Keith Marshall Horton, MD - Medicare Diagnostic Radiology in Washington, DC

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Keith Marshall Horton, MD is a medicare enrolled "Radiology - Vascular & Interventional Radiology" physician in Washington, District Of Columbia. He went to University Of North Carolina At Chapel Hill School Of Medicine and graduated in 1985 and has 40 years of diverse experience with area of expertise as Diagnostic Radiology. He is a member of the group practice Medstar Medical Group Ii Llc, Medstar Medical Group Ii Llc and his current practice location is 110 Irving St Nw, Washington, District Of Columbia. You can reach out to his office (for appointments etc.) via phone at (202) 877-6429.

Keith Marshall Horton is licensed to practice in District Of Columbia (license number MD19020) 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 1841280443.

Contact Information

Keith Marshall Horton, MD
110 Irving St Nw,
Washington, DC 20010-2976
(202) 877-6429
(202) 877-8626

Map and Direction




Physician's Profile

Full NameKeith Marshall Horton
GenderMale
SpecialityDiagnostic Radiology
Experience40 Years
Location110 Irving 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:
  • Keith Marshall Horton attended and graduated from University Of North Carolina At Chapel Hill School Of Medicine in 1985
  NPI Data:
  • NPI Number: 1841280443
  • Provider Enumeration Date: 10/25/2005
  • Last Update Date: 04/22/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 7517038755
  • Enrollment ID: I20080617000021

Medical Identifiers

Medical identifiers for Keith Marshall Horton such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1841280443NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0202XRadiology - Diagnostic Radiology D0041656 (Maryland)Secondary
2085R0204XRadiology - Vascular & Interventional Radiology D0041656 (Maryland)Secondary
2085R0202XRadiology - Diagnostic Radiology MD19020 (District Of Columbia)Secondary
2085R0204XRadiology - Vascular & Interventional Radiology MD19020 (District Of Columbia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Medstar Washington Hospital CenterWashington, DCHospital
Medstar Southern Maryland Hospital CenterClinton, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Medstar Medical Group Ii Llc05474138252998
Medstar Medical Group Ii Llc05474138252998

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. Keith Marshall Horton allows following entities to bill medicare on his behalf.
Entity NamePhysician Imaging Of Washington Hospital Center Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831385871
PECOS PAC ID: 6204910292
Enrollment ID: O20080229000143
Entity NameWhc Physician Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700154226
PECOS PAC ID: 6103093513
Enrollment ID: O20120125000252
Entity NameMedstar Medical Group Ii Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184046187
PECOS PAC ID: 0547413825
Enrollment ID: O20130117000415
Entity NameUniversity Of Maryland Diagnostic Imaging Specialists, P A
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154335487
PECOS PAC ID: 7719873298
Enrollment ID: O20131121000450
Entity NameMedstar Medical Group Radiology, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326450156
PECOS PAC ID: 1557589157
Enrollment ID: O20140826000263

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. Keith Marshall Horton 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
Keith Marshall Horton, MD
1201 Seven Locks Rd, Suite 200,
Rockville, MD 20854-2931

Ph: (301) 652-5771		Keith Marshall Horton, MD
110 Irving St Nw,
Washington, DC 20010-2976

Ph: (202) 877-6429

Reviews and Comments


Radiology Doctors in Washington, DC

Kimberly Smith,
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Practice Location: 110 Irving St Nw, Washington, DC 20010
Phone: 301-902-1073    
Dr. Michael B Shvarts, MD
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Joel Bowers, M.D.
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Phone: 202-269-7000    
Krista Lyn Mcfarren, M.D.
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Phone: 202-966-0606    Fax: 202-244-6757
Ranjith Vellody, MD
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Medicare: Medicare Enrolled
Practice Location: 111 Michigan Ave Nw, Washington, DC 20010
Phone: 202-476-5000    

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.