Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. NANCY SHILIAN DO, MPH
NPI 1164059499
Family Medicine in Buffalo Grove, IL

Q: What is Nancy Shilian's NPI number?

The NPI number for Nancy Shilian is 1164059499. It was assigned to this individual provider in the NPPES registry on March 25, 2020.

Q: What is Nancy Shilian's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Nancy Shilian was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 48 days 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 March 25, 2020PECOS EnrolledAccepts Medicare Assignment

600 W LAKE COOK RD STE 160, BUFFALO GROVE, IL 60089(847) 632-1880 Get Directions Write a Review

NPPES record last updated: September 2, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 2, 2026, Jan 7, 2021, Apr 15, 2020 and 1 more (4 updates tracked since 2020).

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About Dr. Nancy Shilian Do, Mph NPPES

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

DR. NANCY SHILIAN DO, MPH (NPI 1164059499) is an individual family medicine provider in Buffalo Grove, Illinois, licensed in Illinois (036176936) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1164059499

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameDR. NANCY SHILIANCredential: DO, MPH

Location Address600 W LAKE COOK RD STE 160Buffalo Grove, IL 60089-2091

Mailing Address2650 Ridge Ave Ste 1223Evanston, IL 60201-1700

Phone(847) 632-1880

Sole ProprietorNo

Medical School CMSOtherGraduated 2020

Enumeration DateMarch 25, 2020

Last NPPES UpdateSeptember 2, 20264 updates tracked since enumeration

NPPES CertifiedSeptember 2, 2026

✔ NPI 1164059499 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

Licenses✔ Licensed in IL · 036176936✔ Licensed in NY · 317539

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

600 W LAKE COOK RD STE 160, Buffalo Grove, IL 60089

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Secondary Practice Locations 2

Location 1393 Old Country RdCarle Place, NY 11514-2131 · Phone (516) 877-0977

Location 2196 Merrick RdOceanside, NY 11572-1420 · Phone (516) 255-8400

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. Nancy Shilian Do, Mph 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 ID7416301171

PECOS Enrollment IDI20230928002372

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

Icahn School Of Medicine At Mount Sinai

731 mi

Internal Medicine

222 WEST 14TH STREET
New York, NY 10011

Reassigned Medicare billing, New York enrollment
309 clinicians in this Medicare group

NPI 1568841930 (212) 604-1800

Icahn School Of Medicine At Mount Sinai

750 mi

Cardiovascular Disease

200 OLD COUNTRY RD, SUITE 278
Mineola, NY 11501

Reassigned Medicare billing, New York enrollment
31 clinicians in this Medicare group

NPI 1487016507 (516) 877-0977

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 12

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.

95 services59 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.

41 services34 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.

39 services39 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.

27 services22 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.

24 services24 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.

24 services18 patients

Annual depression screening, 5 to 15 minutes G0444

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

24 services24 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

19 services19 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

19 services19 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

16 services15 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

16 services16 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.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60089 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

$93.02 typical visit price

range $59.81 – $181.38

Typical copayment $23.25 (range $14.95 – $45.34)

Most-billed visit code 99203

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.

PATRICK HINES DO

Family Medicine

600 W LAKE COOK RD STE 160
BUFFALO GROVE, IL 60089

Lake County (847) 632-1880

ALEX ZACHARY STOLLER MS, RDN

Dietitian, Registered

600 W LAKE COOK RD STE 160
BUFFALO GROVE, IL 60089

Lake County (847) 632-1880

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 Nancy Shilian's NPI number?

The NPI number for Nancy Shilian is 1164059499. It was assigned to this individual provider in the NPPES registry on March 25, 2020.

Where is Nancy Shilian located?

Nancy Shilian practices at 600 W Lake Cook Rd Ste 160, Buffalo Grove, IL 60089. The listed phone number is (847) 632-1880.

What is Nancy Shilian's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Nancy Shilian enrolled in Medicare?

Yes. Nancy Shilian 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 Nancy Shilian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Shilian reassigns Medicare benefits to 2 organizations: Icahn School Of Medicine At Mount Sinai (New York, NY) and Icahn School Of Medicine At Mount Sinai (Mineola, NY). 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 Nancy Shilian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Nancy Shilian was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 48 days 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.