Dr. Leslie E. Botnick, MD

  • Duarte, CA
  • Radiation oncologist
NPI1275530917PAC ID2860306214
Medicare services, 2024
1,135
Medicare patients, 2024
109
Part D claims, 2024
22
Publications
23
MIPS score, 2024
93
Practice address
1500 Duarte Rd, Duarte, CA 91010
Practice phone
Call (626) 256-4673
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

City of Hope Comprehensive Cancer Center - Duarte

Duarte, California

See all 17 affiliations

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Dr. Leslie E. Botnick is a radiation oncologist in Duarte, California

Dr. Botnick practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.

Dr. Botnick's NPI, 1275530917, was assigned on July 7, 2005. Dr. Botnick graduated from New York Medical College in 1972. Dr. Botnick holds California license G37645.

NPI and contact details
Medicare PAC ID
2860306214
NPI enumeration date
July 7, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(626) 256-4673
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
80
Medical school graduation
1972

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Leslie E. Botnick practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California

Dr. Botnick's primary practice is City of Hope Comprehensive Cancer Center - Duarte, at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (626) 256-4673.

  • City of Hope Comprehensive Cancer Center - Duarte
    1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(626) 256-4673

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Leslie E. Botnick is affiliated with 9 sites of care and 8 medical groups

Dr. Botnick's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. The medical group on file is City of Hope. Dmand AI also links Dr. Botnick to 7 more medical groups, 6 group practices and clinics and 2 physician offices, each named with a free account.

See all 17 affiliations for Dr. Botnick

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Leslie E. Botnick's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Botnick practices, 8 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
City of Hope Comprehensive Cancer Center - DuarteAvailable with a free account
+8 more sites and 7 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Leslie E. Botnick is one of 685 radiation oncologists in California

Radiation oncology is Dr. Botnick's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Botnick is board certified in therapeutic radiology by the American Board of Radiology. Dmand AI has Dr. Botnick's licenses on file in 8 states: California, New York, Arizona, Massachusetts, Ohio, Illinois, Colorado and New Mexico.

Specialties and state licenses

  • Radiation oncology, CaliforniaPrimaryLicense G37645 · 1978 to 2026 · taxonomy 2085R0001X
  • New York license2003 to 2021
  • Arizona license2010 to 2019
  • Massachusetts license1973 to 2019
  • Ohio license2015 to 2019
  • Illinois license2010 to 2017
  • Colorado license2001 to 2013
  • New Mexico license2001 to 2008

Clinical focus

Dmand AI lists breast cancer radiation, lung cancer radiation, lymphoma radiation and prostate cancer radiation among the conditions Dr. Botnick treats.

Radiation oncologists near Dr. Botnick

Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Leslie E. Botnick billed Medicare for 1,135 services in 2024

CMS data shows 1,135 Medicare services from Dr. Botnick across 11 procedure codes in 2024, for 109 Medicare patients. Medicare paid $232,949 for them.

Medicare services, 20241,135
Medicare patients109
Paid by Medicare$232,949
Procedure codes11

Dr. Botnick's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 7632024: 7176%
Other services
2023: 3672024: 3612%
Office and hospital visits
2023: 482024: 5719%

Where Dr. Botnick's Medicare services took place, 2024

  • In an office1,12499%
  • In a facility111%

Dr. Botnick compared with the California median for radiation oncologists, 2024

  • Dr. Botnick
  • California median
Medicare services
1,135vs 1,44421% below
Medicare patients
109vs 16434% below
Part D claims
17vs 3247% below

Medians across 633 radiation oncologists in California with Dmand AI profiles that report each measure.

Dr. Botnick's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Botnick

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Leslie E. Botnick treated 109 Medicare patients in 2024, average age 74

CMS counts 109 Medicare patients who saw Dr. Botnick in 2024. The largest group is 65 to 74, with 53 patients. 75% of them have cancer, and 75% have high cholesterol. 45% are also on Medicaid. Their average risk score is 1.42, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Botnick's median patient age at 68, with 59% women.

Medicare patients, 2024109
Average age74
Average risk score1.42
Also on Medicaid45%

Dr. Botnick's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Botnick's Medicare patients by sex, 2024

  • Women6358%
  • Men4642%

Chronic conditions among Dr. Botnick's Medicare patients, 2024

  1. Cancer75%
  2. High cholesterol75%
  3. High blood pressure74%
  4. Arthritis55%
  5. Diabetes33%
  6. Anxiety27%
  7. Mood disorders27%
  8. Depression26%

Share of Medicare patients with each condition. A patient can have several.

Dr. Botnick's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women59%
  • Men40%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Leslie E. Botnick wrote 22 Medicare Part D claims in 2024

In 2024, Dr. Botnick wrote 22 Medicare Part D claims for 12 patients. 95% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $378 in total drug cost. In 2019, CMS named 21 claims across 1 drug.

Part D claims, 202422
Drugs named by CMS1
Total drug cost$378
Part D patients12

Dr. Botnick's Part D claims by kind of drug, 2024

  • Generic21 claims95%
  • Brand-name and other1 claims5%

Dr. Botnick's most prescribed drugs by claims, 2020

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2019 to 2020

  • 2019
  • 2020
Claims for drugs CMS names
2019: 212020: 1719%

Drugs named by CMS: 1 in 2020, 1 in 2019.

