David Ly, MD
Radiation Oncology Physician · Visalia, CA
David Ly, MD is a radiation oncology physician with a practice address in Visalia, California, and NPI 1477879864, issued on Apr 12, 2010. Check the license (California A141368, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Ly
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A141368 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4945 W Cypress Ave, Visalia, CA 93277
- Phone
- (559) 624-3100
- Enumerated
- Apr 12, 2010
- Record last updated
- Feb 19, 2026
- Medicaid ID
- 041529 AZ
- Medicare enrollment
- Enrolled (PECOS I20210326000431); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2010
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 4945 W Cypress Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Silvia Dominguez, NPNurse Practitioner1558335927
- Amitoj Gill, MDHematology & Oncology Physician1699022525
- Robert Havard, MDMedical Oncology Physician1225002694
- Shu Hsu, MDHematology (Internal Medicine) Physician1912971300
- Nancy Jacobus, NPPrimary Care Nurse Practitioner1538193974
- Riley Sherman, PHARMDPharmacist1215581327
Verify David Ly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A141368Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average radiation oncology physician in 2024
188 Medicare Part D claims for 96 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 42 claims were for opioids.
Most prescribed
- Ssd26 claims
- Hydrocodone-Acetaminophen20 claims
- Tamsulosin Hcl18 claims
- Dexamethasone16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $20.33
1 payment: food and beverage; the largest payer was Monteris Medical Corporation. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sequoia Radiation Oncology Services, IncVisalia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Ly among 735 radiation oncology physician records in California
David Ly, MD is one of 735 radiation oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 66% of them.
- NPI issued2010 · 66% of these records are older, 31% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2010 · median 2005 among the 545 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in Visalia → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Youssef Hanalla, MDVisalia, CA 932771437127545
- Veena Ramsinghani, MDVisalia, CA 932771871568097
- Danny Vazquez, MDVisalia, CA 932771730747791
- Dean Davis, M.D.Bakersfield, CA 933011619996139
- Luis Mariscal, M.D.Bakersfield, CA 933011821231614
- Marcher Thompson, M.D.Bakersfield, CA 933011063832681
- Behnood KhodayariBakersfield, CA 933061487920005
- Ajay Desai, M.D.Bakersfield, CA 933091124015706
Common questions
What is David Ly, MD's NPI number?
David Ly, MD's National Provider Identifier (NPI) is 1477879864, issued on Apr 12, 2010. An NPI identifies a provider in billing; it is not a license.
Where is David Ly, MD located?
The NPPES record lists a practice address at 4945 W Cypress Ave, Visalia, CA, 93277. Phone: (559) 624-3100. Providers update this record themselves, so call before visiting.
How can I verify David Ly, MD's license?
NPPES lists California license number A141368, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Ly, MD prescribe under Medicare Part D?
In 2024, David Ly, MD had 188 Medicare Part D claims for 96 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is David Ly, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.