Mr Marcus Lonnell Davis, MD - Medicare Emergency Medicine in Washington, DC

Mr Marcus Lonnell Davis, MD is a medicare enrolled "Emergency Medicine" physician in Washington, District Of Columbia. He went to Columbia University College Of Physicians And Surgeons and graduated in 2014 and has 10 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice George Washington University Medical Faculty Associates, Mid Atlantic Medicine Llc and his current practice location is 1101 15th St Nw, Washington, District Of Columbia. You can reach out to his office (for appointments etc.) via phone at (202) 798-0100.

Mr Marcus Lonnell Davis is licensed to practice in District Of Columbia (license number MD047474) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1962813840.

Contact Information

Mr Marcus Lonnell Davis, MD
1101 15th St Nw,
Washington, DC 20005-5002
(202) 798-0100
(202) 379-3570

Map and Direction




Physician's Profile

Full NameMr Marcus Lonnell Davis
GenderMale
SpecialityEmergency Medicine
Experience10 Years
Location1101 15th St Nw, Washington, District Of Columbia
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mr Marcus Lonnell Davis attended and graduated from Columbia University College Of Physicians And Surgeons in 2014
  NPI Data:
  • NPI Number: 1962813840
  • Provider Enumeration Date: 05/14/2014
  • Last Update Date: 11/28/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 0547489908
  • Enrollment ID: I20190919001512

Medical Identifiers

Medical identifiers for Mr Marcus Lonnell Davis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1962813840NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine MD047474 (District Of Columbia)Secondary
207P00000XEmergency Medicine MD047474 (District Of Columbia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
United Medical CenterWashington, DCHospital
George Washington Univ HospitalWashington, DCHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
George Washington University Medical Faculty Associates4082528898651
Mid Atlantic Medicine Llc620420286410

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Mr Marcus Lonnell Davis allows following entities to bill medicare on his behalf.
Entity NameMedical Faculty Associates, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417990581
PECOS PAC ID: 4082528898
Enrollment ID: O20031117000341
Entity NameMid Atlantic Medicine Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1508459199
PECOS PAC ID: 6204202864
Enrollment ID: O20221021002558

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Mr Marcus Lonnell Davis is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Mr Marcus Lonnell Davis, MD
2120 L St Nw Ste 450,
Washington, DC 20037-1541

Ph: (202) 215-3060
Mr Marcus Lonnell Davis, MD
1101 15th St Nw,
Washington, DC 20005-5002

Ph: (202) 798-0100

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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