Isabel Butterfield
NPI 1154035111 · Family Nurse Practitioner · Springfield, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isabel Butterfield is a Family Nurse Practitioner provider in Springfield, IL (NPI 1154035111).
Provider details
- NPI number
- 1154035111
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 209.028027 (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 tenure33% of score
3 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 50 | 21 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 49 | 19 |
| Lisinopril | 35 | 13 |
| Fluticasone Propionate | 29 | 15 |
| Atorvastatin Calcium | 24 | 13 |
| Pantoprazole Sodium | 23 | — |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$58 across 1 record (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
- 2023-01-12
- Last updated
- 2024-10-09
- Certified
- 2024-10-09
Frequently asked questions
- What is Isabel Butterfield's NPI number?
- Isabel Butterfield's National Provider Identifier (NPI) is 1154035111, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabel Butterfield's specialty?
- Isabel Butterfield is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Isabel Butterfield located?
- Isabel Butterfield's practice location on file with NPPES is 2239 E Cook St, Springfield, IL 62703-1944.
- What is Isabel Butterfield's phone number?
- The practice phone number listed in the NPPES registry for Isabel Butterfield is (217) 788-2300.
- Does Isabel Butterfield accept Medicare?
- Isabel Butterfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isabel Butterfield's NPI active?
- Yes — Isabel Butterfield's NPI (1154035111) is active in the NPPES registry as of the last update on 2024-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.