Dr Larissa Severine May, MD - Medicare Emergency Medicine in Washington, DC

Dr Larissa Severine May, MD is a medicare enrolled "Emergency Medicine" physician in Washington, District Of Columbia. She went to George Washington University School Of Medicine and graduated in 2002 and has 22 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Regents Of The Univ Of Ca and her current practice location is 900 23rd St Nw, Washington, District Of Columbia. You can reach out to her office (for appointments etc.) via phone at (202) 741-2911.

Dr Larissa Severine May is licensed to practice in District Of Columbia (license number MD035802) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1083624282.

Contact Information

Dr Larissa Severine May, MD
900 23rd St Nw,
Washington, DC 20037-2342
(202) 741-2911
Not Available

Map and Direction




Physician's Profile

Full NameDr Larissa Severine May
GenderFemale
SpecialityEmergency Medicine
Experience22 Years
Location900 23rd St Nw, Washington, District Of Columbia
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Larissa Severine May attended and graduated from George Washington University School Of Medicine in 2002
  NPI Data:
  • NPI Number: 1083624282
  • Provider Enumeration Date: 08/09/2006
  • Last Update Date: 01/09/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 0345342861
  • Enrollment ID: I20150720002365

Medical Identifiers

Medical identifiers for Dr Larissa Severine May such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1083624282NPI-NPPES
037793300MedicaidDC

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine MD035802 (District Of Columbia)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regents Of The Univ Of Ca33754566191320

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. Dr Larissa Severine May allows following entities to bill medicare on her behalf.
Entity NameRegents Of The Univ Of Ca
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013906973
PECOS PAC ID: 3375456619
Enrollment ID: O20031111000892
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952998973
PECOS PAC ID: 8022922475
Enrollment ID: O20031118001149

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. Dr Larissa Severine May 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
Dr Larissa Severine May, MD
900 23rd St Nw,
Washington, DC 20037-2342

Ph: (202) 741-2911
Dr Larissa Severine May, MD
900 23rd St Nw,
Washington, DC 20037-2342

Ph: (202) 741-2911

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.