Katharine Louzek, NP
NPI 1639390586 · Psychiatric/Mental Health Nurse Practitioner · Orchard Park, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharine Louzek, NP is a Psychiatric/Mental Health Nurse Practitioner provider in Orchard Park, NY (NPI 1639390586).
Provider details
- NPI number
- 1639390586
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Clinical Social Worker1041C0700X
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Haloperidol Decanoate | 111 | 11 |
| Clozapine | 68 | — |
| Olanzapine | 61 | — |
| Paliperidone Palmitatebrand: Invega Sustenna | 44 | — |
| Clozapinebrand: Clozapine Odt | 42 | — |
| Benztropine Mesylate | 38 | — |
| Aripiprazole | 29 | — |
| Haloperidol |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-01
- Last updated
- 2023-10-06
- Certified
- 2023-10-06
Frequently asked questions
- What is Katharine Louzek's NPI number?
- Katharine Louzek's National Provider Identifier (NPI) is 1639390586, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Louzek's specialty?
- Katharine Louzek is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katharine Louzek located?
- Katharine Louzek's practice location on file with NPPES is 227 Thorn Ave, Orchard Park, NY 14127-2600.
- What is Katharine Louzek's phone number?
- The practice phone number listed in the NPPES registry for Katharine Louzek is (716) 327-5346.
- Does Katharine Louzek accept Medicare?
- Katharine Louzek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharine Louzek's NPI active?
- Yes — Katharine Louzek's NPI (1639390586) is active in the NPPES registry as of the last update on 2023-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.