Cathlyn Cwiek, NP
NPI 1669175154 · Psychiatric/Mental Health Nurse Practitioner · Rancho Cucamonga, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cathlyn Cwiek, NP is a Psychiatric/Mental Health Nurse Practitioner provider in Rancho Cucamonga, CA (NPI 1669175154).
Provider details
- NPI number
- 1669175154
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- AP61431543 (WA)
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 tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-03-23
- Last updated
- 2026-04-14
- Certified
- 2026-04-14
Frequently asked questions
- What is Cathlyn Cwiek's NPI number?
- Cathlyn Cwiek's National Provider Identifier (NPI) is 1669175154, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cathlyn Cwiek's specialty?
- Cathlyn Cwiek is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cathlyn Cwiek located?
- Cathlyn Cwiek's practice location on file with NPPES is 9065 Haven Ave Ste 110, Rancho Cucamonga, CA 91730-5429.
- What is Cathlyn Cwiek's phone number?
- The practice phone number listed in the NPPES registry for Cathlyn Cwiek is (909) 757-5770.
- Does Cathlyn Cwiek accept Medicare?
- Cathlyn Cwiek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cathlyn Cwiek's NPI active?
- Yes — Cathlyn Cwiek's NPI (1669175154) is active in the NPPES registry as of the last update on 2026-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.