Dr. William Richard Silveira, MD

  • Clovis, CA
  • Radiation oncologist
NPI1447494398PAC ID3072739564
Medicare services, 2024
3,278
Medicare patients, 2024
312
Part D claims, 2024
86
Publications
7
Clinical trials
2
Practice address
2755 Herndon Ave, Clovis, CA 93611
Practice phone
Call (559) 324-4000
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Clovis Community Medical Center

Hospital · Clovis, California

See all 5 affiliations

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Dr. William Richard Silveira is a radiation oncologist in Clovis, California

Dr. Silveira practices at Clovis Community Medical Center in Clovis, California, part of Community Health System.

Dr. Silveira's NPI, 1447494398, was assigned on April 22, 2009. Dr. Silveira graduated from Harvard Medical School in 2009. Dr. Silveira holds California license A115447.

NPI and contact details
Medicare PAC ID
3072739564
NPI enumeration date
April 22, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(559) 324-4000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
43
Medical school graduation
2009

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. William Richard Silveira practices at Clovis Community Medical Center in Clovis, California

Dr. Silveira's primary practice is Clovis Community Medical Center, at 2755 Herndon Ave, Clovis, CA 93611 in Fresno County. The practice phone is (559) 324-4000.

Source: Dmand AI Affiliation Data

Dr. William Richard Silveira is affiliated with 4 sites of care and 1 medical group

Dr. Silveira's primary practice is Clovis Community Medical Center in Clovis, California, part of Community Health System. Dr. Silveira is also affiliated with Community Regional Medical Center. The medical group on file is Community Health Partners. Dmand AI also links Dr. Silveira to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Silveira

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. William Richard Silveira's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Silveira practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Clovis Community Medical CenterAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. William Richard Silveira is one of 685 radiation oncologists in California

Radiation oncology is Dr. Silveira's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Silveira is board certified in radiation oncology by the American Board of Radiology. Dr. Silveira is licensed in California.

Specialties and state licenses

  • Radiation oncology, CaliforniaPrimaryLicense A115447 · 2011 to 2026 · taxonomy 2085R0001X

Clinical focus

Dmand AI lists bone cancer radiation, brain cancer radiation, brain tumor radiation, breast cancer radiation, cancer radiation-upper GI, cervical cancer radiation, colorectal cancer radiation and head & neck cancer radiation among the conditions Dr. Silveira treats.

Radiation oncologists near Dr. Silveira

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. William Richard Silveira billed Medicare for 3,278 services in 2024

CMS data shows 3,278 Medicare services from Dr. Silveira across 20 procedure codes in 2024, for 312 Medicare patients. Medicare paid $220,595 for them.

Medicare services, 20243,278
Medicare patients312
Paid by Medicare$220,595
Procedure codes20

Dr. Silveira's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 3,0562024: 2,8148%
Office and hospital visits
2023: 4942024: 40019%
Other services
2023: 02024: 64

Where Dr. Silveira's Medicare services took place, 2024

  • In an office2267%
  • In a facility3,05293%

Dr. Silveira compared with the California median for radiation oncologists, 2024

  • Dr. Silveira
  • California median
Medicare services
3,278vs 1,4442.3 times
Medicare patients
312vs 16490% above
Part D claims
20vs 3238% below

Medians across 633 radiation oncologists in California with Dmand AI profiles that report each measure.

Dr. Silveira'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.

See all procedures by Dr. Silveira

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Silveira and other radiation oncologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. William Richard Silveira treated 312 Medicare patients in 2024, average age 73

CMS counts 312 Medicare patients who saw Dr. Silveira in 2024. The largest group is 65 to 74, with 158 patients. 75% of them have cancer, and 75% have high blood pressure. 22% are also on Medicaid. Their average risk score is 1.67, 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. Silveira's median patient age at 69, with 55% women.

Medicare patients, 2024312
Average age73
Average risk score1.67
Also on Medicaid22%

Dr. Silveira's Medicare patients by age, 2024

Dr. Silveira's Medicare patients by sex, 2024

  • Women17656%
  • Men13644%

Chronic conditions among Dr. Silveira's Medicare patients, 2024

  1. Cancer75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Arthritis36%
  5. Diabetes33%
  6. Ischemic heart disease29%
  7. Chronic kidney disease25%
  8. Anxiety22%

Share of Medicare patients with each condition. A patient can have several.

Dr. Silveira'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

  • Women55%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. William Richard Silveira wrote 86 Medicare Part D claims in 2024

In 2024, Dr. Silveira wrote 86 Medicare Part D claims for 42 patients. 90% of them were for generic drugs. CMS names the drug for 20 of them, across 1 drug with 11 or more claims each, at $374 in total drug cost. In 2023, CMS named 17 claims across 1 drug.

Part D claims, 202486
Drugs named by CMS1
Total drug cost$374
Part D patients42

Dr. Silveira's Part D claims by kind of drug, 2024

  • Generic77 claims90%
  • Brand-name and other9 claims10%

Dr. Silveira'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 172024: 2018%

Drugs named by CMS: 1 in 2024, 1 in 2023.

