DR. BRIAN J LEBERTHON M.D.
NPI 1326023979
Internal Medicine - Hematology & Oncology in West Covina, CA

Q: What is Brian Leberthon's NPI number?

The NPI number for Brian Leberthon is 1326023979. It was assigned to this individual provider in the NPPES registry on December 7, 2005.

Q: What is Brian Leberthon's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Brian Leberthon was last updated on December 14, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 December 07, 2005PECOS EnrolledAccepts Medicare Assignment

92.36/100

CMS Quality Rating

1135 S SUNSET AVE, SUITE # 207, WEST COVINA, CA 91790(626) 338-9560(626) 338-9360 Get Directions Write a Review

NPPES record last updated: December 14, 2016. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Brian J Leberthon M.d. NPPES

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

DR. BRIAN J LEBERTHON M.D. (NPI 1326023979) is an individual hematology & oncology provider in West Covina, California, licensed in California (G79934) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Southern California Keck School Of Medicine (1993).

NPPES Registry Identity

NPI1326023979

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. BRIAN J LEBERTHONCredential: M.D.

Location Address1135 S SUNSET AVE, SUITE # 207West Covina, CA 91790-3937

Mailing Address1135 S Sunset Ave, Suite # 207West Covina, CA 91790-3937 · (626) 338-9560 · Fax (626) 338-9360

Phone(626) 338-9560

Fax(626) 338-9360

Sole ProprietorNo

Medical School CMSUniversity Of Southern California Keck School Of MedicineGraduated 1993

Enumeration DateDecember 7, 2005

Last NPPES UpdateDecember 14, 2016

✔ NPI 1326023979 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in CA · G79934

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

1135 S SUNSET AVE, West Covina, CA 91790

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Other Identifiers 3

Medicare UPING98159CA

Medicaid1821202060CA

Medicaid00G799340CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Brian J Leberthon 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 ID7719944867

PECOS Enrollment IDI20041213000326

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.

Areas of Expertise CMS Part B claims 17

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.

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

4,320 services46 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.

1,080 services218 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

784 services143 patients

Infusion into a vein for hydration, each additional hour 96361

This procedure involves delivering fluids directly into your vein to keep your body hydrated. It is typically done when oral hydration is insufficient. Each additional hour means more fluid is infused to ensure adequate hydration.

461 services22 patients

Infusion into a vein for therapy, prevention, or diagnosis, each additional hour 96366

This procedure involves delivering medication, fluids, or nutrients directly into your vein. This is done to treat, prevent, or diagnose various conditions. Each additional hour refers to the extended time you may need to receive these substances for optimal results.

421 services21 patients

Infusion, normal saline solution, 250 cc J7050

An infusion of normal saline solution, 250 cc, involves administering a sterile saltwater solution into your body through a vein, usually in your arm. This helps to replenish fluids, maintain hydration, and balance electrolytes in your body.

265 services15 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

257 services58 patients

Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less 96367

This procedure involves injecting fluids or medication directly into your vein. It's used for treatment, prevention, or diagnosis. An additional sequential infusion may be given within an hour if needed. This helps to ensure the medicine is distributed effectively in your body.

217 services26 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

203 services23 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

181 services24 patients

Injection, diphenhydramine hcl, up to 50 mg J1200

Diphenhydramine HCL injection is a medicine given to alleviate symptoms of allergies, colds, or hay fever. It can also help with motion sickness and certain symptoms of Parkinson's disease. Up to 50 mg may be administered depending on your condition.

156 services23 patients

Administration of chemotherapy into vein, each additional hour 96415

Chemotherapy is a treatment method that uses drugs to destroy cancer cells. The drugs are administered into a vein, usually in the arm. Each additional hour of chemotherapy allows for more of the medication to enter your bloodstream to fight against the cancer cells.

137 services16 patients

Infusion, normal saline solution, sterile (500 ml = 1 unit) J7040

An infusion of a normal saline solution is a common medical procedure. Sterile saline (salt water) is administered into your bloodstream via a drip. This helps to maintain fluid balance in your body, especially when you're unable to drink enough liquids.

45 services11 patients

Infusion into a vein for hydration, 31-60 minutes 96360

This is a procedure where a sterile solution is administered into your vein to help restore body fluid balance. It typically lasts between 31-60 minutes. It's a safe, common treatment for dehydration or to deliver medication.

