Dr. Lawrence Kleinberg, MD

  • Baltimore, MD
  • Radiation oncologist
NPI1952342214PAC ID0547356115
Medicare services, 2024
2,444
Medicare patients, 2024
305
Part D claims, 2024
39
Publications
161
Clinical trials
10
Practice address
600 N Wolfe St, Baltimore, MD 21287
Practice phone
Call (855) 662-3017
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Johns Hopkins Hospital Nelson/Harvey Building

Baltimore, Maryland

See all 7 affiliations

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Dr. Lawrence Kleinberg is a radiation oncologist in Baltimore, Maryland

Dr. Kleinberg practices at Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland.

Dr. Kleinberg's NPI, 1952342214, was assigned on June 9, 2006. Dr. Kleinberg graduated from Yale School of Medicine in 1989. Dr. Kleinberg holds Maryland license D44461.

NPI and contact details
Medicare PAC ID
0547356115
NPI enumeration date
June 9, 2006
NPI status
Active
Offers telehealth
Yes
Practice phone
(855) 662-3017
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
63
Medical school graduation
1989

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

Dr. Lawrence Kleinberg practices at Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland

Dr. Kleinberg's primary practice is Johns Hopkins Hospital Nelson/Harvey Building, at 600 N Wolfe St, Baltimore, MD 21287 in Baltimore City. The practice phone is (855) 662-3017.

  • Johns Hopkins Hospital Nelson/Harvey Building
    600 N Wolfe St, Baltimore, MD 21287 · Baltimore CityPhone(855) 662-3017

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

Dr. Lawrence Kleinberg is affiliated with 4 sites of care and 3 medical groups

Dr. Kleinberg's primary practice is Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland. Dr. Kleinberg is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins University. Dmand AI also links Dr. Kleinberg to 2 more hospitals and 2 medical groups, each named with a free account.

See all 7 affiliations for Dr. Kleinberg

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

Dmand AI tracks the EHR system at Dr. Lawrence Kleinberg's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kleinberg practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Johns Hopkins Hospital Nelson/Harvey BuildingAvailable with a free account
+3 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Lawrence Kleinberg is one of 100 radiation oncologists in Maryland

Radiation oncology is Dr. Kleinberg's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Kleinberg is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Kleinberg's licenses on file in 5 states: Maryland, District of Columbia, Virginia, North Carolina and New York.

Specialties and state licenses

  • Radiation oncology, MarylandPrimaryLicense D44461 · 1993 to 2026 · taxonomy 2085R0001X
  • District of Columbia license2019 to 2027
  • Virginia license2024 to 2026
  • North Carolina license2021 to 2022
  • New York license1990 to 1994

Clinical focus

Dmand AI lists bone cancer radiation, brain cancer radiation and brain tumor radiation among the conditions Dr. Kleinberg treats.

Radiation oncologists near Dr. Kleinberg

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. Lawrence Kleinberg billed Medicare for 2,444 services in 2024

CMS data shows 2,444 Medicare services from Dr. Kleinberg across 18 procedure codes in 2024, for 305 Medicare patients. Medicare paid $269,105 for them.

Medicare services, 20242,444
Medicare patients305
Paid by Medicare$269,105
Procedure codes18

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

  • 2023
  • 2024
Imaging
2023: 2,4092024: 2,03615%
Other services
2023: 4642024: 29936%
Office and hospital visits
2023: 1572024: 10931%

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

  • In an office93538%
  • In a facility1,50962%

Dr. Kleinberg compared with the Maryland median for radiation oncologists, 2024

  • Dr. Kleinberg
  • Maryland median
Medicare services
2,444vs 2,07618% above
Medicare patients
305vs 24027% above
Part D claims
25vs 25Close to median

Medians across 93 radiation oncologists in Maryland with Dmand AI profiles that report each measure.

Dr. Kleinberg'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. Kleinberg

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

Dr. Lawrence Kleinberg treated 305 Medicare patients in 2024, average age 72

CMS counts 305 Medicare patients who saw Dr. Kleinberg in 2024. The largest group is 65 to 74, with 174 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.62, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Kleinberg's median patient age at 72, with 48% women.

