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MICHAEL KIM
NPI 1235495219
Internal Medicine in Fairfax, VA

Active since April 04, 2012PECOS EnrolledAccepts Medicare Assignment
81.28/100
CMS Quality Rating
3580 JOSEPH SIEWICK DR STE 306, FAIRFAX, VA 22033(703) 391-4520(703) 391-4521 Get Directions Write a Review

NPPES record last updated: November 27, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 21, 2020, Sep 9, 2020 (2 updates tracked since 2020).

About Michael Kim NPPES

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

MICHAEL KIM (NPI 1235495219) is an individual internal medicine provider in Fairfax, Virginia, licensed in Virginia (0101258997) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Inova Loudoun Hospital, and maintains 9 additional practice locations.

NPPES Registry Identity

NPI1235495219
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMICHAEL KIM
Location Address3580 JOSEPH SIEWICK DR STE 306Fairfax, VA 22033-1764
Mailing Address3580 Joseph Siewick Dr Ste 306Fairfax, VA 22033-1764 · (703) 391-4520 · Fax (703) 391-4521
Phone(703) 391-4520
Fax(703) 391-4521
Sole ProprietorNo
Medical School CMSVirginia Commonwealth University, School Of MedicineGraduated 2012
Enumeration DateApril 4, 2012
Last NPPES UpdateNovember 27, 20232 updates tracked since enumeration
NPPES CertifiedOctober 21, 2020
✔ NPI 1235495219 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in VA · 0101258997✔ Licensed in VA · 101258997
Definition
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
3580 JOSEPH SIEWICK DR STE 306, Fairfax, VA 22033
Open in Google Maps ↗

Secondary Practice Locations 9

Location 13600 Joseph Siewick DrFairfax, VA 22033-1709 · Phone (703) 391-3558 · Fax (703) 391-3441
Location 23300 Gallows Rd Fl 1Falls Church, VA 22042-3307 · Phone (703) 776-4005 · Fax (703) 776-7068
Location 38081 Innovation Park Dr Ste 200Fairfax, VA 22031-4867 · Phone (571) 472-7000 · Fax (571) 472-7001
Location 41005 N Glebe Rd Ste 710Arlington, VA 22201-5766 · Phone (571) 302-3903 · Fax (571) 302-3904
Location 56355 Walker Ln Ste 500Alexandria, VA 22310-3251 · Phone (703) 373-3718 · Fax (703) 822-2190
Location 644045 Riverside PkwyLeesburg, VA 20176-5101 · Phone (703) 858-6000 · Fax (703) 858-6900
Location 71225 Martha Custis Dr Ste C1Alexandria, VA 22302-2040 · Phone (703) 671-2700 · Fax (703) 671-7007
Location 819500 Sandridge Way Ste 200Leesburg, VA 20176-3689 · Phone (703) 840-7300 · Fax (703) 840-7301
Location 93300 Gallows RdFalls Church, VA 22042-3300 · Phone (703) 776-4001 · Fax (703) 776-7113

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Michael Kim 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 ID9133362635
PECOS Enrollment IDI20180517002338
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Michael Kim reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Fair Oaks Hospitalist Physicians, PLLC
0.1 mi
Hospitalist
3600 JOSEPH SIEWICK DR
Fairfax, VA 22033
  • Reassigned Medicare billing, District of Columbia enrollment
  • 113 clinicians in this Medicare group
NPI 1275601205 (571) 294-2032
Inova Health Care Services
6.3 mi
Urgent Care
100 MAPLE AVE E
Vienna, VA 22180
  • Reassigned Medicare billing, Virginia and District of Columbia enrollments
  • Also billed through NPI 1669511051 (District of Columbia)
  • 2,379 clinicians in this Medicare group
NPI 1275886418 (703) 938-5300

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

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 low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
98 services65 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
77 services77 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
42 services25 patients
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 87428
This test uses a method called immunoassay to identify severe acute respiratory syndrome coronavirus and influenza. It works by detecting specific proteins (antigens) in a sample, like a nasal swab. It's a powerful tool in diagnosing these viral infections.
18 services16 patients
Detection test by immunoassay with direct visual observation for respiratory syncytial virus 87807
This is a test to identify the respiratory syncytial virus, a common cause of lung and respiratory tract infections. It uses immunoassay, a method that detects the virus through a reaction between the virus and specific antibodies. The result is visually observed.
18 services16 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
16 services16 patients

Hospital Affiliations CMS Care Compare 3

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

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 Fair Oaks Hospital

Acute Care Hospitals · Fairfax, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number490101
Location3600 Joseph Siewick DriveFairfax, VA 22033 · Fairfax County
Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22033 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

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
99%187 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 5

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

DR. BRIAN JOSEPH MASTERSON MD, MPH
Psychiatry & Neurology (Psychiatry)
3580 JOSEPH SIEWICK DR STE 306
FAIRFAX, VA 22033
Fairfax County (703) 391-4520
SANDY F IBRAHIM MD
Family Medicine
3580 JOSEPH SIEWICK DR STE 306
FAIRFAX, VA 22033
Fairfax County (703) 391-4520
SHEILA HAUTBOIS PA-C
Physician Assistant
3580 JOSEPH SIEWICK DR STE 306
FAIRFAX, VA 22033
Fairfax County (703) 391-4520
TUCKER J LANDRY LCSW
Social Worker (Clinical)
3580 JOSEPH SIEWICK DR STE 306
FAIRFAX, VA 22033
Fairfax County (703) 391-4520
OLUWASEYI OLUMIDE AJAYI M.D.
Internal Medicine
3580 JOSEPH SIEWICK DR STE 306
FAIRFAX, VA 22033
Fairfax County (703) 391-4520

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 Kim's NPI number?

The NPI number for Michael Kim is 1235495219. It was assigned to this individual provider in the NPPES registry on April 4, 2012.

Where is Michael Kim located?

Michael Kim practices at 3580 Joseph Siewick Dr Ste 306, Fairfax, VA 22033. The listed phone number is (703) 391-4520.

What is Michael Kim's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Michael Kim enrolled in Medicare?

Yes. Michael Kim 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.

Which organizations bill Medicare for Michael Kim's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Kim reassigns Medicare benefits to 2 organizations: Fair Oaks Hospitalist Physicians, PLLC (Fairfax, VA) and Inova Health Care Services (Vienna, VA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Kim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Kim accept?

Health plans from Oscar Health list Michael Kim as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Michael Kim affiliated with any hospitals?

According to CMS data, Michael Kim is affiliated with Inova Loudoun Hospital, Inova Fairfax Hospital and Inova Fair Oaks Hospital.

When was this NPI record last updated?

The NPPES record for Michael Kim was last updated on November 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.