Isaiah Mark Horton, MD - Medicare Internal Medicine in Bethesda, MD

Isaiah Mark Horton, MD is a medicare enrolled "Internal Medicine" physician in Bethesda, Maryland. He went to Loma Linda University School Of Medicine and graduated in 2018 and has 6 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Inova Health Care Services, Mcv Associated Physicians and his current practice location is Walter Reed National Military Medical Center, Bethesda, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 295-4900.

Isaiah Mark Horton is licensed to practice in Virginia (license number 0101268175) 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 1053803940.

Contact Information

Isaiah Mark Horton, MD
Walter Reed National Military Medical Center,
Bethesda, MD 20889-0001
(301) 295-4900
Not Available

Map and Direction




Physician's Profile

Full NameIsaiah Mark Horton
GenderMale
SpecialityInternal Medicine
Experience6 Years
LocationWalter Reed National Military Medical Center, Bethesda, Maryland
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:
  • Isaiah Mark Horton attended and graduated from Loma Linda University School Of Medicine in 2018
  NPI Data:
  • NPI Number: 1053803940
  • Provider Enumeration Date: 06/05/2018
  • Last Update Date: 04/29/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 2961810171
  • Enrollment ID: I20220511001635

Medical Identifiers

Medical identifiers for Isaiah Mark Horton such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1053803940NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 0101268175 (Virginia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Riverside Tappahannock HospitalTappahannock, VAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Inova Health Care Services24663510931725
Mcv Associated Physicians43855421171312

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. Isaiah Mark Horton allows following entities to bill medicare on his behalf.
Entity NameMcv Associated Physicians
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1710959457
PECOS PAC ID: 4385542117
Enrollment ID: O20031230000559

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. Isaiah Mark 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
Isaiah Mark Horton, MD
2111 Cambridge Park Ct,
Silver Spring, MD 20902-4351

Ph: (708) 800-1438
Isaiah Mark Horton, MD
Walter Reed National Military Medical Center,
Bethesda, MD 20889-0001

Ph: (301) 295-4900

Reviews and Comments


Internal Medicine Doctors in Bethesda, MD

Ardalan Enkeshafi, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6410 Rockledge Dr Ste 304, Bethesda, MD 20817
Phone: 443-602-6207    
Dr. Tara Palmore, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10 Center Dr, Msc 1888, Bethesda, MD 20892
Phone: 301-496-4000    
Dr. Cornelia Diana Cudrici, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10 Center Drive Bld 10 Rm 6n216a, Bethesda, MD 20892
Phone: 301-443-5519    
Shanthi Murgesh Nadar,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8600 Old Georgetown Road, Bethesda, MD 20814
Phone: 301-896-3100    
Dr. Nicole Jeanine Gormley, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 10 Center Dr, Bldg 10, Rm 2c145, Bethesda, MD 20892
Phone: 301-496-9320    
Dr. Harshkumar Patel, MBBS
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 10 Center Dr, Bethesda, MD 20892
Phone: 301-496-9320    Fax: 301-402-1213
Dr. Tung N Dao, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6410 Rockledge Dr, Ste 200, Bethesda, MD 20817
Phone: 301-897-5301    Fax: 301-564-4289

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.