Karolee Fill, APN CNP
NPI 1407269038 · Nurse Practitioner · Arlington Heights, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karolee Fill, APN CNP is a Nurse Practitioner provider in Arlington Heights, IL (NPI 1407269038).
Provider details
- NPI number
- 1407269038
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN CNP
- Sex
- Female
- Sole proprietor
- No
- License
- 209-005590 (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
12 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
1,327 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 | 455 | $87 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 332 | $130 |
| Remote Monitoring of Pulmonary Artery Pressure Sensor, Up to 30 Days93264 | 214 | $33 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 165 | $15 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 161 | $121 |
Typical Medicare-allowed amounts for these services range $15–$130 (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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Spironolactone | 311 | 116 |
| Sacubitril/Valsartanbrand: Entresto | 236 | 59 |
| Empagliflozinbrand: Jardiance | 228 | 50 |
| Furosemide | 205 | 82 |
| Dapagliflozin Propanediolbrand: Farxiga | 183 | 43 |
| Carvedilol | 115 | 43 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$385 across 14 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
- 2014-06-11
- Last updated
- 2021-04-28
- Certified
- 2021-04-28
Frequently asked questions
- What is Karolee Fill's NPI number?
- Karolee Fill's National Provider Identifier (NPI) is 1407269038, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karolee Fill's specialty?
- Karolee Fill is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karolee Fill located?
- Karolee Fill's practice location on file with NPPES is 800 W Central Rd, Arlington Heights, IL 60005-2349.
- What is Karolee Fill's phone number?
- The practice phone number listed in the NPPES registry for Karolee Fill is (847) 618-2440.
- Does Karolee Fill accept Medicare?
- Karolee Fill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karolee Fill's NPI active?
- Yes — Karolee Fill's NPI (1407269038) is active in the NPPES registry as of the last update on 2021-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.