MS. JENNIFER WOLLACH HARTLAUB APNP
NPI 1962519579
Nurse Practitioner in Milwaukee, WI
About Ms. Jennifer Wollach Hartlaub Apnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. JENNIFER WOLLACH HARTLAUB APNP (NPI 1962519579) is an individual nurse practitioner in Milwaukee, Wisconsin, licensed in Wisconsin (978-033) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1996).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Jennifer Wollach Hartlaub Apnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Jennifer Hartlaub reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53215
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 clinicians in this Medicare group
Milwaukee, WI 53215
- Reassigned Medicare billing, Wisconsin enrollment
- 297 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53233 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MILWAUKEE, WI 53233
MILWAUKEE, WI 53233
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Jennifer Hartlaub's NPI number?
The NPI number for Jennifer Hartlaub is 1962519579. It was assigned to this individual provider in the NPPES registry on August 23, 2006. The provider is also known as Jennifer Wollach Trewyn.
Where is Jennifer Hartlaub located?
Jennifer Hartlaub practices at 945 N 12th St, Milwaukee, WI 53233. The listed phone number is (414) 219-6000.
What is Jennifer Hartlaub's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Jennifer Hartlaub enrolled in Medicare?
Yes. Jennifer Hartlaub is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Jennifer Hartlaub's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Hartlaub reassigns Medicare benefits to 2 organizations: Aurora Medical Group, Inc. (Milwaukee, WI) and Aurora Health Care Metro, Inc. (Milwaukee, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jennifer Hartlaub's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jennifer Hartlaub accept?
Health plans from Aspirus Health Plan, CareSource (Common Ground Healthcare) and UnitedHealthcare list Jennifer Hartlaub as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Jennifer Hartlaub was last updated on October 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Ms. Jennifer Wollach Hartlaub, APNP · NPI 1962519579
Nurse Practitioner physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since August 23, 2006.
## Identity
- **NPI:** 1962519579 (Entity type: Individual)
- **Enumerated:** August 23, 2006
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 978-033 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 945 N 12TH ST, Milwaukee, WI 53233-1305
- **Phone:** (414) 219-6000 · **Fax:** (414) 385-5113
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Aurora Medical Group, Inc. (NPI 1427271378, Milwaukee, WI); Aurora Health Care Metro, Inc. (NPI 1861447179, Milwaukee, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1996
## Record status
- **NPPES last updated:** October 25, 2023
- **Other identifiers:** Medicaid 43852600 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1962519579) · Data from the CMS NPPES public registry.