39 services14 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.

39 services29 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.

32 services32 patients

Smoking and tobacco use intensive counseling, 4-10 minutes 99406

This service provides brief, intensive counseling (4-10 minutes) to support you in quitting smoking or tobacco use. It involves discussing the risks of tobacco use, benefits of quitting, and strategies to help you stop. It's a critical step towards a healthier lifestyle.

29 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91790 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

$187.60 typical visit price

range $62.96 – $187.60

Typical copayment $46.90 (range $15.74 – $46.90)

Most-billed visit code 99205

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

Most-billed visit code 99214

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.

92.36/100

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

Individually scored

Quality

100

Improvement Activities

Cost

41.2

Reported Quality Measures

Advance Care Plan

100%285 patients5/55-star benchmark: 100%

Controlling High Blood Pressure

84%191 patients4/55-star benchmark: 98%

Diabetes Mellitus: Diabetic Foot and Ankle Care, Peripheral Neuropathy - Neurological Evaluation

86%168 patients4/55-star benchmark: 100%

Documentation of Current Medications in the Medical Record

100%3,654 patients5/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

100%740 patients5/55-star benchmark: 100%

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

Patients combinedPopulations: 100% · 80 patients

Patients screened: 100% · 639 patients

100%639 patients5/55-star benchmark: 100%

Preventive Care and Screening: Unhealthy Alcohol Use: Screening & Brief Counseling

Patients screened: 100% · 634 patients

100%634 patients

Screening for Osteoporosis for Women Aged 65-85 Years of Age

64%135 patients3/55-star benchmark: 98%

Urinary Incontinence: Assessment of Presence or Absence of Urinary Incontinence in Women Aged 65 Years and Older

100%184 patients5/55-star benchmark: 100%

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.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

2 suppliers13 claims30 services$10.50 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

4 suppliers15 claims46 services$1.59 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

1 supplier12 claims12 services$784.18 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

1 supplier35 claims35 services$3.42 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

GABRIEL BAILEY DO

Student in an Organized Health Care Education/Training Program

1135 S SUNSET AVE
WEST COVINA, CA 91790

Los Angeles County (626) 732-8390

WILDON LIN MD, INC

Clinic/Center

1135 S SUNSET AVE, SUITE 307
WEST COVINA, CA 91790

Los Angeles County (626) 962-1111

SAN GABRIEL VALLEY PERINATAL MEDICAL GROUP, INC

Obstetrics & Gynecology (Maternal & Fetal Medicine)

1135 S SUNSET AVE, STE 402
WEST COVINA, CA 91790

Los Angeles County (626) 337-4425

DR. PERPETUA ALEGRADO LAWAS-ALEJO

Pediatrics (Neonatal-Perinatal Medicine)

1135 S SUNSET AVE
WEST COVINA, CA 91790

Los Angeles County (626) 813-3716

HOOSHANG DEAH FARSHIDI MD

Obstetrics & Gynecology

1135 S SUNSET AVE, SUITE #303
W COVINA, CA 91790

Los Angeles County (626) 856-3686

BILL W. TANG, MD A MED CORP

Clinic/Center (Medical Specialty)

1135 S SUNSET AVE, #206
WEST COVINA, CA 91790

Los Angeles County (626) 338-3788

PACIFIC SLEEP MEDICINE, A MEDICAL CORP

Clinic/Center (Sleep Disorder Diagnostic)

1135 S SUNSET AVE, SUITE 307
WEST COVINA, CA 91790

Los Angeles County (626) 480-0033

DAVID E ZINKE M D INC

Specialist

1135 S SUNSET AVE, SUITE 315
WEST COVINA, CA 91790

Los Angeles County (626) 814-4721

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 Brian Leberthon's NPI number?

The NPI number for Brian Leberthon is 1326023979. It was assigned to this individual provider in the NPPES registry on December 7, 2005.

Where is Brian Leberthon located?

Brian Leberthon practices at 1135 S Sunset Ave Suite # 207, West Covina, CA 91790. The listed phone number is (626) 338-9560.

What is Brian Leberthon's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Brian Leberthon enrolled in Medicare?

Yes. Brian Leberthon 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.

When was this NPI record last updated?

The NPPES record for Brian Leberthon was last updated on December 14, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.