Dr. Roy Vongtama, MD
- Medicare services, 2024
- 101
- Medicare patients, 2024
- 60
- MIPS score, 2024
- 81
- Hospital affiliations
- 3
- Industry payments
- $22
- Practice address
- 1250 16th Street, Santa Monica, CA 90404
- Practice phone
- Call (310) 319-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Vongtama'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. Roy Vongtama is a radiation oncologist in Santa Monica, California
Dr. Vongtama practices at UCLA Santa Monica Medical Center in Santa Monica, California, part of University of California Health.
Dr. Vongtama's NPI, 1083837058, was assigned on April 10, 2007. Dr. Vongtama graduated from Jacobs School of Medicine and Biomedical Sciences in 2000. Dr. Vongtama holds California license A78334.
- NPI
- 1083837058NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4183720964
- NPI enumeration date
- April 10, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (310) 319-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Roy Vongtama practices at UCLA Santa Monica Medical Center in Santa Monica, California
Dr. Vongtama's primary practice is UCLA Santa Monica Medical Center, at 1250 16th Street, Santa Monica, CA 90404 in Los Angeles County. The practice phone is (310) 319-4000.
- UCLA Santa Monica Medical Center1250 16th Street, Santa Monica, CA 90404 · Los Angeles CountyPhone(310) 319-4000
Source: Dmand AI Affiliation Data
Dr. Roy Vongtama is affiliated with 5 sites of care and 3 medical groups
Dr. Vongtama's primary practice is UCLA Santa Monica Medical Center in Santa Monica, California, part of University of California Health. Dr. Vongtama is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is UCLA Medical Group (UCLA Health). Dmand AI also links Dr. Vongtama to 1 more hospital, 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Roy Vongtama's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vongtama practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCLA Santa Monica Medical Center | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Roy Vongtama is one of 685 radiation oncologists in California
Radiation oncology is Dr. Vongtama's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Vongtama is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Vongtama's licenses on file in 2 states: California and Tennessee.
Specialties and state licenses
- Radiation oncology, CaliforniaPrimary
- Tennessee license
Radiation oncologists near Dr. Vongtama
Counts of radiation oncologists 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. Roy Vongtama billed Medicare for 101 services in 2024
CMS data shows 101 Medicare services from Dr. Vongtama across 1 procedure code in 2024, for 60 Medicare patients. Medicare paid $3,793 for them. Every service was in an office.
Dr. Vongtama's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 932024: 1019%
Dr. Vongtama compared with the California median for radiation oncologists, 2024
- Dr. Vongtama
- California median
- Medicare services
- 101vs 1,44493% below
- Medicare patients
- 60vs 16463% below
Medians across 633 radiation oncologists in California with Dmand AI profiles that report each measure.
Dr. Vongtama'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. Vongtama and other radiation oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Roy Vongtama treated 60 Medicare patients in 2024, average age 76
CMS counts 60 Medicare patients who saw Dr. Vongtama in 2024. The largest group is 65 to 74, with 25 patients. 75% of them have cancer, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.86, 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. Vongtama's median patient age at 63, with 53% women.
Dr. Vongtama's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Vongtama's Medicare patients by sex, 2024
- Women2847%
- Men3253%
Chronic conditions among Dr. Vongtama's Medicare patients, 2024
- Cancer75%
- High cholesterol75%
- High blood pressure72%
- Arthritis43%
- Diabetes28%
- Ischemic heart disease25%
- Atrial fibrillation23%
- Chronic kidney disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Vongtama'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
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Roy Vongtama scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Vongtama for performance year 2024, reported as part of a group. Dr. Vongtama accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Vongtama as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Vongtama's MIPS scores, performance year 2024
- 81of 100Final score
- 62.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 68of 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
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Dr. Roy Vongtama received $22 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Vongtama from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. INSYS Therapeutics Inc paid the most, $22.
Companies that paid Dr. Vongtama the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Roy Vongtama graduated from Jacobs School of Medicine and Biomedical Sciences
Dr. Vongtama graduated from Jacobs School of Medicine and Biomedical Sciences in 2000.
- Medical school
- Board certified in radiation oncology
Source: Dmand AI Professional Profile Data
Dr. Roy Vongtama accepts plans from 15 insurance carriers
Dr. Vongtama is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +7 more carriersWith a free account
Plan types Dr. Vongtama accepts, by number of carriers
- PPO10
- Medicare7
- HMO6
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Roy Vongtama'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 DataMedicare Physician & Other Practitioners - 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) |
| 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. Roy Vongtama
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. Roy Vongtama's NPI number?
Dr. Roy Vongtama's NPI number is 1083837058. It was assigned on April 10, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Roy Vongtama?
Dr. Roy Vongtama is a radiation oncologist in Santa Monica, California. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Roy Vongtama practice?
Dr. Vongtama practices at 1250 16th Street, Santa Monica, CA 90404. Dr. Vongtama's primary practice is UCLA Santa Monica Medical Center in Santa Monica, California, part of University of California Health. Dmand AI also links Dr. Vongtama to 1 hospital, 2 group practices and clinics and 2 medical groups.
What is Dr. Roy Vongtama's office phone number?
The practice phone on file for Dr. Vongtama is (310) 319-4000.
What is Dr. Roy Vongtama's medical license number?
Dr. Vongtama holds California license A78334, one of the licenses on file in 2 states.
Which states has Dr. Roy Vongtama been licensed in?
Dmand AI has state licenses on file for Dr. Vongtama in California (2002 to 2026) and Tennessee (2005 to 2008).
Which hospitals is Dr. Roy Vongtama affiliated with?
Dr. Vongtama practices at UCLA Santa Monica Medical Center in Santa Monica, California. Dr. Vongtama is also affiliated with Ronald Reagan UCLA Medical Center. Dmand AI links Dr. Vongtama to 1 more hospital.
What medical group is Dr. Roy Vongtama part of?
Dr. Vongtama is linked to UCLA Medical Group (UCLA Health). Dmand AI links Dr. Vongtama to 2 more medical groups.
Does Dr. Roy Vongtama accept Medicare?
Yes. CMS data shows Dr. Vongtama billed Medicare for 101 services in 2024, and Dr. Vongtama accepts Medicare assignment.
Does Dr. Roy Vongtama offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Vongtama as offering telehealth services.
Show 8 more questionsShow fewer questions
What is Dr. Roy Vongtama's MIPS score?
Dr. Vongtama's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
How many Medicare patients does Dr. Roy Vongtama see?
CMS counts 60 Medicare patients who saw Dr. Vongtama in 2024, with an average age of 76.
Is Dr. Roy Vongtama board certified?
Yes. Dr. Vongtama is board certified in radiation oncology by the American Board of Radiology.
What services does Dr. Roy Vongtama bill to Medicare?
In 2024, Dr. Vongtama's most billed Medicare services were radiation oncology (77014).
Where did Dr. Roy Vongtama go to medical school?
Dr. Vongtama graduated from Jacobs School of Medicine and Biomedical Sciences in 2000.
Has Dr. Roy Vongtama received payments from drug or device companies?
CMS Open Payments shows $22 in general payments to Dr. Vongtama from 1 company from 2017 to 2017. The largest total came from INSYS Therapeutics Inc.
How long has Dr. Roy Vongtama been practicing?
Dr. Vongtama graduated from medical school in 2000, 26 years ago.
What insurance does Dr. Roy Vongtama accept?
Dr. Vongtama is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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