DR. ROBERT PATRICK LUM M.D.
NPI 1770589707
Radiology - Radiation Oncology in Oxnard, CA

Q: What is Robert Lum's NPI number?

The NPI number for Robert Lum is 1770589707. It was assigned to this individual provider in the NPPES registry on June 23, 2005.

Q: What is Robert Lum'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 Robert Lum was last updated on August 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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 June 23, 2005PECOS EnrolledAccepts Medicare Assignment

77.86/100

CMS Quality Rating

1901 HOLSER WALK, STE 305, OXNARD, CA 93036(805) 485-2824(805) 485-2774 Get Directions Write a Review

NPPES record last updated: August 16, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Robert Patrick Lum M.d. NPPES

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

DR. ROBERT PATRICK LUM M.D. (NPI 1770589707) is an individual radiation oncology provider in Oxnard, California, licensed in California (A46608) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (1988).

NPPES Registry Identity

NPI1770589707

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameDR. ROBERT PATRICK LUMCredential: M.D.

Location Address1901 HOLSER WALK, STE 305Oxnard, CA 93036-2633

Mailing Address1901 Holser Walk, Ste 305Oxnard, CA 93036-2633 · (805) 485-2824 · Fax (805) 485-2774

Phone(805) 485-2824

Fax(805) 485-2774

Sole ProprietorYes

Medical School CMSClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv UniversityGraduated 1988

Enumeration DateJune 23, 2005

Last NPPES UpdateAugust 16, 2023

NPPES CertifiedAugust 16, 2023

✔ NPI 1770589707 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

License✔ Licensed in CA · A46608

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.

Also ListedSpecialistTaxonomy 174400000X · License A46608 (CA)

1901 HOLSER WALK, Oxnard, CA 93036

Open in Google Maps ↗

Other Identifiers 1

Medicaid00A460080CA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

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. Robert Patrick Lum M.d. 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 ID5597762609

PECOS Enrollment IDI20061102000626

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 Reassignments

Medicare enrollment records show Robert Lum reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Renewed Hope Radiation Oncology, Inc.

Same address

Oncology, Radiation

1901 HOLSER WALK, SUITE 305
Oxnard, CA 93036

Reassigned Medicare billing, California enrollment

NPI 1033163621 (805) 485-2824

J Robert West, M.D., Inc

85 mi

Dermatology

400 NEWPORT CENTER DR STE 702
Newport Beach, CA 92660

Reassigned Medicare billing, California enrollment
Medicare enrollment name: J Robert West MD Inc
121 clinicians in this Medicare group

NPI 1932154788 (949) 644-0101

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 21

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.

Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session G6015

Intensity-modulated radiation therapy (IMRT) is a type of cancer treatment. It uses advanced technology to manipulate photon beams of radiation to conform to the shape of a tumor. IMRT allows for the radiation dose to conform more precisely to the three-dimensional shape of the tumor by modulatingâ€”or controllingâ€”the intensity of the radiation beam. This can result in better tumor control and less harm to healthy tissue.

1,017 services32 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.

838 services41 patients

Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev G6012

Radiation therapy involves directing high-energy particles to destroy cancer cells. The technique targets 3 or more areas, using custom blocks for precise focus. Tangential ports, wedges, and rotational beams adjust the radiation's path, while compensators balance radiation dose. Electron beam therapy with 6-10 mev energy is used for deep-seated tumors.

596 services34 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.

422 services67 patients

High dose rate electronic brachytherapy, external 0394T

High Dose Rate Electronic Brachytherapy (HDR EBT) is a precise form of radiation therapy. It involves placing a tiny source of radiation directly into the area needing treatment. This allows a high dose of radiation to be delivered directly to the area, while reducing exposure to surrounding healthy tissues.

328 services38 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.

327 services38 patients

Continuing radiation therapy consultation per week 77336

Continuing radiation therapy consultation per week involves regular meetings with your healthcare team. These sessions help monitor your progress, manage side effects, and adjust your treatment plan if necessary. It's a key part of ensuring the effectiveness of your radiation therapy.

318 services66 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.

313 services65 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.

181 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.

173 services68 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.

77 services69 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

69 services69 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.

67 services65 patients

X-ray during radiation therapy 77417

An X-ray during radiation therapy is a medical process that helps in tracking the progress of your treatment. It uses small amounts of radiation to create images of your body's internal structure. This aids in ensuring the therapy is accurately targeting the problem area and not harming healthy tissues.

57 services13 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.

54 services40 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.

53 services39 patients

Special medical radiation therapy consultation 77370

A special medical radiation therapy consultation involves discussing the use of high-energy radiation to treat diseases, primarily cancer. It's a chance to understand the process, potential side effects, and benefits. It is a key step in planning your treatment.

53 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.

42 services30 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.

25 services24 patients

Special radiation therapy planning for delivery of external radiation 77321

Special radiation therapy planning involves mapping your body's needs for external radiation treatment. This process uses advanced imaging techniques to pinpoint the exact area requiring treatment, ensuring the radiation is delivered accurately and effectively, while minimizing exposure to healthy tissues.

18 services17 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.

17 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93036 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

$185.36 typical visit price

range $62.32 – $185.36

Typical copayment $46.34 (range $15.58 – $46.34)

Most-billed visit code 99205

Established Patient

$77.11 typical visit price

range $20.68 – $151.85

Typical copayment $19.27 (range $5.17 – $37.96)

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.

77.86/100

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

Scored as part of a group practice

Quality

58.05

Promoting Interoperability

Improvement Activities

Cost

73.99

Other Providers at the Same Location NPPES 4

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

RENEWED HOPE RADIATION ONCOLOGY, INC.

Clinic/Center (Oncology, Radiation)

1901 HOLSER WALK, SUITE 305
OXNARD, CA 93036

Ventura County (805) 485-2824

DR. ANNE IRELAND-GILL M.D.

Specialist

1901 HOLSER WALK, SUITE #305
OXNARD, CA 93036

Ventura County (805) 485-2824

DR. MACK DAVID TOYAMA DC, PA-C

Chiropractor

1901 HOLSER WALK, #315
OXNARD, CA 93036

Ventura County (805) 988-2273

SUPERIOR MOBILITY, INC.

Durable Medical Equipment & Medical Supplies (Customized Equipment)

1901 HOLSER WALK, SUITE 302
OXNARD, CA 93036

Ventura County (805) 640-1332

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 Robert Lum's NPI number?

The NPI number for Robert Lum is 1770589707. It was assigned to this individual provider in the NPPES registry on June 23, 2005.

Where is Robert Lum located?

Robert Lum practices at 1901 Holser Walk Ste 305, Oxnard, CA 93036. The listed phone number is (805) 485-2824.

What is Robert Lum's specialty?

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

Is Robert Lum enrolled in Medicare?

Yes. Robert Lum 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 organizations bill Medicare for Robert Lum's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Lum reassigns Medicare benefits to 2 organizations: Renewed Hope Radiation Oncology, Inc. (Oxnard, CA) and J Robert West, M.D., Inc (Newport Beach, CA). Each 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 Robert Lum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Lum accept?

Health plans from UnitedHealthcare list Robert Lum as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Robert Lum was last updated on August 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.