NPPES file of Aug 9, 2026

Marcus Lonnell Davis, MD

Emergency Medicine Physician · Washington, DC

Marcus Lonnell Davis, MD is an emergency medicine physician with a practice address in Washington, District of Columbia, and NPI 1962813840, issued on May 14, 2014. Check the license (District of Columbia MD047474, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1962813840
Name
Marcus Lonnell Davis
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
MD047474 DC
Self-reported in NPPES; status is on the state search
Practice location
1101 15TH St NW, Washington, DC 20005
Phone
(202) 798-0100
Enumerated
May 14, 2014
Record last updated
Nov 28, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(202) 379-3570
Medicare enrollment
Enrolled (PECOS I20190919001512); accepts Medicare assignment
Medical or professional school
Columbia University College Of Physicians And Surgeons, 2014
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.
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Also registered at 1101 15TH St NW

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

  1. Joston Benton, PT, DPT, MSPhysical Therapist1114678232
  2. Garrett KneeseFamily Medicine Physician1912643255
  3. Kimberly Mohabir, MDFamily Medicine Physician1215465497
  4. Aima Payton, FNPFamily Nurse Practitioner1518275304
  5. Elizabeth Prevou, PA-CPhysician Assistant1205201993
  6. Ariel Rad, M.D., PH.D.Specialist1538215843

Verify Marcus Lonnell Davis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
    Search for license MD047474
    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 District of Columbia 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.

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6.0 times the Medicare Part D claims of the average emergency medicine physician in 2024

1,356 Medicare Part D claims for 177 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 16 claims were for opioids.

  1. Marcus Davis1,356
  2. Specialty average226

Most prescribed

  1. Atorvastatin Calcium119 claims
  2. Amlodipine Besylate94 claims
  3. Losartan Potassium46 claims
  4. Chlorthalidone45 claims
  5. Fluticasone Propionate42 claims
  6. Metformin Hcl Er42 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.

Industry payments in 2024: $482.23

19 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marcus Davis$482.23
  2. Specialty average$953.79

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. Medical Faculty Associates, IncWashington, DC
  2. Mid Atlantic Medicine LLCWashington, DC

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

360 emergency medicine physician records list a practice address in Washington

They are 360 of the 45,857 NPPES records with a practice address in Washington, and 360 emergency medicine physician records in District of Columbia.

Other emergency medicine physician records in District of Columbia

  1. Lauren Abbott, M.D.Washington, DC1356576383
  2. Judith Abboud, M.D.Washington, DC1801158910
  3. Assya AbdallahWashington, DC1336569987
  4. Jennifer Abele, MDWashington, DC1073502779
  5. Awet AbrahaWashington, DC1659699791
  6. Jameel Abualenain, MDWashington, DC1740449388
  7. Fahad Abuguyan, M.B.B.S., FRCPCWashington, DC1821547225
  8. Oluwaseyi Adekunle, MDWashington, DC1194075051
  9. Samuel Adelman, M.D.Washington, DC1093178592
  10. Shantanu Agrawal, MDWashington, DC1376604355

Common questions

What is Marcus Lonnell Davis, MD's NPI number?

Marcus Lonnell Davis, MD's National Provider Identifier (NPI) is 1962813840, issued on May 14, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Marcus Lonnell Davis, MD located?

The NPPES record lists a practice address at 1101 15TH St NW, Washington, DC, 20005. Phone: (202) 798-0100. Providers update this record themselves, so call before visiting.

How can I verify Marcus Lonnell Davis, MD's license?

NPPES lists District of Columbia license number MD047474, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marcus Lonnell Davis, MD prescribe under Medicare Part D?

In 2024, Marcus Lonnell Davis, MD had 1,356 Medicare Part D claims for 177 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

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.