DR. DAVID LY MD
NPI 1477879864
Radiology - Radiation Oncology in Visalia, CA

Q: What is David Ly's NPI number?

The NPI number for David Ly is 1477879864. It was assigned to this individual provider in the NPPES registry on April 12, 2010.

Q: What is David Ly's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: When was this NPI record last updated?

The NPPES record for David Ly was last updated on February 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 12, 2010PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

4945 W CYPRESS AVE, VISALIA, CA 93277(559) 624-3100 Get Directions Write a Review

NPPES record last updated: February 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 1, 2025, Jul 21, 2022, Sep 12, 2017 and 3 more (6 updates tracked since 2015).

On this page

About Dr. David Ly Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DAVID LY MD (NPI 1477879864) is an individual radiation oncology provider in Visalia, California, licensed in California (A141368) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (2010).

NPPES Registry Identity

NPI1477879864

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameDR. DAVID LYCredential: MD

Location Address4945 W CYPRESS AVEVisalia, CA 93277-1592

Mailing Address4945 W Cypress AveVisalia, CA 93277-1592 · (559) 624-3100

Phone(559) 624-3100

Sole ProprietorYes

Medical School CMSClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv UniversityGraduated 2010

Enumeration DateApril 12, 2010

Last NPPES UpdateFebruary 19, 20266 updates tracked since enumeration

NPPES CertifiedFebruary 19, 2026

✔ NPI 1477879864 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

License✔ Licensed in CA · A141368

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

4945 W CYPRESS AVE, Visalia, CA 93277

Open in Google Maps ↗

Other Identifiers 5

OtherP01536506AZ · Railroad Medicare

OtherQZZ000000061638AZ · Mercy Care

Other3495287AZ · Cigna

Medicaid041529AZ

Other7140968AZ · Aetna

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. David Ly Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456583467

PECOS Enrollment IDI20210326000431

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show David Ly reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sequoia Radiation Oncology Services, Inc

Same address

Internal Medicine

4945 W CYPRESS AVE STE A
Visalia, CA 93277

Reassigned Medicare billing, California enrollment
2 clinicians in this Medicare group

NPI 1861091795 (559) 624-3100

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 37

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ct guidance for insertion of radiation therapy fields 77014

CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.

1,071 services75 patients

Ct guidance for insertion of radiation therapy fields 77014

590 services48 patients

Calculation of radiation therapy dose 77300

Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.

393 services89 patients

Radiation treatment management, 5 treatment sessions 77427

Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.

345 services116 patients

Design and construction of complex radiation treatment device 77334

The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.

200 services81 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

190 services151 patients

Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy G6002

Stereoscopic x-ray guidance is a technique used in radiation therapy. It involves taking multiple X-ray images from different angles to create a 3D picture of the area to be treated. This helps accurately pinpoint the exact location for radiation delivery, ensuring the therapy is as effective as possible.

190 services17 patients

Calculation of radiation therapy dose 77300

174 services43 patients

Radiation treatment management, 5 treatment sessions 77427

171 services70 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

96 services88 patients

Design and construction of complex radiation treatment device 77334

91 services46 patients

Complex radiation therapy planning 77263

Complex radiation therapy planning is a process to determine the most effective way to deliver radiation to a specific area in your body. It involves detailed imaging to map your body's structure, allowing for precise targeting of cancer cells while sparing healthy tissue.

88 services86 patients

Design and construction of radiation treatment device for high precision radiation therapy 77338

A radiation treatment device is custom-made for each patient to target cancer cells with high precision. It's designed to focus radiation on the tumor, sparing healthy tissue. This process ensures effective therapy while minimizing side effects.

83 services66 patients

Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy G6002

81 services11 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

70 services70 patients

Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 77280

This procedure involves gathering essential information to create the best radiation treatment plan for a specific area. It includes scanning the treatment area and using this data to calculate the precise dose of radiation needed to target the disease effectively, while sparing healthy tissue.

69 services40 patients

High precision radiation therapy planning 77301

High precision radiation therapy planning involves detailed mapping of your body to target cancer cells accurately. Advanced imaging techniques help identify the exact location of the tumor, minimizing harm to healthy tissues. This personalized approach enhances effectiveness and reduces side effects.

63 services61 patients

Special radiation therapy planning 77331

Special radiation therapy planning is a process to determine the most effective way to deliver radiation treatment. It involves imaging studies to map your body's internal structure, which helps in targeting the exact area needing treatment while sparing healthy tissues.

50 services24 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

46 services46 patients

Complex radiation therapy planning 77263

44 services44 patients

Design and construction of radiation treatment device for high precision radiation therapy 77338

36 services33 patients

Design and construction of simple radiation treatment device 77332

A simple radiation treatment device is designed and built to target specific areas in your body with high energy rays. This process is carefully planned to ensure that the radiation accurately reaches the area needing treatment, while minimizing exposure to healthy tissues.