Medicare patients, 2024305
Average age72
Average risk score1.62
Also on Medicaid13%

Dr. Kleinberg's Medicare patients by age, 2024

Dr. Kleinberg's Medicare patients by sex, 2024

  • Women12039%
  • Men18561%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Cancer52%
  4. Arthritis43%
  5. Diabetes29%
  6. Ischemic heart disease29%
  7. Anxiety27%
  8. Mood disorders26%

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

Dr. Kleinberg's patients across all payers

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

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women48%
  • Men51%

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

Dr. Lawrence Kleinberg wrote 39 Medicare Part D claims in 2024

In 2024, Dr. Kleinberg wrote 39 Medicare Part D claims for 20 patients. 92% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $326 in total drug cost. In 2023, CMS named 12 claims across 1 drug.

Part D claims, 202439
Drugs named by CMS2
Total drug cost$326
Part D patients20

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

  • Generic36 claims92%
  • Brand-name and other3 claims8%

Dr. Kleinberg's most prescribed drugs by claims, 2024

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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 122024: 25108%

Drugs named by CMS: 2 in 2024, 1 in 2023.

See all prescribing by Dr. Kleinberg

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. Lawrence Kleinberg scored 83 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Kleinberg for performance year 2024, reported as part of a group. CMS lists Dr. Kleinberg as offering telehealth.

Offers telehealth
Yes

Dr. Kleinberg's MIPS scores, performance year 2024

  • 83of 100Final score
  • 73.9of 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. Lawrence Kleinberg has 161 publications on record

Dmand AI links 161 papers to Dr. Kleinberg, published from 2006 to 2025. 2023 was the busiest year, with 18. The most frequent topics are Brain Neoplasms, Radiosurgery and Esophageal Neoplasms. Dr. Kleinberg has published most often in Int J Radiat Oncol Biol Phys. Dr. Kleinberg's most frequent co-authors are Kristin Janson Redmond, MD, Michael Lim, MD and Chetan Bettegowda, MD, PhD.

Papers161
Years published2006 to 2025

Dr. Kleinberg's papers by year, 2016 to 2025

Topics Dr. Kleinberg writes about most

  • Brain Neoplasms
  • Radiosurgery
  • Esophageal Neoplasms
  • Glioblastoma
  • Disease Progression
  • Cranial Irradiation
  • Magnetic Resonance Imaging
  • Adenocarcinoma

Dr. Kleinberg's most frequent co-authors

Recent publications by Dr. Kleinberg

See all 161 publications and co-authors

See who Dr. Kleinberg researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kleinberg 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. Lawrence Kleinberg has worked on 10 clinical trials

Dmand AI links Dr. Kleinberg to 10 clinical trials, 5 of them phase 2 studies. 3 are still active or recruiting. Conditions studied include Glioblastoma, Astrocytoma and Gliosarcoma. Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins sponsors the most, 8.

Clinical trials with Dr. Kleinberg by phase

  1. 1Early phase 1: 1 trial
  2. 1Phase 1: 1 trial
  3. 5Phase 2: 5 trials
  4. NonePhase 3: no trials
  5. NonePhase 4: no trials

Conditions in Dr. Kleinberg's trials

  • Glioblastoma
  • Astrocytoma
  • Gliosarcoma
  • Small Cell Lung Carcinoma
  • Carcinoma, Bronchogenic

Investigators on the most trials with Dr. Kleinberg

Recent clinical trials with Dr. Kleinberg

See all 10 clinical trials and co-investigators

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Lawrence Kleinberg received $51,967 in industry payments from 2016 to 2025

CMS Open Payments shows 94 general payments to Dr. Kleinberg from 16 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 45% of the total. Novocure Inc. paid the most, $24,360. It also lists 2 research payments totaling $19,849 in 2017.

General payments to Dr. Kleinberg by program year, 2016 to 2025

General payments to Dr. Kleinberg by kind, 2016 to 2025

$52Kin total
  • Consulting fees$23,60345%
  • Honoraria$15,39130%
  • Travel and lodging$6,39112%
  • Food and beverage$4,6839%
  • Other$1,9004%

Companies that paid Dr. Kleinberg the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Kleinberg

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

Dr. Lawrence Kleinberg has 5 awards and honors on record

Dmand AI lists 5 awards for Dr. Kleinberg, most recently America's Top Doctors in 2014.

Awards and honors for Dr. Kleinberg

  1. 2014
    • America's Top Doctors
  2. 2013
    • America's Top Doctors for Cancer
    • CMS Stage 1 EHR
  3. 2012
    • Top Doctors:Baltimore Area
    • Top Doctors:Washington-Baltimore

Source: Dmand AI Professional Profile Data

Dr. Lawrence Kleinberg graduated from Yale School of Medicine

Dr. Kleinberg graduated from Yale School of Medicine in 1989. Dr. Kleinberg is a member of ASCO.

