Sandra Zernzach-Schertz, NP
NPI 1841395464 · Family Nurse Practitioner · Fond Du Lac, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sandra Zernzach-Schertz, NP is a Family Nurse Practitioner provider in Fond Du Lac, WI (NPI 1841395464).
Provider details
- NPI number
- 1841395464
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 2748-033 (WI)
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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 96 | 44 |
| Levothyroxine Sodium | 86 | 40 |
| Amlodipine Besylate | 68 | 31 |
| Lovastatin | 67 | 31 |
| Lisinopril | 66 | 30 |
| Losartan Potassium | 56 | 29 |
| Omeprazole | 54 |
Practice location
Mailing address
Additional practice locations (1)
- 889 E Johnson StFond Du Lac, WI 54935-2933Phone: (920) 367-6700
Registry dates
- Enumerated
- 2006-09-14
- Last updated
- 2024-05-22
- Certified
- 2024-05-22
Frequently asked questions
- What is Sandra Zernzach-Schertz's NPI number?
- Sandra Zernzach-Schertz's National Provider Identifier (NPI) is 1841395464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Zernzach-Schertz's specialty?
- Sandra Zernzach-Schertz is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sandra Zernzach-Schertz located?
- Sandra Zernzach-Schertz's practice location on file with NPPES is 1081 E Johnson St, Fond Du Lac, WI 54935-8919.
- What is Sandra Zernzach-Schertz's phone number?
- The practice phone number listed in the NPPES registry for Sandra Zernzach-Schertz is (920) 367-6700.
- Does Sandra Zernzach-Schertz accept Medicare?
- Sandra Zernzach-Schertz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sandra Zernzach-Schertz's NPI active?
- Yes — Sandra Zernzach-Schertz's NPI (1841395464) is active in the NPPES registry as of the last update on 2024-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.