See all prescribing by Dr. Silveira

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. William Richard Silveira scored 92 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Silveira for performance year 2024, reported as part of a group. Dr. Silveira accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Silveira as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Silveira's MIPS scores, performance year 2024

  • 92of 100Final score
  • 78.6of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 75of 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. William Richard Silveira has 7 publications on record

Dmand AI links 7 papers to Dr. Silveira, published from 2015 to 2019. The most frequent topics are Radiation Oncology and Tobacco Use Cessation. Dr. Silveira's most frequent co-authors are Steve Braunstein, MD, PhD, Shannon Elizabeth Fogh, MD and Alina Uzelac, DO.

Papers7
Years published2015 to 2019

Dr. Silveira's papers by year, 2015 to 2019

Topics Dr. Silveira writes about most

  • Radiation Oncology
  • Tobacco Use Cessation

Dr. Silveira's most frequent co-authors

Recent publications by Dr. Silveira

See all 7 publications and co-authors

See who Dr. Silveira researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Silveira works with, so you can find a warm path to the right radiation oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. William Richard Silveira has worked on 2 clinical trials

Dmand AI links Dr. Silveira to 2 clinical trials, 2 of them phase 3 studies. 1 is still active or recruiting. Conditions studied include Lung Neoplasms, Pancreatic Intraductal Neoplasms and Neoplasms, Ductal, Lobular, and Medullary.

Conditions in Dr. Silveira's trials

  • Lung Neoplasms
  • Pancreatic Intraductal Neoplasms
  • Neoplasms, Ductal, Lobular, and Medullary
  • Thoracic Neoplasms

Investigators on the most trials with Dr. Silveira

Recent clinical trials with Dr. Silveira

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. William Richard Silveira received $302 in industry payments from 2016 to 2024

CMS Open Payments shows 11 general payments to Dr. Silveira from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Varian Medical Systems, Inc. paid the most, $111.

General payments to Dr. Silveira by program year, 2016 to 2024

Companies that paid Dr. Silveira the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Silveira

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. William Richard Silveira graduated from Harvard Medical School

Dr. Silveira graduated from Harvard Medical School in 2009. Dr. Silveira is a member of AMA and ASTRO.

  1. Medical schoolHarvard Medical School
  2. Board certified in radiation oncologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. William Richard Silveira accepts plans from 15 insurance carriers

Dr. Silveira is in network with 15 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Silveira accepts, by number of carriers

  1. PPO9
  2. HMO7
  3. Medicare6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. William Richard Silveira's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. William Richard Silveira

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. William Richard Silveira's NPI number?

Dr. William Richard Silveira's NPI number is 1447494398. It was assigned on April 22, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. William Richard Silveira?

Dr. William Richard Silveira is a radiation oncologist in Clovis, California. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. William Richard Silveira practice?

Dr. Silveira practices at 2755 Herndon Ave, Clovis, CA 93611. Dr. Silveira's primary practice is Clovis Community Medical Center in Clovis, California, part of Community Health System. Dmand AI also links Dr. Silveira to 1 hospital and 1 group practice or clinic.

What is Dr. William Richard Silveira's office phone number?

The practice phone on file for Dr. Silveira is (559) 324-4000.

What is Dr. William Richard Silveira's medical license number?

Dr. Silveira holds California license A115447.

Which hospitals is Dr. William Richard Silveira affiliated with?

Dr. Silveira practices at Clovis Community Medical Center in Clovis, California. Dr. Silveira is also affiliated with Community Regional Medical Center. Dmand AI links Dr. Silveira to 1 more hospital.

What medical group is Dr. William Richard Silveira part of?

Dr. Silveira is linked to Community Health Partners.

Does Dr. William Richard Silveira accept Medicare?

Yes. CMS data shows Dr. Silveira billed Medicare for 3,278 services in 2024, and Dr. Silveira accepts Medicare assignment.

Does Dr. William Richard Silveira offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Silveira as offering telehealth services.

What is Dr. William Richard Silveira's MIPS score?

Dr. Silveira's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. William Richard Silveira see?

CMS counts 312 Medicare patients who saw Dr. Silveira in 2024, with an average age of 73.

Is Dr. William Richard Silveira board certified?

Yes. Dr. Silveira is board certified in radiation oncology by the American Board of Radiology.

What services does Dr. William Richard Silveira bill to Medicare?

In 2024, Dr. Silveira's most billed Medicare services were radiation oncology (77014), radiation oncology (77300) and radiation oncology (77334).

Where did Dr. William Richard Silveira go to medical school?

Dr. Silveira graduated from Harvard Medical School in 2009.

What drugs does Dr. William Richard Silveira prescribe most?

In 2024 Medicare Part D data, Dr. Silveira's most prescribed drugs by claims were Dexamethasone.

Has Dr. William Richard Silveira received payments from drug or device companies?

CMS Open Payments shows $302 in general payments to Dr. Silveira from 5 companies from 2016 to 2024. The largest total came from Varian Medical Systems, Inc.

How long has Dr. William Richard Silveira been practicing?

Dr. Silveira graduated from medical school in 2009, 17 years ago.

Does Dr. William Richard Silveira do research?

Dmand AI links 7 publications to Dr. Silveira, published from 2015 to 2019. Dr. Silveira has worked on 2 clinical trials.

Who does Dr. William Richard Silveira publish with?

Dr. Silveira's most frequent co-authors are Steve Braunstein, MD, PhD (2 shared papers), Shannon Elizabeth Fogh, MD (2 shared papers) and Alina Uzelac, DO (2 shared papers).

What insurance does Dr. William Richard Silveira accept?

Dr. Silveira is in network with 15 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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