Crystal Sadowski, NP
NPI 1699566984 · Family Nurse Practitioner · Waterford, WI
Crystal Sadowski, NP is a Family Nurse Practitioner provider in Waterford, WI (NPI 1699566984).
Provider details
- NPI number
- 1699566984
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sole proprietor
- Yes
- License
- 16688-33 (WI)
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 tenure38% of score
1 yr 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
- 2025-05-15
- Last updated
- 2025-05-15
- Certified
- 2025-05-15
Frequently asked questions
- What is Crystal Sadowski's NPI number?
- Crystal Sadowski's National Provider Identifier (NPI) is 1699566984, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Sadowski's specialty?
- Crystal Sadowski is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Crystal Sadowski located?
- Crystal Sadowski's practice location on file with NPPES is 4823 Fairway Dr, Waterford, WI 53185-3389.
- What is Crystal Sadowski's phone number?
- The practice phone number listed in the NPPES registry for Crystal Sadowski is (414) 801-2145.
- Is Crystal Sadowski's NPI active?
- Yes — Crystal Sadowski's NPI (1699566984) is active in the NPPES registry as of the last update on 2025-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.