NPPES file of Aug 9, 2026

Lawrence Kleinberg, M.D.

Radiation Oncology Physician · Baltimore, MD

Lawrence Kleinberg, M.D. is a radiation oncology physician with a practice address in Baltimore, Maryland, and NPI 1952342214, issued on Jun 9, 2006. Check the license (Maryland D44461, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952342214
Name
Lawrence Kleinberg
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
D44461 MD
Self-reported in NPPES; status is on the state search
Practice location
600 N Wolfe St, Baltimore, MD 21287
Phone
(410) 955-8964
Enumerated
Jun 9, 2006
Record last updated
Aug 25, 2022
Medicaid ID
595611100 MD
Medicare enrollment
Enrolled (PECOS I20191211000614); may accept Medicare assignment
Medical or professional school
Yale University School Of Medicine, 1989
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 600 N Wolfe St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Abdulrahman Abodarahim, MBBCHOphthalmology Physician1770182560
  2. Aida Abou-ZamzamStudent in an Organized Health Care Education/Training Program1891456034
  3. Mya AbousyStudent in an Organized Health Care Education/Training Program1700422169
  4. Christopher Abularrage, MDVascular Surgery Physician1063675908
  5. Sahaja Acharya, M.D.Radiation Oncology Physician1639436603
  6. Stephen Achuff, M.D.Cardiovascular Disease Physician1326001033

Verify Lawrence Kleinberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D44461
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

71% fewer Medicare Part D claims than the average radiation oncology physician in 2024

39 Medicare Part D claims for 20 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.

  1. Lawrence Kleinberg39
  2. Specialty average134

Most prescribed

  1. Temazepam13 claims
  2. Dexamethasone12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $15,767.41

19 payments; by number, the most common kind was food and beverage; the largest payer was Servier Pharmaceuticals LLC. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lawrence Kleinberg$15,767
  2. Specialty average$1,898

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Johns Hopkins UniversityWashington, DC
  2. Johns Hopkins UniversityBaltimore, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Lawrence Kleinberg among 124 radiation oncology physician records in Maryland

Lawrence Kleinberg, M.D. is one of 124 radiation oncology physician records with a practice address in Maryland. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 59% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1989 · median 2006 among the 89 with a school on file
  • Record last updated2022 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Maryland

There are 124 radiation oncology physician records in Maryland.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Sahaja Acharya, M.D.Baltimore, MD 212871639436603
  2. Fariba Asrari, M.D.Baltimore, MD 212871073578837
  3. Theodore Deweese, M.D.Baltimore, MD 212871528003373
  4. Michael Goldstein, MD PHDBaltimore, MD 212871306231923
  5. Chengcheng GuiBaltimore, MD 212871740725902
  6. Sarah Hazell, M.D.Baltimore, MD 212871619364734
  7. Matthew LadraBaltimore, MD 212871164674214
  8. Anna Lavigne, MDBaltimore, MD 212871720443013

Common questions

What is Lawrence Kleinberg, M.D.'s NPI number?

Lawrence Kleinberg, M.D.'s National Provider Identifier (NPI) is 1952342214, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lawrence Kleinberg, M.D. located?

The NPPES record lists a practice address at 600 N Wolfe St, Baltimore, MD, 21287. Phone: (410) 955-8964. Providers update this record themselves, so call before visiting.

How can I verify Lawrence Kleinberg, M.D.'s license?

NPPES lists Maryland license number D44461, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Lawrence Kleinberg, M.D. prescribe under Medicare Part D?

In 2024, Lawrence Kleinberg, M.D. had 39 Medicare Part D claims for 20 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is Lawrence Kleinberg, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.