See all prescribing by Dr. Botnick

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Leslie E. Botnick scored 93 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Botnick for performance year 2024, reported as part of a group. Dr. Botnick accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Botnick's MIPS scores, performance year 2024

  • 93of 100Final score
  • 78.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 70of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Leslie E. Botnick has 23 publications on record

Dmand AI links 23 papers to Dr. Botnick in 2016. The most frequent topics are Hematopoietic Stem Cells, Cell Division and Antineoplastic Agents. Dr. Botnick has published most often in Int J Radiat Oncol Biol Phys. Dr. Botnick's most frequent co-authors are Christopher M. Rose, MD, Robert Clinton Bast, MD and George Peter Canellos, MD.

Papers23

Topics Dr. Botnick writes about most

  • Hematopoietic Stem Cells
  • Cell Division
  • Antineoplastic Agents
  • Bone Marrow
  • Breast Neoplasms
  • Colony-Forming Units Assay
  • Hematopoiesis
  • Mice, Inbred C3H

Dr. Botnick's most frequent co-authors

Recent publications by Dr. Botnick

See all 23 publications and co-authors

See who Dr. Botnick researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Botnick works with, so you can find a warm path to the right radiation oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Leslie E. Botnick received $7,021 in industry payments from 2017 to 2025

CMS Open Payments shows 13 general payments to Dr. Botnick from 9 drug and device companies from 2017 to 2025. Debt forgiveness make up the largest share, 92% of the total. Olympus America Inc. paid the most, $6,466.

General payments to Dr. Botnick by program year, 2017 to 2025

General payments to Dr. Botnick by kind, 2017 to 2025

$7Kin total
  • Debt forgiveness$6,46692%
  • Food and beverage$5558%

Companies that paid Dr. Botnick the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Botnick

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Leslie E. Botnick graduated from New York Medical College

Dr. Botnick graduated from New York Medical College in 1972.

  1. Medical schoolNew York Medical College
  2. Board certified in therapeutic radiologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. Leslie E. Botnick accepts plans from 11 insurance carriers

Dr. Botnick is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • LA Care
  • Molina
  • Regence Health Plans
  • United Healthcare
  • +3 more carriersWith a free account

Plan types Dr. Botnick accepts, by number of carriers

  1. Medicare7
  2. HMO6
  3. PPO5
  4. POS3
  5. EPO2
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Leslie E. Botnick's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Leslie E. Botnick

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Leslie E. Botnick's NPI number?

Dr. Leslie E. Botnick's NPI number is 1275530917. It was assigned on July 7, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Leslie E. Botnick?

Dr. Leslie E. Botnick is a radiation oncologist in Duarte, California. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. Leslie E. Botnick practice?

Dr. Botnick practices at 1500 Duarte Rd, Duarte, CA 91010. Dr. Botnick's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Dr. Botnick to 7 medical groups, 6 group practices and clinics and 2 physician offices.

What is Dr. Leslie E. Botnick's office phone number?

The practice phone on file for Dr. Botnick is (626) 256-4673.

What is Dr. Leslie E. Botnick's medical license number?

Dr. Botnick holds California license G37645, one of the licenses on file in 8 states.

Which states has Dr. Leslie E. Botnick been licensed in?

Dmand AI has state licenses on file for Dr. Botnick in California (1978 to 2026), New York (2003 to 2021), Arizona (2010 to 2019), Massachusetts (1973 to 2019), Ohio (2015 to 2019), Illinois (2010 to 2017), Colorado (2001 to 2013) and New Mexico (2001 to 2008).

What medical group is Dr. Leslie E. Botnick part of?

Dr. Botnick is linked to City of Hope. Dmand AI links Dr. Botnick to 7 more medical groups.

Does Dr. Leslie E. Botnick accept Medicare?

Yes. CMS data shows Dr. Botnick billed Medicare for 1,135 services in 2024, and Dr. Botnick accepts Medicare assignment.

What is Dr. Leslie E. Botnick's MIPS score?

Dr. Botnick's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.

How many Medicare patients does Dr. Leslie E. Botnick see?

CMS counts 109 Medicare patients who saw Dr. Botnick in 2024, with an average age of 74.

Show 9 more questionsShow fewer questions

Is Dr. Leslie E. Botnick board certified?

Yes. Dr. Botnick is board certified in therapeutic radiology by the American Board of Radiology.

What services does Dr. Leslie E. Botnick bill to Medicare?

In 2024, Dr. Botnick's most billed Medicare services were radiation oncology (77014), medicare service (G6015) and radiation oncology (77427).

Where did Dr. Leslie E. Botnick go to medical school?

Dr. Botnick graduated from New York Medical College in 1972.

What drugs does Dr. Leslie E. Botnick prescribe most?

In 2020 Medicare Part D data, Dr. Botnick's most prescribed drugs by claims were Tamsulosin HCl.

Has Dr. Leslie E. Botnick received payments from drug or device companies?

CMS Open Payments shows $7,021 in general payments to Dr. Botnick from 9 companies from 2017 to 2025. The largest total came from Olympus America Inc.

How long has Dr. Leslie E. Botnick been practicing?

Dr. Botnick graduated from medical school in 1972, 54 years ago.

Does Dr. Leslie E. Botnick do research?

Dmand AI links 23 publications to Dr. Botnick.

Who does Dr. Leslie E. Botnick publish with?

Dr. Botnick's most frequent co-authors are Christopher M. Rose, MD (2 shared papers), Robert Clinton Bast, MD (1 shared paper) and George Peter Canellos, MD (1 shared paper).

What insurance does Dr. Leslie E. Botnick accept?

Dr. Botnick is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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