Michael Stephen Londner, MD
Emergency Medicine Physician · Leesburg, VA
Michael Stephen Londner, MD is an emergency medicine physician with a practice address in Leesburg, Virginia, and NPI 1346298700, issued on May 5, 2006. Check the license (Virginia 0101237389, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Michael Stephen Londner
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 0101237389 VA
Self-reported in NPPES; status is on the state search - Practice location
- 44045 Riverside Parkway, Leesburg, VA 20176
- Phone
- (703) 858-6040
- Enumerated
- May 5, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (610) 617-6280
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,715 in Virginia → Look up another NPI →
Also registered at 44045 Riverside Parkway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kavitha Cherukuri, MDEmergency Medicine Physician1457319949
- Robert Felter, MDPediatrics Physician1518915917
- Corey George, DNP, CRNACertified Registered Nurse Anesthetist1942663505
- Jay Kugler, DOEmergency Medicine Physician1669420279
- Cindy Lee, MDCritical Care Medicine (Internal Medicine) Physician1205970647
- John Morgan, MDEmergency Medicine Physician1396793980
Verify Michael Stephen Londner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101237389Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average emergency medicine physician in 2024
572 Medicare Part D claims for 349 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Prednisone148 claims
- Amoxicillin-Clavulanate Potass62 claims
- Cefuroxime41 claims
- Doxycycline Hyclate41 claims
- Azithromycin34 claims
- Nitrofurantoin Mono-Macro22 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 MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Michael Stephen Londner among 1,715 emergency medicine physician records in Virginia
Michael Stephen Londner, MD is one of 1,715 emergency medicine physician records with a practice address in Virginia. 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 5% of them.
- NPI issued2006 · 5% of these records are older, 59% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2026 · 55% 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 Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 emergency medicine physician records list a practice address in Leesburg
They are 22 of the 1,759 NPPES records with a practice address in Leesburg, and 1,715 emergency medicine physician records in Virginia.
All 1,715 in Virginia → Every provider in Leesburg → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Dahlia Charles, M.D.,Leesburg, VA 201761720170525
- Kavitha Cherukuri, MDLeesburg, VA 201761457319949
- Robert Darling, M.D.Leesburtg, VA 201761134173511
- Nicholas Hogan, MDLeesburg, VA 201761558466755
- Jay Kugler, DOLeesburg, VA 201761669420279
- Zachary Malachias, MDLeesburg, VA 201761417993718
- John Morgan, MDLeesburg, VA 201761396793980
- Sean O'Mara, MDLeesburg, VA 201761841242963
Common questions
What is Michael Stephen Londner, MD's NPI number?
Michael Stephen Londner, MD's National Provider Identifier (NPI) is 1346298700, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Stephen Londner, MD located?
The NPPES record lists a practice address at 44045 Riverside Parkway, Leesburg, VA, 20176. Phone: (703) 858-6040. Providers update this record themselves, so call before visiting.
How can I verify Michael Stephen Londner, MD's license?
NPPES lists Virginia license number 0101237389, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael Stephen Londner, MD prescribe under Medicare Part D?
In 2024, Michael Stephen Londner, MD had 572 Medicare Part D claims for 349 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Michael Stephen Londner, MD's MIPS final score?
The 2023 MIPS final score is 94.1 of 100. 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.