Primary practice
Epic Care
Antioch, California
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Dr. Swamy practices at Epic Care in Antioch, California.
Dr. Swamy's NPI, 1427377431, was assigned on June 1, 2010. Dr. Swamy graduated from University of Wisconsin-Madison in 2005. Dr. Swamy holds California license A96498.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Swamy's primary practice is Epic Care, at 2345 Country Hills Dr, Antioch, CA 94509 in Contra Costa County. The practice phone is (925) 778-0679.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Swamy's primary practice is Epic Care in Antioch, California. Dr. Swamy is also affiliated with John Muir Medical Center, Walnut Creek. The medical group on file is Epic Care. Dmand AI also links Dr. Swamy to 2 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Swamy practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Epic Care | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Radiation oncology is Dr. Swamy's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Swamy is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Swamy's licenses on file in 3 states: California, Florida and Pennsylvania.
Dmand AI lists anal cancer radiation, bladder cancer radiation, bone cancer radiation, brain cancer radiation, brain tumor radiation, breast cancer radiation, cancer radiation-upper GI and cervical cancer radiation among the conditions Dr. Swamy treats.
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
CMS data shows 3,859 Medicare services from Dr. Swamy across 31 procedure codes in 2024, for 213 Medicare patients. Medicare paid $725,461 for them. Every service was in an office.
Medians across 633 radiation oncologists in California with Dmand AI profiles that report each measure.
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
CMS counts 213 Medicare patients who saw Dr. Swamy in 2024. The largest group is 65 to 74, with 100 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 62% are also on Medicaid. Their average risk score is 1.84, 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. Swamy's median patient age at 59, with 61% women.
Share of Medicare patients with each condition. A patient can have several.
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Median age 59
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
In 2024, Dr. Swamy wrote 86 Medicare Part D claims for 40 patients. 86% of them were for generic drugs. CMS names the drug for 18 of them, across 1 drug with 11 or more claims each, at $264 in total drug cost. In 2023, CMS named 13 claims across 1 drug.
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Drugs named by CMS: 1 in 2024, 1 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. Swamy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Swamy as offering telehealth.
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dmand AI links Dr. Swamy to 4 clinical trials, 3 of them phase 3 studies. 2 are still active or recruiting. Conditions studied include Breast Neoplasms, Carcinoma, Intraductal, Noninfiltrating and Pancreatic Intraductal Neoplasms. National Cancer Institute (NCI) sponsors the most, 2.
Conditions in Dr. Swamy's trials
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
CMS Open Payments shows 294 general payments to Dr. Swamy from 68 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $756.
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Swamy graduated from University of Wisconsin-Madison in 2005.
Source: Dmand AI Professional Profile Data
Dr. Swamy is in network with 16 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.
Source: Dmand AI Insurance Network 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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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
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Dr. Uma G. Swamy's NPI number is 1427377431. It was assigned on June 1, 2010, and it is active in the NPI Registry.
Dr. Uma G. Swamy is a radiation oncologist in Antioch, California. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Dr. Swamy practices at 2345 Country Hills Dr, Antioch, CA 94509. Dr. Swamy's primary practice is Epic Care in Antioch, California. Dmand AI also links Dr. Swamy to 2 hospitals and 1 group practice or clinic.
The practice phone on file for Dr. Swamy is (925) 778-0679.
Dr. Swamy holds California license A96498, one of the licenses on file in 3 states.
Dmand AI has state licenses on file for Dr. Swamy in California (2006 to 2026), Florida (2010 to 2014) and Pennsylvania (2009).
Dr. Swamy is affiliated with John Muir Medical Center, Walnut Creek. Dmand AI links Dr. Swamy to 2 more hospitals.
Dr. Swamy is linked to Epic Care.
Yes. CMS data shows Dr. Swamy billed Medicare for 3,859 services in 2024, and Dr. Swamy accepts Medicare assignment.
Yes. The CMS Doctors and Clinicians file lists Dr. Swamy as offering telehealth services.
CMS counts 213 Medicare patients who saw Dr. Swamy in 2024, with an average age of 74.
Yes. Dr. Swamy is board certified in radiation oncology by the American Board of Radiology.
In 2024, Dr. Swamy's most billed Medicare services were medical supplies or transport (A9585), radiation oncology (77014) and medicare service (G6015).
Dr. Swamy graduated from University of Wisconsin-Madison in 2005.
In 2024 Medicare Part D data, Dr. Swamy's most prescribed drugs by claims were Dexamethasone.
CMS Open Payments shows $7,155 in general payments to Dr. Swamy from 68 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
Dr. Swamy graduated from medical school in 2005, 21 years ago.
Dr. Swamy has worked on 4 clinical trials.
Dr. Swamy is in network with 16 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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