Gillian Long, FNP-C
NPI 1790345726 · Nurse Practitioner · Alton, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gillian Long, FNP-C is a Nurse Practitioner provider in Alton, IL (NPI 1790345726).
Provider details
- NPI number
- 1790345726
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 209018721 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
537 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 277 | $106 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 211 | $75 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 17 | $69 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 17 | $169 |
| Administration of Influenza Virus VaccineG0008 | 15 | $32 |
Typical Medicare-allowed amounts for these services range $32–$169 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tirzepatidebrand: Mounjaro | 131 | 41 |
| Tizanidine Hcl | 65 | 38 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 64 | 37 |
| Fluticasone Propionate | 45 | 16 |
| Omeprazole | 43 | 18 |
| Atorvastatin Calcium | 42 | 20 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$113 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-06-20
- Last updated
- 2025-09-19
- Certified
- 2025-09-19
Frequently asked questions
- What is Gillian Long's NPI number?
- Gillian Long's National Provider Identifier (NPI) is 1790345726, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gillian Long's specialty?
- Gillian Long is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gillian Long located?
- Gillian Long's practice location on file with NPPES is 1 Professional Dr, Alton, IL 62002-5068.
- What is Gillian Long's phone number?
- The practice phone number listed in the NPPES registry for Gillian Long is (618) 463-8500.
- Does Gillian Long accept Medicare?
- Gillian Long is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gillian Long's NPI active?
- Yes — Gillian Long's NPI (1790345726) is active in the NPPES registry as of the last update on 2025-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.