NPPES file of Aug 9, 2026

Barton Walker Leonard, MD

Emergency Medicine Physician · Bethesda, MD

Barton Walker Leonard, MD is an emergency medicine physician with a practice address in Bethesda, Maryland, and NPI 1386680577, issued on Jun 22, 2006. Check the license (Maryland D0054776, 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
1386680577
Name
Barton Walker Leonard
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
D0054776 MD
Self-reported in NPPES; status is on the state search
Practice location
8600 Old Georgetown RD, Bethesda, MD 20814
Phone
(301) 896-3054
Enumerated
Jun 22, 2006
Record last updated
Jul 23, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicaid ID
912302400 MD
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 8600 Old Georgetown RD

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

  1. Daniel Abate, PHARMDCritical Care Pharmacist1639096654
  2. Sanjay Agarwal, MDHospitalist Physician1346200391
  3. May Alattar, MDEndocrinology, Diabetes & Metabolism Physician1154523371
  4. Alessandro Albano, MDAnesthesiology Physician1124604566
  5. Richard Alcorta, MDEmergency Medicine Physician1720023203
  6. Sara Alehashemi, MDInternal Medicine Physician1134409287

Verify Barton Walker Leonard in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0054776
    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

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42% fewer Medicare Part D claims than the average emergency medicine physician in 2024

132 Medicare Part D claims for 88 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Barton Leonard132
  2. Specialty average226

Most prescribed

  1. Cefuroxime20 claims
  2. Methylprednisolone17 claims
  3. Azithromycin14 claims
  4. Meclizine Hcl14 claims
  5. Albuterol Sulfate Hfa12 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 85.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

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

Barton Walker Leonard among 1,190 emergency medicine physician records in Maryland

Barton Walker Leonard, MD is one of 1,190 emergency medicine physician records with a practice address in Maryland. 77% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 59% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 48% of these records are
  • Record last updated2009 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Maryland

There are 1,190 emergency medicine physician records in Maryland.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Richard Alcorta, MDBethesda, MD 208141720023203
  2. Edward Berman, MDBethesda, MD 208141326084518
  3. Jeremy Brown, MDBethesda, MD 208141366426330
  4. Brendan Carmody, MDBethesda, MD 208141649213984
  5. Barbara Cornet, NPBethesda, MD 208141932144466
  6. Jeffrey Engel, D.O.Bethesda, MD 208141760466973
  7. Emily Gordon, MDBethesda, MD 208141548212095
  8. Paul O Brien, MDBethesda, MD 208141679519896

Common questions

What is Barton Walker Leonard, MD's NPI number?

Barton Walker Leonard, MD's National Provider Identifier (NPI) is 1386680577, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Barton Walker Leonard, MD located?

The NPPES record lists a practice address at 8600 Old Georgetown RD, Bethesda, MD, 20814. Phone: (301) 896-3054. Providers update this record themselves, so call before visiting.

How can I verify Barton Walker Leonard, MD's license?

NPPES lists Maryland license number D0054776, 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 Barton Walker Leonard, MD prescribe under Medicare Part D?

In 2024, Barton Walker Leonard, MD had 132 Medicare Part D claims for 88 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Barton Walker Leonard, MD's MIPS final score?

The 2023 MIPS final score is 85.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.