DR. VIJAYAKUMAR SOMASEKHARAN NAIR MD, FACS
NPI 1891752234
Internal Medicine - Critical Care Medicine in Oak Lawn, IL

Q: What is Vijayakumar Nair's NPI number?

The NPI number for Vijayakumar Nair is 1891752234. It was assigned to this individual provider in the NPPES registry on April 28, 2006. The provider is also known as Vijay Nair.

Q: What is Vijayakumar Nair's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Vijayakumar Nair was last updated on May 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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 28, 2006PECOS EnrolledAccepts Medicare Assignment

9555 S 52ND AVE, OAK LAWN, IL 60453(708) 684-6867(708) 684-6869 Get Directions Write a Review

NPPES record last updated: May 30, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 30, 2025, Dec 20, 2021 (2 updates tracked since 2021).

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About Dr. Vijayakumar Somasekharan Nair Md, Facs NPPES

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

DR. VIJAYAKUMAR SOMASEKHARAN NAIR MD, FACS (NPI 1891752234) is an individual critical care medicine provider in Oak Lawn, Illinois, licensed in Illinois (036108208) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Presence Mercy Medical Center, and maintains a secondary practice location in Downers Grove.

NPPES Registry Identity

NPI1891752234

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameDR. VIJAYAKUMAR SOMASEKHARAN NAIRCredential: MD, FACS

Location Address9555 S 52ND AVEOak Lawn, IL 60453-3054

Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900

Phone(708) 684-6867

Fax(708) 684-6869

Sole ProprietorNo

Medical School CMSOtherGraduated 1987

Enumeration DateApril 28, 2006

Last NPPES UpdateMay 30, 20252 updates tracked since enumeration

NPPES CertifiedMay 30, 2025

✔ NPI 1891752234 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in IL · 036108208

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedSurgeryTaxonomy 208600000X · License 036108208 (IL)

Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License 036108208 (IL)

Also ListedSurgery · Trauma SurgeryTaxonomy 2086S0127X · License 036108208 (IL)

9555 S 52ND AVE, Oak Lawn, IL 60453

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Other Names 1

Other Name (5)Vijay Nair

Secondary Practice Location 1

Location 13815 Highland Ave, Tower 2, Suite 107Downers Grove, IL 60515-1500 · Phone (630) 275-7800 · Fax (630) 810-9240

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare), 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

Dr. Vijayakumar Somasekharan Nair Md, Facs 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 ID3476454133

PECOS Enrollment IDI20040115000891

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 Vijayakumar Nair reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Advocate Health And Hospitals Corporation

0.7 mi

Mental Health (Including Community Mental Health Center)

4700 W 95TH ST, SUITE LOWER LEVEL 5
Oak Lawn, IL 60453

Reassigned Medicare billing, Illinois enrollment
4,870 clinicians in this Medicare group

NPI 1174747075 (800) 216-1110

Aurora Medical Group, Inc.

89 mi

Nurse Anesthetist, Certified Registered

3301 W FOREST HOME AVE
Milwaukee, WI 53215

Reassigned Medicare billing, Wisconsin enrollment
4,609 clinicians in this Medicare group

NPI 1427271378 (877) 576-3544

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 8

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.

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.

147 services122 patients

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.

146 services116 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.

55 services53 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

23 services18 patients

Removal of gallbladder using an endoscope 47562

This procedure, known as endoscopic gallbladder removal, involves a surgeon using a special tool called an endoscope to remove your gallbladder through small incisions. It's typically done to treat gallstones and related complications. It's a less invasive method, often leading to quicker recovery.

19 services19 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

18 services18 patients

Hospital Affiliations CMS Care Compare 2

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

Presence Mercy Medical Center

Acute Care Hospitals · Aurora, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140174

Location1325 N Highland AvenueAurora, IL 60506 · Kane County

Emergency services Birthing friendly

Advocate Good Samaritan Hospital

Acute Care Hospitals · Downers Grove, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140288

Location3815 Highland AvenueDowners Grove, IL 60515 · Du Page County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60453 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

$138.86 typical visit price

range $60.08 – $183.39

Typical copayment $34.71 (range $15.02 – $45.84)

Most-billed visit code 99204

Established Patient

$105.70 typical visit price

range $18.97 – $148.12

Typical copayment $26.42 (range $4.74 – $37.03)

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 20

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

ELIZABETH M PAYMENT MD

Family Medicine