DR. LEONID KLEYNBERG M.D.
NPI 1891750212
Internal Medicine - Hematology & Oncology in Los Angeles, CA

Q: What is Leonid Kleynberg's NPI number?

The NPI number for Leonid Kleynberg is 1891750212. It was assigned to this individual provider in the NPPES registry on April 19, 2006.

Q: What is Leonid Kleynberg'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 Leonid Kleynberg was last updated on November 17, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 April 19, 2006PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

6221 WILSHIRE BLVD, SUITE 504, LOS ANGELES, CA 90048(323) 965-9995(323) 965-5678 Get Directions Write a Review

NPPES record last updated: November 17, 2011. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Leonid Kleynberg M.d. NPPES

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

DR. LEONID KLEYNBERG M.D. (NPI 1891750212) is an individual hematology & oncology provider in Los Angeles, California, licensed in California (A76900) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1976).

NPPES Registry Identity

NPI1891750212

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. LEONID KLEYNBERGCredential: M.D.

Location Address6221 WILSHIRE BLVD, SUITE 504Los Angeles, CA 90048-5201

Mailing Address6221 Wilshire Blvd, Suite 504Los Angeles, CA 90048-5201 · (323) 965-9995 · Fax (323) 965-5678

Phone(323) 965-9995

Fax(323) 965-5678

Sole ProprietorYes

Medical School CMSOtherGraduated 1976

Enumeration DateApril 19, 2006

Last NPPES UpdateNovember 17, 2011

✔ NPI 1891750212 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 · A76900

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.

6221 WILSHIRE BLVD, Los Angeles, CA 90048

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Other Identifiers 3

Medicare ID-Type UnspecifiedWA76900ACA

Medicaid00A769000CA

Medicare UPINH06887CA

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. Leonid Kleynberg 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 ID9032008214

PECOS Enrollment IDI20040315000569

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 34

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, filgrastim (g-csf), excludes biosimilars, 1 microgram J1442

Filgrastim (G-CSF) is a medication given via injection to stimulate your body's production of neutrophils, a type of white blood cell that fights infection. It's often used in patients with low neutrophil counts due to certain treatments or conditions.

36,000 services31 patients

Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg J1569

The Gammagard Liquid injection is a type of immune globulin therapy. It's used to boost your body's immune system, helping it fight off infections. The therapy involves injecting a liquid form of proteins, collected from healthy donors, into your body. This is a 500mg dose.

18,170 services13 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.

13,832 services184 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.

7,033 services185 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

5,985 services67 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.

5,778 services189 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

4,462 services261 patients

Unclassified drugs J3490

Unclassified drugs are medications that don't fit into an existing category or class due to their unique properties or uses. They may be used for various conditions and their effects may differ widely. Always ask your healthcare provider for more information about these drugs.

4,024 services190 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.

3,765 services173 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.

3,573 services182 patients

Injection, rituximab, 10 mg J9312

Rituximab is a medication given via injection. It's used to treat certain types of cancer and autoimmune diseases. The 10 mg dosage refers to the amount of the drug in the injection. It works by targeting and destroying specific cells, helping your body's immune system.

3,500 services12 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

3,079 services105 patients

Injection, palonosetron hcl, 25 mcg J2469

Palonosetron HCL is an injection used to prevent nausea and vomiting caused by chemotherapy. It works by blocking a natural substance (serotonin) in the body that can cause vomiting. This helps improve your comfort during cancer treatment.

2,620 services18 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.

1,964 services72 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.

1,696 services113 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.

1,642 services104 patients

Injection, romiplostim, 10 micrograms J2796

Romiplostim is a medication given via injection to help your body produce more platelets, which are needed for normal blood clotting. It is commonly used in patients with chronic immune thrombocytopenia, a condition causing low platelet levels.

1,355 services11 patients

Injection, ceftriaxone sodium, per 250 mg J0696

Ceftriaxone sodium is an antibiotic injection used to treat a variety of bacterial infections. Each injection contains 250 mg of the medicine. It works by stopping the growth of bacteria in your body.

1,128 services17 patients

Injection, iron dextran, 50 mg J1750

Iron dextran injection, 50 mg, is a treatment to supplement iron in the body, a crucial element for blood production. It's typically used when oral iron intake is insufficient or not possible. The injection is given by a healthcare professional.

