DR. MICHAEL CASEY FLANAGAN M.D.
NPI 1275516320
Internal Medicine - Advanced Heart Failure and Transplant Cardiology in Falls Church, VA

Active since November 22, 2005PECOS EnrolledAccepts Medicare Assignment
81.28/100
CMS Quality Rating
3300 GALLOWS RD, FALLS CHURCH, VA 22042(703) 776-4001(703) 776-7113 Get Directions Write a Review

NPPES record last updated: October 25, 2021. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Apr 16, 2021, Oct 20, 2020, Oct 9, 2018 (3 updates tracked since 2018).

About Dr. Michael Casey Flanagan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MICHAEL CASEY FLANAGAN M.D. (NPI 1275516320) is an individual advanced heart failure and transplant cardiology provider in Falls Church, Virginia, licensed in Virginia (0101238627) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Mary Washington Hospital, and maintains 7 additional practice locations.

NPPES Registry Identity

NPI1275516320
Entity TypeIndividualMale
Primary Taxonomy207RA0001X
Provider Legal NameDR. MICHAEL CASEY FLANAGANCredential: M.D.
Location Address3300 GALLOWS RDFalls Church, VA 22042-3300
Mailing AddressPo Box 37174Baltimore, MD 21297-3174 · (571) 423-5699 · Fax (571) 423-5698
Fax(703) 776-7113
Sole ProprietorNo
Medical School CMSTemple University School Of MedicineGraduated 2004
Enumeration DateNovember 22, 2005
Last NPPES UpdateOctober 25, 20213 updates tracked since enumeration
NPPES CertifiedOctober 25, 2021
NPI 1275516320 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · Advanced Heart Failure and Transplant CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RA0001X
License Licensed in VA · 0101238627
Definition

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License 0101238627 (VA)
Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 0101238627 (VA)
3300 GALLOWS RD, Falls Church, VA 22042

Secondary Practice Locations 7

Location 18901 Wisconsin Ave Cardiology DepartmentBethesda, MD 20889-5600 · Phone (301) 295-0390
Location 28081 Innovation Park Dr Ste 700Fairfax, VA 22031-4867 · Phone (571) 472-2900 · Fax (571) 742-2901
Location 31005 N Glebe Rd Ste 750Arlington, VA 22201-5766 · Phone (703) 524-7202 · Fax (703) 516-4501
Location 42901 Telestar Ct Ste 200Falls Church, VA 22042-1262 · Phone (703) 573-3494 · Fax (703) 573-5353
Location 521785 Filigree Ct Ste 203Ashburn, VA 20147-6214 · Phone (703) 933-2820 · Fax (571) 665-6820
Location 62501 Parkers LnAlexandria, VA 22306-3209 · Phone (703) 664-7000 · Fax (703) 664-7666
Location 71600 N Beauregard St Ste 150Alexandria, VA 22311-1732 · Phone (703) 776-6453 · Fax (703) 776-2797

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Michael Casey Flanagan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8820213671
PECOS Enrollment IDI20150709002382
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
162 services88 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
94 services32 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
46 services21 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
42 services42 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
36 services23 patients
Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244
A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.
13 services13 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mary Washington Hospital

Acute Care Hospitals · Fredericksburg, VA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490022
Location1001 Sam Perry BoulevardFredericksburg, VA 22401 · Fredericksburg City County
Emergency services Birthing friendly

Inova Alexandria Hospital

Acute Care Hospitals · Alexandria, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490040
Location4320 Seminary RdAlexandria, VA 22304 · Alexandria City County
Emergency services Birthing friendly

Inova Loudoun Hospital

Acute Care Hospitals · Leesburg, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490043
Location44045 Riverside ParkwayLeesburg, VA 20176 · Loudoun County
Emergency services Birthing friendly

Inova Fairfax Hospital

Acute Care Hospitals · Falls Church, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490063
Location3300 Gallows RoadFalls Church, VA 22042 · Fairfax County
Emergency services Birthing friendly

Inova Mount Vernon Hospital

Acute Care Hospitals · Alexandria, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490122
Location2501 Parkers LaneAlexandria, VA 22306 · Fairfax County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22042 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.28/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.77
Promoting Interoperability100
Improvement Activities40
Cost66.84

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pathology (Clinical Pathology/Laboratory Medicine)
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Pathology (Anatomic Pathology & Clinical Pathology)
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Pathology (Anatomic Pathology)
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Pathology (Anatomic Pathology & Clinical Pathology)
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Pathology (Anatomic Pathology & Clinical Pathology)
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Pathology (Anatomic Pathology & Clinical Pathology)
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Pathology (Anatomic Pathology & Clinical Pathology)
3300 GALLOWS RD
FALLS CHURCH, VA 22042
Pathology (Blood Banking & Transfusion Medicine)
3300 GALLOWS RD
FALLS CHURCH, VA 22042

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michael Flanagan's NPI number?

The NPI number for Michael Flanagan is 1275516320. It was assigned to this individual provider in the NPPES registry on November 22, 2005.

Where is Michael Flanagan located?

Michael Flanagan practices at 3300 Gallows Rd, Falls Church, VA 22042. The listed phone number is (703) 776-4001.

What is Michael Flanagan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Advanced Heart Failure and Transplant Cardiology, with taxonomy code 207RA0001X.

Is Michael Flanagan enrolled in Medicare?

Yes. Michael Flanagan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Michael Flanagan affiliated with any hospitals?

According to CMS data, Michael Flanagan is affiliated with Mary Washington Hospital, Inova Alexandria Hospital, Inova Loudoun Hospital, Inova Fairfax Hospital and Inova Mount Vernon Hospital.

When was this NPI record last updated?

The NPPES record for Michael Flanagan was last updated on October 25, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.