  1. Medical schoolYale School of Medicine
  2. Board certified in radiation oncologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. Lawrence Kleinberg accepts plans from 9 insurance carriers

Dr. Kleinberg is in network with 9 carriers, including Aetna, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Excellus BlueCross BlueShield
  • Blue Cross Blue Shield of Michigan
  • CareFirst BlueCross BlueShield
  • Elevance
  • United Healthcare
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +1 more carriersWith a free account

Plan types Dr. Kleinberg accepts, by number of carriers

  1. Medicare6
  2. HMO5
  3. POS5
  4. PPO5
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Lawrence Kleinberg'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 DataDmand AI Org Hierarchy 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
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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. Lawrence Kleinberg

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. Lawrence Kleinberg's NPI number?

Dr. Lawrence Kleinberg's NPI number is 1952342214. It was assigned on June 9, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Lawrence Kleinberg?

Dr. Lawrence Kleinberg is a radiation oncologist in Baltimore, Maryland. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. Lawrence Kleinberg practice?

Dr. Kleinberg practices at 600 N Wolfe St, Baltimore, MD 21287. Dr. Kleinberg's primary practice is Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland. Dmand AI also links Dr. Kleinberg to 2 hospitals and 2 medical groups.

What is Dr. Lawrence Kleinberg's office phone number?

The practice phone on file for Dr. Kleinberg is (855) 662-3017.

What is Dr. Lawrence Kleinberg's medical license number?

Dr. Kleinberg holds Maryland license D44461, one of the licenses on file in 5 states.

Which states has Dr. Lawrence Kleinberg been licensed in?

Dmand AI has state licenses on file for Dr. Kleinberg in Maryland (1993 to 2026), District of Columbia (2019 to 2027), Virginia (2024 to 2026), North Carolina (2021 to 2022) and New York (1990 to 1994).

Which hospitals is Dr. Lawrence Kleinberg affiliated with?

Dr. Kleinberg is affiliated with The Johns Hopkins Hospital. Dmand AI links Dr. Kleinberg to 2 more hospitals.

What medical group is Dr. Lawrence Kleinberg part of?

Dr. Kleinberg is linked to Johns Hopkins University. Dmand AI links Dr. Kleinberg to 2 more medical groups.

Does Dr. Lawrence Kleinberg accept Medicare?

Yes. CMS data shows Dr. Kleinberg billed Medicare for 2,444 services in 2024.

Does Dr. Lawrence Kleinberg offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Kleinberg as offering telehealth services.

Show 11 more questionsShow fewer questions

What is Dr. Lawrence Kleinberg's MIPS score?

Dr. Kleinberg's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.

How many Medicare patients does Dr. Lawrence Kleinberg see?

CMS counts 305 Medicare patients who saw Dr. Kleinberg in 2024, with an average age of 72.

Is Dr. Lawrence Kleinberg board certified?

Yes. Dr. Kleinberg is board certified in radiation oncology by the American Board of Radiology.

What services does Dr. Lawrence Kleinberg bill to Medicare?

In 2024, Dr. Kleinberg's most billed Medicare services were radiation oncology (77014), radiation oncology (77300) and medicare service (G6015).

Where did Dr. Lawrence Kleinberg go to medical school?

Dr. Kleinberg graduated from Yale School of Medicine in 1989.

What drugs does Dr. Lawrence Kleinberg prescribe most?

In 2024 Medicare Part D data, Dr. Kleinberg's most prescribed drugs by claims were Temazepam and Dexamethasone.

Has Dr. Lawrence Kleinberg received payments from drug or device companies?

CMS Open Payments shows $51,967 in general payments to Dr. Kleinberg from 16 companies from 2016 to 2025. The largest total came from Novocure Inc.

How long has Dr. Lawrence Kleinberg been practicing?

Dr. Kleinberg graduated from medical school in 1989, 37 years ago.

Does Dr. Lawrence Kleinberg do research?

Dmand AI links 161 publications to Dr. Kleinberg, published from 2006 to 2025. Dr. Kleinberg has worked on 10 clinical trials.

Who does Dr. Lawrence Kleinberg publish with?

Dr. Kleinberg's most frequent co-authors are Kristin Janson Redmond, MD (66 shared papers), Michael Lim, MD (40 shared papers) and Chetan Bettegowda, MD, PhD (20 shared papers).

What insurance does Dr. Lawrence Kleinberg accept?

Dr. Kleinberg is in network with 9 carriers, including Aetna, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.

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