Maria Gema Decain, MD - Family Medicine in Washington, DC

Maria Gema Decain, MD is a Family Medicine physician based in Washington, District Of Columbia. Maria Gema Decain is licensed to practice in Puerto Rico (license number 25054) and her current practice location is 3800 Reservoir Rd Nw Fl Phc7, Washington, District Of Columbia. She can be reached at her office (for appointments etc.) via phone at (202) 256-7639.

NPI number for Maria Gema Decain is 1609511641 and her current mailing address is Medstar Georgetown University Hospital, 3800 Reservoir Rd Nw. Dept Of Neurology, Washington, District Of Columbia. She does not participate in medicare program and thus does not accept medicare assignments. Her NPI Number is 1609511641.

Contact Information

Maria Gema Decain, MD
3800 Reservoir Rd Nw Fl Phc7,
Washington, DC 20007-2113
(202) 256-7639
Not Available

Map and Direction




Physician's Profile

Full NameMaria Gema Decain
GenderFemale
SpecialityFamily Medicine
Location3800 Reservoir Rd Nw Fl Phc7, Washington, District Of Columbia
Accepts Medicare AssignmentsDoes not participate in Medicare Program. She may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1609511641
  • Provider Enumeration Date: 05/04/2022
  • Last Update Date: 07/20/2026

Medical Identifiers

Medical identifiers for Maria Gema Decain such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1609511641NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 25054 (Puerto Rico)Primary

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. Maria Gema Decain is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Maria Gema Decain, MD
Medstar Georgetown University Hospital, 3800 Reservoir Rd Nw. Dept Of Neurology,
Washington, DC 20007

Ph: (202) 444-1037
Maria Gema Decain, MD
3800 Reservoir Rd Nw Fl Phc7,
Washington, DC 20007-2113

Ph: (202) 256-7639

Reviews and Comments


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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.

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