MRS. SANDRA K ZERNZACH-SCHERTZ (NP) – Family Nurse Practitioner, NPI 1841395464
Family Nurse Practitioner
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
6,035 NURSE PRACTITIONER in WI
Provider Addresses for MRS. SANDRA K ZERNZACH-SCHERTZ (NP)
889 E Johnson St
Fond Du Lac, WI 549352933
Phone: (920) 367-6700
Type: Location
1081 E JOHNSON ST
FOND DU LAC, WI 549358919
Phone: (920) 367-6700
Type: Location
2725, Jackson Street, Oshkosh, Town of Oshkosh, Winnebago County, Wisconsin, 54901, United States
OSHKOSH, WI 549011513
Phone: (920) 223-7600
Type: Mailing
889 E JOHNSON ST
FOND DU LAC, WI 549352933
Phone: (920) 367-6700
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2006-04-25
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20060425000234 | I | Nurse Practitioner | WI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 36415 | Insertion of needle into vein for collection of blood sample | 91 | 50 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 72 | 52 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 43 | 43 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 37 | 30 | $0 |
| 99497 | Advance care planning, first 30 minutes | 24 | 24 | $0 |
Insurance plans in this area (ZIP 54935)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NURSE PRACTITIONER | WI | 90670 | Pneumococcal vaccine for injection into muscle | 12 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| Nurse Practitioner | WI | |
| Nurse Practitioner | WI | |
| Emergency Medicine | FL | |
| Nurse Practitioner | WI | |
| Internal Medicine | WI | |
| Nurse Practitioner | WI | |
| Physician Assistant | IN | |
| Nurse Practitioner | WI | |
| Nurse Practitioner | WI |
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