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NPISignal

Individual Healthcare Provider

Michael Casey Flanagan, M.D.

NPI Record: ActiveInternal Medicine — Advanced Heart Failure and Transplant Cardiology
NPI1275516320
Falls Church, Virginia

Provider's NPPES record last updated: October 25, 2021

Overview

Entity Type
Individual Healthcare Provider
NPI
1275516320
Primary Specialty
Internal Medicine — Advanced Heart Failure and Transplant Cardiology
Practice Location
Falls Church, Virginia
Sole Proprietor
No

Federal Screening

NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.

List of Excluded Individuals/Entities (LEIE)

HHS Office of Inspector General

No potential match identified

No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.

Source data
September 10, 2026
Records indexed
84,001
Screened
Sep 18, 2026, 4:21 AM UTC

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

SAM.gov Exclusions

U.S. General Services Administration

Not checked

SAM.gov Exclusions was not checked.

SAM.gov screening is not configured on this deployment. No SAM check has been performed.

Screened
Not checked

This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

Run a name-based screening

Searches OIG LEIE and SAM.gov by name and reviews every potential match.

Specialties & Taxonomies

  • Internal Medicine

    Advanced Heart Failure and Transplant Cardiology

    Allopathic & Osteopathic Physicians

    Primary

    Specialists in Advanced Heart Failure and Transplant Cardiology would participate in the inpatient and outpatient management of patients with advanced heart failure across the spectrum from consideration for high-risk cardiac surgery, cardiac transplantation, or mechanical circulatory support, to pre-and post-operative evaluation and management of patients with cardiac transplants and mechanical support devices, and end-of-life care for patients with end-stage heart failure.

    Taxonomy code 207RA0001X
  • Internal Medicine

    Allopathic & Osteopathic Physicians

    A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

    Taxonomy code 207R00000X
  • Internal Medicine

    Cardiovascular Disease

    Allopathic & Osteopathic Physicians

    An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

    Taxonomy code 207RC0000X

Provider-Reported License Information

Internal Medicine (Virginia)
0101238627
Internal Medicine (Virginia)
0101238627
Internal Medicine (Virginia)
0101238627
License numbers are reported by the provider to NPPES and are not independently verified by NPISignal against any state licensing board. Confirm current license status directly with the issuing state board.

Practice Locations

Practice Location

3300 Gallows Rd

Falls Church, Virginia 22042-3300

Phone: (703) 776-4001

Additional Practice Location

8901 Wisconsin Ave Cardiology Department

Bethesda, Maryland 20889-5600

Phone: (301) 295-0390

Additional Practice Location

21785 Filigree Ct Ste 203

Ashburn, Virginia 20147-6214

Phone: (703) 933-2820

Fax: (571) 665-6820

Additional Practice Location

8081 Innovation Park Dr Ste 700

Fairfax, Virginia 22031-4867

Phone: (571) 472-2900

Fax: (571) 742-2901

Additional Practice Location

1600 N Beauregard St Ste 150

Alexandria, Virginia 22311-1732

Phone: (703) 776-6453

Fax: (703) 776-2797

Additional Practice Location

2501 Parkers Ln

Alexandria, Virginia 22306-3209

Phone: (703) 664-7000

Fax: (703) 664-7666

Additional Practice Location

1005 N Glebe Rd Ste 750

Arlington, Virginia 22201-5766

Phone: (703) 524-7202

Fax: (703) 516-4501

Additional Practice Location

2901 Telestar Ct Ste 200

Falls Church, Virginia 22042-1262

Phone: (703) 573-3494

Fax: (703) 573-5353

Record Information

Enumeration Date
November 22, 2005
Provider's NPPES Record Last Updated
October 25, 2021
Certification Date
October 25, 2021
NPISignal NPPES Dataset
August 2026

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