Gillian K. Long, FNP-C
Nurse Practitioner · Alton, IL
Gillian K. Long, FNP-C is a nurse practitioner with a practice address in Alton, Illinois, and NPI 1790345726, issued on Jun 20, 2019. Check the license (Illinois 209018721, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gillian K. Long
- Credential
- FNP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 209018721 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1 Professional Dr, Alton, IL 62002
- Phone
- (618) 463-8500
- Enumerated
- Jun 20, 2019
- Record last updated
- Sep 19, 2025
- Fax
- (618) 433-6792
- Medicare enrollment
- Enrolled (PECOS I20191015002525); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 4,892 in Illinois → Look up another NPI →
Also registered at 1 Professional Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacqueline Baalman, FNP-BCFamily Nurse Practitioner1912236183
- William Bartley, MDInternal Medicine Physician1134112097
- Stephanie Gabathuler, M.D.Hospice and Palliative Medicine (Family Medicine) Physician1457647927
- Kristyn Hager, DPTPhysical Therapist1386047058
- Haley Kearby, PTAPhysical Therapy Assistant1770053928
- James Kliefoth, MDSurgery Physician1043203250
Verify Gillian K. Long in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209018721Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% more Medicare Part D claims than the average nurse practitioner in 2024
1,796 Medicare Part D claims for 484 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Mounjaro131 claims
- Tizanidine Hcl65 claims
- Albuterol Sulfate Hfa64 claims
- Fluticasone Propionate45 claims
- Omeprazole43 claims
- Atorvastatin Calcium42 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $112.78
7 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Fairview Heights Medical Group SCAlton, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gillian K. Long among 4,892 nurse practitioner records in Illinois
Gillian K. Long, FNP-C is one of 4,892 nurse practitioner records with a practice address in Illinois. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 54% of them.
- NPI issued2019 · 54% of these records are older, 39% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2018 · median 2018 among the 3,389 with a school on file
- Record last updated2025 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 nurse practitioner records list a practice address in Alton
They are 24 of the 1,113 NPPES records with a practice address in Alton, and 4,892 nurse practitioner records in Illinois.
All 4,892 in Illinois → Every provider in Alton → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Julie Benhoff, F.N.P.Alton, IL 620021902130941
- Misty Biciocchi, FNPAlton, IL 620021013214576
- Brandy Byrd, FNPAlton, IL 620021902217540
- Emily Cottrell, FNP-BCAlton, IL 620021295262459
- Sarah Davis, FNPAlton, IL 620021457911810
- Courtney Dulworth, NPAlton, IL 620021679941546
- Colleen Dunham, FNPAlton, IL 620021720532351
- Beth Lane, ANPAlton, IL 620021508110776
Common questions
What is Gillian K. Long, FNP-C's NPI number?
Gillian K. Long, FNP-C's National Provider Identifier (NPI) is 1790345726, issued on Jun 20, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Gillian K. Long, FNP-C located?
The NPPES record lists a practice address at 1 Professional Dr, Alton, IL, 62002. Phone: (618) 463-8500. Providers update this record themselves, so call before visiting.
How can I verify Gillian K. Long, FNP-C's license?
NPPES lists Illinois license number 209018721, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Gillian K. Long, FNP-C prescribe under Medicare Part D?
In 2024, Gillian K. Long, FNP-C had 1,796 Medicare Part D claims for 484 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.