Karen E Johnson, MD - Medicare Internal Medicine in Alexandria, VA

Karen E Johnson, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Alexandria, Virginia. Her current practice location is 2000 North Beauregard St, Ste 360, Alexandria, Virginia. You can reach out to her office (for appointments etc.) via phone at (703) 924-9004.

Karen E Johnson is licensed to practice in Virginia (license number 0101054749) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1285707018.

Contact Information

Karen E Johnson, MD
2000 North Beauregard St, Ste 360,
Alexandria, VA 22311
(703) 924-9004
(703) 924-9067

Map and Direction




Physician's Profile

Full NameKaren E Johnson
GenderFemale
SpecialityInternal Medicine - Pulmonary Disease
Location2000 North Beauregard St, Alexandria, Virginia
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1285707018
  • Provider Enumeration Date: 11/17/2006
  • Last Update Date: 05/12/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 0244284875
  • Enrollment ID: I20050308000231

Medical Identifiers

Medical identifiers for Karen E Johnson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1285707018NPI-NPPES
010188946MedicaidVA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0200XInternal Medicine - Critical Care Medicine 0101054749 (Virginia)Secondary
207RP1001XInternal Medicine - Pulmonary Disease 0101054749 (Virginia)Primary

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. Karen E Johnson allows following entities to bill medicare on her behalf.
Entity NameInova Health Care Services
Entity TypePart B Supplier - Hospital Department(s)
Entity IdentifiersNPI Number: 1952320061
PECOS PAC ID: 2466351093
Enrollment ID: O20110104000695

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. Karen E Johnson 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
Karen E Johnson, MD
2000 North Beauregard St, Ste 360,
Alexandria, VA 22311

Ph: (703) 924-9004
Karen E Johnson, MD
2000 North Beauregard St, Ste 360,
Alexandria, VA 22311

Ph: (703) 924-9004

Reviews and Comments


Internal Medicine Doctors in Alexandria, VA

George Peter Silis, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 5115 Franconia Road, Sutie G, Alexandria, VA 22310
Phone: 703-922-4222    Fax: 703-922-4253
Dr. Madhusudanan Srambickal Ramaswamy, M.D., M.S.
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 4320 Seminary Rd, Alexandria, VA 22304
Phone: 703-504-3000    Fax: 571-285-0027
Nabeela Tabassum, M.D.
Pulmonary Disease
Medicare: Not Enrolled in Medicare
Practice Location: 4810 Beauregard St, Ste 303, Alexandria, VA 22312
Phone: 703-750-0108    Fax: 703-750-0230
Dr. Chinedu Madu, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 4825 Mark Center Dr Ste 150, Alexandria, VA 22311
Phone: 703-751-8111    Fax: 703-751-1105
Kim-dung T Nguyen, M.D.
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 5130 Duke St, 8, Alexandria, VA 22304
Phone: 703-823-2849    Fax: 703-823-2847
Dr. Muhammed F. Khokhar,
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 4660 Kenmore Ave Ste 810, Alexandria, VA 22304
Phone: 703-823-0333    Fax: 703-823-8611
Tariq Rehman, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 4141a Duke St, Alexandria, VA 22304
Phone: 703-461-3556    Fax: 703-461-8075

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.