1. Home
  2. Directory
  3. Illinois
  4. Alton
  5. Nurse Practitioner
  6. NPI Profile

GILLIAN K LONG FNP-C
NPI 1790345726
Nurse Practitioner in Alton, IL

Active since June 20, 2019PECOS EnrolledAccepts Medicare Assignment
1 PROFESSIONAL DR, ALTON, IL 62002(618) 463-8500(618) 433-6792 Get Directions Write a Review

NPPES record last updated: September 19, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Sep 19, 2025, Apr 12, 2024, Aug 19, 2022 and 2 more (5 updates tracked since 2019).

About Gillian K Long Fnp-c NPPES

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

GILLIAN K LONG FNP-C (NPI 1790345726) is an individual nurse practitioner in Alton, Illinois, licensed in Illinois (209018721) and active in the NPI registry since June 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1790345726
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameGILLIAN K LONGCredential: FNP-C
Location Address1 PROFESSIONAL DRAlton, IL 62002-5068
Mailing Address660 Mason Ridge Center Dr Ste 300Saint Louis, MO 63141-8512 · (314) 448-3791 · Fax (314) 996-7658
Phone(618) 463-8500
Fax(618) 433-6792
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateJune 20, 2019
Last NPPES UpdateSeptember 19, 20255 updates tracked since enumeration
NPPES CertifiedSeptember 19, 2025
✔ NPI 1790345726 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in IL · 209018721
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
1 PROFESSIONAL DR, Alton, IL 62002
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

Gillian K Long Fnp-c 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 ID9133450653
PECOS Enrollment IDI20191015002525
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 6

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.
277 services203 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.
211 services173 patients
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 87428
This test uses a method called immunoassay to identify severe acute respiratory syndrome coronavirus and influenza. It works by detecting specific proteins (antigens) in a sample, like a nasal swab. It's a powerful tool in diagnosing these viral infections.
17 services17 patients
Transitional care management services for problem of at least moderate complexity 99495
Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.
17 services16 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.
15 services15 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62002 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
$88.44 typical visit price
range $56.28 – $173.35
Typical copayment $22.11 (range $14.07 – $43.33)
Most-billed visit code 99203
Established Patient
$99.71 typical visit price
range $17.51 – $139.99
Typical copayment $24.92 (range $4.37 – $34.99)
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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Standard wheelchair K0001
DME-Wheelchairs · category DD000N
2 suppliers19 claims19 services$14.67 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
3 suppliers23 claims23 services$182.11 avg. paid by Medicare
Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513
DME-Other DME · category DE000N
3 suppliers13 claims13 services$18.39 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

DR. JAMES A KLIEFOTH MD
Surgery
1 PROFESSIONAL DR, STE 150
ALTON, IL 62002
Madison County (618) 463-8660
DR. WILLIAM RAY BARTLEY MD
Internal Medicine
1 PROFESSIONAL DR, SUITE 220
ALTON, IL 62002
Madison County (618) 463-8626
MEGAN SAUER DO
Obstetrics & Gynecology
1 PROFESSIONAL DR
ALTON, IL 62002
Madison County (618) 463-8555
ALTON MULTISPECIALISTS, LTD.
Clinic/Center (Radiology, Mammography)
1 PROFESSIONAL DR
ALTON, IL 62002
Madison County (618) 463-8500
MADALYN SHAW
Physical Therapist
1 PROFESSIONAL DR
ALTON, IL 62002
Madison County (618) 462-4621
ELIZABETH ANNE SCHRUMPF CNP
Nurse Practitioner (Family)
1 PROFESSIONAL DR
ALTON, IL 62002
Madison County (618) 463-8574
DR. KELLY J LINDSEY MD
Pediatrics
1 PROFESSIONAL DR, SUITE 250
ALTON, IL 62002
Madison County (618) 463-8636
ABIGAIL MARIE LORENTZ
Physical Therapist
1 PROFESSIONAL DR, SUITE 10
ALTON, IL 62002
Madison County (618) 462-4621

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 Gillian Long's NPI number?

The NPI number for Gillian Long is 1790345726. It was assigned to this individual provider in the NPPES registry on June 20, 2019.

Where is Gillian Long located?

Gillian Long practices at 1 Professional Dr, Alton, IL 62002. The listed phone number is (618) 463-8500.

What is Gillian Long's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Gillian Long enrolled in Medicare?

Yes. Gillian Long 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.

When was this NPI record last updated?

The NPPES record for Gillian Long was last updated on September 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.