860 services48 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.

508 services23 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.

483 services100 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.

480 services138 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.

394 services42 patients

Infusion, albumin (human), 25%, 50 ml P9047

This is a procedure where a solution of human albumin, a protein that helps maintain blood volume and pressure, is administered into your bloodstream. The 25% indicates the concentration of albumin in the solution, and 50 ml is the volume of the solution to be given.

255 services23 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.

231 services23 patients

Infusion, albumin (human), 5%, 50 ml P9041

This procedure involves the intravenous delivery of a 5% albumin solution. Albumin, a protein made by the liver, helps maintain fluid balance in your body. The 50 ml volume refers to the amount of solution provided. This treatment can help if your albumin levels are low due to illness or injury.

205 services11 patients

Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg J3420

This is a procedure where a small dose of Vitamin B-12, also known as Cyanocobalamin, is injected into your body. This vitamin is essential for nerve function and the production of red blood cells. It's often used to treat vitamin B-12 deficiency.

192 services73 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.

118 services20 patients

Drawing of blood for a medical problem 99195

Drawing blood is a simple procedure where a needle is inserted into a vein, usually in your arm, to collect a small sample. This sample helps in diagnosing any medical issues you may have. You might feel a small prick, but overall, it's a quick and safe process.

113 services17 patients

Administration of additional new drug or substance into vein, 1 hour or less 96417

This procedure involves introducing a new drug or substance into your vein, typically via an IV drip. It lasts for an hour or less. This method allows the substance to quickly reach your bloodstream, ensuring rapid and effective treatment.

111 services13 patients

Injection, zoledronic acid, 1 mg J3489

Zoledronic acid is a medication given via injection to strengthen bones. It's often used in patients with osteoporosis or certain types of cancer. The injection helps reduce the risk of fractures and other bone complications.

90 services16 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

51 services51 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

30 services30 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.

26 services26 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90048 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.

75/100

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

Individually scored

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.

DR. KARLA ALBINA PINEDA D.C.

Chiropractor

6221 WILSHIRE BLVD, SUITE 518
LOS ANGELES, CA 90048

Los Angeles County (323) 549-0070

K C SALKINDER MD, INC

Otolaryngology (Plastic Surgery within the Head & Neck)

6221 WILSHIRE BLVD, SUITE 318
LOS ANGELES, CA 90048

Los Angeles County (323) 933-8477

GOLD WELLNESS INC

Physical Therapist

6221 WILSHIRE BLVD, #616
LOS ANGELES, CA 90048

Los Angeles County (323) 939-7050

PARVIZ D DANIELS M.D., F.A.C.S

Surgery

6221 WILSHIRE BLVD, SUITE 205
LOS ANGELES, CA 90048

Los Angeles County (323) 933-7571

MAYYA KRAVCHENKO DC

Chiropractor

6221 WILSHIRE BLVD, 604
LOS ANGELES, CA 90048

Los Angeles County (323) 933-2444

MR. EDMOND DAVID FEDER L.AC., Q.M.E.

Acupuncturist

6221 WILSHIRE BLVD, SUITE 604
LOS ANGELES, CA 90048

Los Angeles County (323) 933-2444

DR. DALIA NOSRATI D.D.S.

Dentist (General Practice)

6221 WILSHIRE BLVD, 307
LOS ANGELES, CA 90048

Los Angeles County (323) 931-9161

DR. KONSTANTIN SALKINDER MD

Otolaryngology (Plastic Surgery within the Head & Neck)

6221 WILSHIRE BLVD, 318
LOS ANGELES, CA 90048

Los Angeles County (323) 933-8477

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 Leonid Kleynberg's NPI number?

The NPI number for Leonid Kleynberg is 1891750212. It was assigned to this individual provider in the NPPES registry on April 19, 2006.

Where is Leonid Kleynberg located?

Leonid Kleynberg practices at 6221 Wilshire Blvd Suite 504, Los Angeles, CA 90048. The listed phone number is (323) 965-9995.

What is Leonid Kleynberg's specialty?

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

Is Leonid Kleynberg enrolled in Medicare?

Yes. Leonid Kleynberg 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 Leonid Kleynberg was last updated on November 17, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.