Sarah Knobbe, FNP-BC
NPI 1578032546 · Nurse Practitioner · Warrenville, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Knobbe, FNP-BC is a Nurse Practitioner provider in Warrenville, IL (NPI 1578032546).
Provider details
- NPI number
- 1578032546
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 209.018266 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
144 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 144 | $70 |
Typical Medicare-allowed amounts for these services range $70–$70 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-11-19
- Last updated
- 2024-03-12
- Certified
- 2024-03-12
Frequently asked questions
- What is Sarah Knobbe's NPI number?
- Sarah Knobbe's National Provider Identifier (NPI) is 1578032546, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Knobbe's specialty?
- Sarah Knobbe is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sarah Knobbe located?
- Sarah Knobbe's practice location on file with NPPES is 4405 Weaver Pkwy, Warrenville, IL 60555-3269.
- What is Sarah Knobbe's phone number?
- The practice phone number listed in the NPPES registry for Sarah Knobbe is (630) 352-5450.
- Does Sarah Knobbe accept Medicare?
- Sarah Knobbe is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Knobbe's NPI active?
- Yes — Sarah Knobbe's NPI (1578032546) is active in the NPPES registry as of the last update on 2024-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.