Katherine Nass, NP
NPI 1598442873 · Family Nurse Practitioner · St Charles, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Nass, NP is a Family Nurse Practitioner provider in St Charles, IL (NPI 1598442873).
Provider details
- NPI number
- 1598442873
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 041.454587 (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
2 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 22 | 11 |
| Prednisone | 20 | 15 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 16 | 13 |
| Azelastine Hcl | 16 | — |
| Ipratropium Bromide | 16 | — |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 14 | — |
| Fluticasone Propion/Salmeterolbrand: Fluticasone-Salmeterol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$608 across 27 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
- 2023-06-29
- Last updated
- 2024-01-05
- Certified
- 2024-01-05
Frequently asked questions
- What is Katherine Nass's NPI number?
- Katherine Nass's National Provider Identifier (NPI) is 1598442873, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Nass's specialty?
- Katherine Nass is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Nass located?
- Katherine Nass's practice location on file with NPPES is 2210 Dean St Ste M, St Charles, IL 60175-1059.
- What is Katherine Nass's phone number?
- The practice phone number listed in the NPPES registry for Katherine Nass is (630) 668-9610.
- Does Katherine Nass accept Medicare?
- Katherine Nass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Nass's NPI active?
- Yes — Katherine Nass's NPI (1598442873) is active in the NPPES registry as of the last update on 2024-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.