CAROLINE KWON MD
NPI 1285912857
Internal Medicine - Nephrology in Fairfax, VA

Q: What is Caroline Kwon's NPI number?

The NPI number for Caroline Kwon is 1285912857. It was assigned to this individual provider in the NPPES registry on July 29, 2011.

Q: What is Caroline Kwon's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Caroline Kwon was last updated on June 21, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.

Active since July 29, 2011PECOS EnrolledAccepts Medicare Assignment

3930 WALNUT ST, SUITE 101, FAIRFAX, VA 22030(703) 246-9246(703) 246-9257 Get Directions Write a Review

NPPES record last updated: June 21, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Caroline Kwon Md NPPES

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

CAROLINE KWON MD (NPI 1285912857) is an individual nephrology provider in Fairfax, Virginia, licensed in Virginia (0101259942) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS, is affiliated with Inova Alexandria Hospital, and is a graduate of Eastern Virginia Medical School (2011).

NPPES Registry Identity

NPI1285912857

Entity TypeIndividualFemale

Primary Taxonomy207RN0300X

Provider Legal NameCAROLINE KWONCredential: MD

Location Address3930 WALNUT ST, SUITE 101Fairfax, VA 22030-4738

Mailing Address3930 Walnut St, Suite 101Fairfax, VA 22030-4738 · (703) 246-9246 · Fax (703) 246-9257

Phone(703) 246-9246

Fax(703) 246-9257

Sole ProprietorNo

Medical School CMSEastern Virginia Medical SchoolGraduated 2011

Enumeration DateJuly 29, 2011

Last NPPES UpdateJune 21, 2016

✔ NPI 1285912857 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in VA · 0101259942

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

3930 WALNUT ST, Fairfax, VA 22030

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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

Caroline Kwon Md 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 ID8729203344

PECOS Enrollment IDI20160810000039

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 Reassignment

Medicare enrollment records show Caroline Kwon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Virginia Nephrology Group, LLP

Same address

Nephrology

3930 WALNUT STREET, SUITE 101
Fairfax, VA 22030

Reassigned Medicare billing, District of Columbia and Virginia enrollments
16 clinicians in this Medicare group

NPI 1013001601 (703) 246-9246

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.

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.

770 services382 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.

430 services211 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

216 services203 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

95 services31 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

80 services15 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.

52 services52 patients

Hospital Affiliations CMS Care Compare 4

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

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

Virginia Hospital Center

Acute Care Hospitals · Arlington, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490050

Location1701 North George Mason DriveArlington, VA 22205 · Arlington 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 22030 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.

Other Providers at the Same Location NPPES 11

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

DR. CHANG HA LEE D.C.

Chiropractor

3930 WALNUT ST, SUITE 220
FAIRFAX, VA 22030

Fairfax City (703) 865-5899

RHEUMATOLOGY AND INTERNAL MEDICINE, PC

Internal Medicine

3930 WALNUT ST, SUITE 101
FAIRFAX, VA 22030

Fairfax City (703) 349-1191

ANU N. RALAPATI, MD PC

Internal Medicine (Geriatric Medicine)

3930 WALNUT ST
FAIRFAX, VA 22030

Fairfax City (703) 591-9320

FINALLY HEAR LLC

Hearing Aid Equipment

3930 WALNUT ST, STE 240
FAIRFAX, VA 22030

Fairfax City (703) 273-5005

DR. ANURADHA NEELAM REDDY MD

Internal Medicine (Geriatric Medicine)

3930 WALNUT ST, #101
FAIRFAX, VA 22030

Fairfax City (703) 591-9320

VANESSA ANGELA N DUCO NP

Nurse Practitioner (Family)

3930 WALNUT ST
FAIRFAX, VA 22030

Fairfax City (703) 246-9246

DR. MARIA OBEID DNP, AGNP-BC

Nurse Practitioner (Adult Health)

3930 WALNUT ST, SUITE 220
FAIRFAX, VA 22030

Fairfax City (703) 246-9505

OMNISPINE CHIROPRACTIC & REHAB CLINIC PC

Chiropractor

3930 WALNUT ST, SUITE 220
FAIRFAX, VA 22030

Fairfax City (703) 865-5899

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 Caroline Kwon's NPI number?

The NPI number for Caroline Kwon is 1285912857. It was assigned to this individual provider in the NPPES registry on July 29, 2011.

Where is Caroline Kwon located?

Caroline Kwon practices at 3930 Walnut St Suite 101, Fairfax, VA 22030. The listed phone number is (703) 246-9246.

What is Caroline Kwon's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Caroline Kwon enrolled in Medicare?

Yes. Caroline Kwon 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 organization bills Medicare for Caroline Kwon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Caroline Kwon reassigns Medicare benefits to Virginia Nephrology Group, LLP (Fairfax, VA). The 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 Caroline Kwon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Caroline Kwon affiliated with any hospitals?

According to CMS data, Caroline Kwon is affiliated with Inova Alexandria Hospital, Virginia Hospital Center, Inova Fairfax Hospital and Inova Fair Oaks Hospital.

When was this NPI record last updated?

The NPPES record for Caroline Kwon was last updated on June 21, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.