DR. AARTHI VIJAYKUMAR M.D.
NPI 1821215856
Internal Medicine - Nephrology in Elgin, IL

Q: What is Aarthi Vijaykumar's NPI number?

The NPI number for Aarthi Vijaykumar is 1821215856. It was assigned to this individual provider in the NPPES registry on April 19, 2007.

Q: What is Aarthi Vijaykumar'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 Aarthi Vijaykumar was last updated on May 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 April 19, 2007PECOS EnrolledAccepts Medicare Assignment

1710 N RANDALL RD STE 330, ELGIN, IL 60123(847) 531-5911(847) 531-5922 Get Directions Write a Review

NPPES record last updated: May 27, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 27, 2022, Dec 14, 2021, Nov 9, 2020 and 1 more (4 updates tracked since 2019).

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About Dr. Aarthi Vijaykumar M.d. NPPES

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

DR. AARTHI VIJAYKUMAR M.D. (NPI 1821215856) is an individual nephrology provider in Elgin, Illinois, licensed in Illinois (036117659) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and is a graduate of Rush Medical College Of Rush University (2004).

NPPES Registry Identity

NPI1821215856

Entity TypeIndividualFemale

Primary Taxonomy207RN0300X

Provider Legal NameDR. AARTHI VIJAYKUMARCredential: M.D.

Location Address1710 N RANDALL RD STE 330Elgin, IL 60123-9405

Mailing Address120 W 22nd StOak Brook, IL 60523-1557 · (630) 573-5000

Phone(847) 531-5911

Fax(847) 531-5922

Sole ProprietorYes

Medical School CMSRush Medical College Of Rush UniversityGraduated 2004

Enumeration DateApril 19, 2007

Last NPPES UpdateMay 27, 20224 updates tracked since enumeration

NPPES CertifiedMay 27, 2022

✔ NPI 1821215856 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 IL · 036117659

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.

1710 N RANDALL RD STE 330, Elgin, IL 60123

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.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

Dr. Aarthi Vijaykumar 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 ID1658466271

PECOS Enrollment IDI20070927000489

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

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

Northwestern Medical Faculty Foundation

4.4 mi

Multi-Specialty

DEPT 5777
Carol Stream, IL 60122

Reassigned Medicare billing, Illinois enrollment
4,817 clinicians in this Medicare group

NPI 1346235314 (855) 694-2866

Nephrology Associates Of Northern Illinois, Ltd.

26 mi

Nephrology

120 W 22ND ST
Oak Brook, IL 60523

Reassigned Medicare billing, Illinois enrollment
161 clinicians in this Medicare group

NPI 1134319924 (630) 573-5000

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 11

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 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

378 services174 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.

330 services156 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.

187 services109 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.

180 services31 patients

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.

149 services121 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

136 services117 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.

98 services28 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.

25 services25 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.

24 services24 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

16 services16 patients

Dialysis services, 2-3 physician visits per month (20 years or older) 90961

Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.

15 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Advocate Sherman Hospital

Acute Care Hospitals · Elgin, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140030

Location1425 North Randall RoadElgin, IL 60123 · Kane County

Emergency services Birthing friendly

Presence Saint Joseph Hospital - Elgin

Acute Care Hospitals · Elgin, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140217

Location77 N Airlite StreetElgin, IL 60123 · Kane County

Emergency services

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140242

Location25 North Winfield RoadWinfield, IL 60190 · Du Page County

Emergency services Birthing friendly

Northwest Community Hospital 1

Acute Care Hospitals · Arlington Heights, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140252

Location800 W Central RoadArlington Heights, IL 60005 · Cook County

Emergency services Birthing friendly

Advocate Good Shepherd Hospital

Acute Care Hospitals · Barrington, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140291

Location450 West Highway 22Barrington, IL 60010 · Lake County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60123 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

$137.43 typical visit price

range $59.81 – $181.38

Typical copayment $34.35 (range $14.95 – $45.34)

Most-billed visit code 99204

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

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 2

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

AAMIR A MEMON M.D.

Internal Medicine (Nephrology)

1710 N RANDALL RD STE 330
ELGIN, IL 60123

Kane County (847) 531-5911

LINDSEY A KELLER APRN, FNP-BC

Nurse Practitioner (Family)

1710 N RANDALL RD STE 330
ELGIN, IL 60123

Kane County (847) 531-5911

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 Aarthi Vijaykumar's NPI number?

The NPI number for Aarthi Vijaykumar is 1821215856. It was assigned to this individual provider in the NPPES registry on April 19, 2007.

Where is Aarthi Vijaykumar located?

Aarthi Vijaykumar practices at 1710 N Randall Rd Ste 330, Elgin, IL 60123. The listed phone number is (847) 531-5911.

What is Aarthi Vijaykumar's specialty?

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

Is Aarthi Vijaykumar enrolled in Medicare?

Yes. Aarthi Vijaykumar 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 Aarthi Vijaykumar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aarthi Vijaykumar reassigns Medicare benefits to 2 organizations: Northwestern Medical Faculty Foundation (Carol Stream, IL) and Nephrology Associates Of Northern Illinois, Ltd. (Oak Brook, IL). 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 Aarthi Vijaykumar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aarthi Vijaykumar accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Aarthi Vijaykumar 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 Aarthi Vijaykumar affiliated with any hospitals?

According to CMS data, Aarthi Vijaykumar is affiliated with Advocate Sherman Hospital, Presence Saint Joseph Hospital - Elgin, Northwestern Medicine Central Dupage Hospital, Northwest Community Hospital 1 and Advocate Good Shepherd Hospital.

When was this NPI record last updated?

The NPPES record for Aarthi Vijaykumar was last updated on May 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.