35 services26 patients

Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 77290

This procedure involves collecting necessary data to plan the best radiation treatment. It may cover 3 or more areas or any area requiring special attention. Data collection includes imaging scans and tests to understand the disease's extent and to tailor a precise, effective treatment plan.

33 services33 patients

High precision radiation therapy planning 77301

32 services31 patients

Complex radiation therapy planning for delivery of external radiation 77307

Complex radiation therapy planning involves creating a detailed plan to deliver targeted radiation doses. The process includes imaging scans to identify the area needing treatment, and designing a specific radiation plan to protect healthy tissue while effectively treating the disease.

30 services20 patients

Special radiation treatment 77470

Special radiation treatment is a medical procedure that uses high-energy rays to destroy or damage cancer cells. It's a targeted approach that aims to minimize harm to healthy tissues. The treatment duration varies based on individual health conditions.

29 services27 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

28 services28 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

25 services25 patients

3d radiation therapy planning 77295

3D radiation therapy planning is a procedure that uses computer imaging to map out the area needing treatment. This ensures the radiation targets the disease precisely, while minimizing exposure to surrounding healthy tissues. It's a key step in preparing for effective radiation therapy.

24 services24 patients

Special radiation treatment 77470

21 services21 patients

Diagnostic exam of voice box using a flexible endoscope 31575

This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.

18 services15 patients

Obtaining respiratory data needed to develop the optimal radiation treatment 77293

Obtaining respiratory data is vital for optimal radiation treatment. This involves tracking your breathing patterns to ensure the precise delivery of radiation to the target area, minimizing damage to healthy tissue. It's a non-invasive process and contributes to effective treatment.

16 services16 patients

Diagnostic exam of voice box using a flexible endoscope 31575

15 services14 patients

Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 77290

14 services14 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

14 services14 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

14 services14 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93277 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$176.60 typical visit price

range $58.87 – $176.60

Typical copayment $44.15 (range $14.71 – $44.15)

Most-billed visit code 99205

Established Patient

$73.16 typical visit price

range $19.28 – $144.60

Typical copayment $18.29 (range $4.82 – $36.15)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

Improvement Activities

Reported Quality Measures

Advance Care Plan

100%191 patients5/55-star benchmark: 100%

Documentation of Current Medications in the Medical Record

100%320 patients5/55-star benchmark: 100%

Elder Maltreatment Screen and Follow-Up Plan

100%208 patients

Oncology: Medical and Radiation - Plan of Care for Pain

100%45 patients5/55-star benchmark: 100%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

100%20 patients5/55-star benchmark: 100%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients screened: 100% · 189 patients

100%189 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 11

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KAWEAH DELTA HEALTH CARE DISTRICT

Clinic/Center (Oncology)

4945 W CYPRESS AVE
VISALIA, CA 93277

Tulare County (559) 624-3000

RILEY N SHERMAN PHARMD

Pharmacist

4945 W CYPRESS AVE
VISALIA, CA 93277

Tulare County (559) 624-3000

ROBERT ALLAN HAVARD JR. MD

Internal Medicine (Medical Oncology)

4945 W CYPRESS AVE, STE C
VISALIA, CA 93277

Tulare County (559) 624-3000

SEQUOIA ONCOLOGY MEDICAL ASSOC

Clinic/Center (Oncology)

4945 W CYPRESS AVE, STE C
VISALIA, CA 93277

Tulare County (559) 624-3000

NANCY LEE JACOBUS NP

Nurse Practitioner (Primary Care)

4945 W CYPRESS AVE
VISALIA, CA 93277

Tulare County (559) 624-3000

SILVIA DOMINGUEZ NP

Nurse Practitioner

4945 W CYPRESS AVE, STE C
VISALIA, CA 93277

Tulare County (559) 624-3000

ADVANCED RADIATION ONCOLOGY SERVICES

Radiology (Radiation Oncology)

4945 W CYPRESS AVE, STE A
VISALIA, CA 93277

Tulare County (559) 624-3100

AMITOJ SINGH GILL MD

Internal Medicine (Hematology & Oncology)

4945 W CYPRESS AVE
VISALIA, CA 93277

Tulare County (559) 624-3100

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David Ly's NPI number?

The NPI number for David Ly is 1477879864. It was assigned to this individual provider in the NPPES registry on April 12, 2010.

Where is David Ly located?

David Ly practices at 4945 W Cypress Ave, Visalia, CA 93277. The listed phone number is (559) 624-3100.

What is David Ly's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is David Ly enrolled in Medicare?

Yes. David Ly is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for David Ly's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Ly reassigns Medicare benefits to Sequoia Radiation Oncology Services, Inc (Visalia, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Ly's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for David Ly was last updated on February 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.