larry W. Kwak board certified?
Yes. Dr. Kwak is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Larry W. Kwak bill to Medicare?
In 2024, Dr. Kwak's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Larry W. Kwak go to medical school?
Dr. Kwak graduated from Feinberg School of Medicine in 1982.
Has Dr. Larry W. Kwak received payments from drug or device companies?
CMS Open Payments shows $74,799 in general payments to Dr. Kwak from 11 companies from 2017 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Larry W. Kwak been practicing?
Dr. Kwak graduated from medical school in 1982, 44 years ago.
Does Dr. Larry W. Kwak do research?
Dmand AI links 209 publications to Dr. Kwak, published from 2004 to 2025. Dr. Kwak has worked on 1 clinical trial.
Who does Dr. Larry W. Kwak publish with?
Dr. Kwak's most frequent co-authors are Sattva S. Neelapu, MD (61 shared papers), Luis E. Fayad, MD (34 shared papers) and Michael Y. Wang, MD (26 shared papers).
What insurance does Dr. Larry W. Kwak accept?
Dr. Kwak is in network with 6 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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