Alexander Gilbert, MD - Medicare Internal Medicine in Washington, DC

Alexander Gilbert, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Washington, District Of Columbia. He went to New York University School Of Medicine and graduated in 1998 and has 26 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Mgmc Llc and his current practice location is 3800 Reservoir Rd Nw, Washington, District Of Columbia. You can reach out to his office (for appointments etc.) via phone at (202) 444-3700.

Alexander Gilbert is licensed to practice in District Of Columbia (license number MD041145) 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 1457346454.

Contact Information

Alexander Gilbert, MD
3800 Reservoir Rd Nw,
Washington, DC 20007-2113
(202) 444-3700
Not Available

Map and Direction




Physician's Profile

Full NameAlexander Gilbert
GenderMale
SpecialityInternal Medicine
Experience26 Years
Location3800 Reservoir Rd 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:
  • Alexander Gilbert attended and graduated from New York University School Of Medicine in 1998
  NPI Data:
  • NPI Number: 1457346454
  • Provider Enumeration Date: 09/15/2005
  • Last Update Date: 06/29/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7911809272
  • Enrollment ID: I20130513000507

Medical Identifiers

Medical identifiers for Alexander Gilbert such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1457346454NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology MD041145 (District Of Columbia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Medstar Georgetown University HospitalWashington, DCHospital
Medstar Washington Hospital CenterWashington, DCHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mgmc Llc9537073119412

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. Alexander Gilbert allows following entities to bill medicare on his behalf.
Entity NameMgmc Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891797148
PECOS PAC ID: 9537073119
Enrollment ID: O20031220000056

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. Alexander Gilbert 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
Alexander Gilbert, MD
3800 Reservoir Rd Nw,
Washington, DC 20007-2113

Ph: (202) 444-3700
Alexander Gilbert, MD
3800 Reservoir Rd Nw,
Washington, DC 20007-2113

Ph: (202) 444-3700

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.