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DIANA GUILLAUME NP
NPI 1396037685
Nurse Practitioner - Adult Health in Skokie, IL

Active since May 05, 2011PECOS EnrolledAccepts Medicare Assignment
4120 DEMPSTER ST, SKOKIE, IL 60076(224) 601-7032(224) 257-7432 Get Directions Write a Review

NPPES record last updated: April 14, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 14, 2026, Jun 6, 2025, Nov 4, 2024 and 1 more (4 updates tracked since 2015).

About Diana Guillaume Np NPPES

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

DIANA GUILLAUME NP (NPI 1396037685) is an individual adult health provider in Skokie, Illinois, licensed in Illinois (277.005282) and active in the NPI registry since May 2011. She is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1396037685
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameDIANA GUILLAUMECredential: NP
Location Address4120 DEMPSTER STSkokie, IL 60076-2101
Mailing AddressPo Box 746715Atlanta, GA 30374-6715 · (224) 601-7032 · Fax (224) 257-7432
Phone(224) 601-7032
Fax(224) 257-7432
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateMay 5, 2011
Last NPPES UpdateApril 14, 20264 updates tracked since enumeration
NPPES CertifiedApril 14, 2026
✔ NPI 1396037685 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in IL · 277.005282
4120 DEMPSTER ST, Skokie, IL 60076
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Diana Guillaume Np 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 ID42532806
PECOS Enrollment IDI20141204002482
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.

Areas of Expertise CMS Part B claims 4

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 straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
72 services42 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
32 services18 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.
15 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.
13 services13 patients

Hospital Affiliations CMS Care Compare

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

Northshore University Healthsystem - Evanston Hospital

Acute Care Hospitals · Evanston, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140010
Location2650 Ridge AveEvanston, IL 60201 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60076 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
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 2

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

MARCO PALOMO
Family Medicine
4120 DEMPSTER ST
SKOKIE, IL 60076
Cook County (224) 601-7032
ROBERT JOHN PRADO SAQUETON MD
Internal Medicine
4120 DEMPSTER ST
SKOKIE, IL 60076
Cook County (224) 601-7032

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 Diana Guillaume's NPI number?

The NPI number for Diana Guillaume is 1396037685. It was assigned to this individual provider in the NPPES registry on May 5, 2011.

Where is Diana Guillaume located?

Diana Guillaume practices at 4120 Dempster St, Skokie, IL 60076. The listed phone number is (224) 601-7032.

What is Diana Guillaume's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Diana Guillaume enrolled in Medicare?

Yes. Diana Guillaume 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.

Is Diana Guillaume affiliated with any hospitals?

According to CMS data, Diana Guillaume is affiliated with Northshore University Healthsystem - Evanston Hospital.

When was this NPI record last updated?

The NPPES record for Diana Guillaume was last updated on April 14, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.