Hassan O Khalil, MD - Medicare Internal Medicine in Washington, DC

Hassan O Khalil, MD is a medicare enrolled "Internal Medicine" physician in Washington, District Of Columbia. His current practice location is 2150 Pennsylvania Ave Nw, Washington, District Of Columbia. You can reach out to his office (for appointments etc.) via phone at (202) 741-3000.

Hassan O Khalil is licensed to practice in Massachusetts (license number 284084) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1538678297.

Contact Information

Hassan O Khalil, MD
2150 Pennsylvania Ave Nw,
Washington, DC 20037-3201
(202) 741-3000
Not Available

Map and Direction




Physician's Profile

Full NameHassan O Khalil
GenderMale
SpecialityInternal Medicine
Location2150 Pennsylvania Ave Nw, Washington, District Of Columbia
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1538678297
  • Provider Enumeration Date: 09/26/2017
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 7719307057
  • Enrollment ID: I20201026002094

Medical Identifiers

Medical identifiers for Hassan O Khalil such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538678297NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 284084 (Massachusetts)Primary
207R00000XInternal Medicine MTL004484 (District Of Columbia)Secondary

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. Hassan O Khalil allows following entities to bill medicare on his behalf.
Entity NameHallmark Health Medical Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770563900
PECOS PAC ID: 4385638782
Enrollment ID: O20040409000006
Entity NameMelrosewakefield Healthcare, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841290467
PECOS PAC ID: 8224935838
Enrollment ID: O20040504000734
Entity NameBrigham & Womens Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033535497
PECOS PAC ID: 3870405988
Enrollment ID: O20150107001260

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. Hassan O Khalil 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
Hassan O Khalil, MD
75 Francis St,
Boston, MA 02115-6110

Ph: (202) 741-3000
Hassan O Khalil, MD
2150 Pennsylvania Ave Nw,
Washington, DC 20037-3201

Ph: (202) 741-3000

Reviews and Comments


Internal Medicine Doctors in Washington, DC

Dr. Adefolaju Oketokun, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1629 K Street Nw, Suite 300, Washington, DC 20006
Phone: 202-636-1360    Fax: 202-636-5137
Dr. Uzoamaka Theodora Nwaogwugwu, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2041 Georgia Avenue Nw, Washington, DC 20060
Phone: 202-865-7677    
Ms. Sruthi Nukalapati Reddy, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3800 Reservoir Road Nw, 6 Phc, Washington, DC 20007
Phone: 202-444-8123    
Dr. Kaustubh Subhash Yadwadkar, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3800 Reservoir Rd Nw, Cg201, Washington, DC 20007
Phone: 304-206-7595    
Dr. Monica Vohra, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1525 7th St Nw, Washington, DC 20001
Phone: 202-386-7020    Fax: 202-265-1970
Anteneh A Tesfaye, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 110 Irving St Nw Ste C2151, Washington, DC 20010
Phone: 202-877-6998    Fax: 202-877-8909
Erica Nakajima,
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 5255 Loughboro Rd Nw Fl 1, Washington, DC 20016
Phone: 202-660-6500    

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.