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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MRS. LYNN ANNETTE RINGENOLDUS APRN-NP
NPI 1053740761
Nurse Practitioner in Berlin, WI

Active since November 03, 2013PECOS EnrolledAccepts Medicare Assignment
191 MEMORIAL DR STE 300, BERLIN, WI 54923(920) 361-5717(920) 361-6361 Get Directions Write a Review

NPPES record last updated: October 8, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Mrs. Lynn Annette Ringenoldus Aprn-np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. LYNN ANNETTE RINGENOLDUS APRN-NP (NPI 1053740761) is an individual nurse practitioner in Berlin, Wisconsin, licensed in Wisconsin (5510-33) and active in the NPI registry since November 2013. She is enrolled in Medicare PECOS, is affiliated with Berlin Memorial Hospital, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1053740761
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMRS. LYNN ANNETTE RINGENOLDUSCredential: APRN-NP
Location Address191 MEMORIAL DR STE 300Berlin, WI 54923-1241
Mailing Address191 Memorial Dr Ste 300Berlin, WI 54923-1241 · (920) 361-5717 · Fax (920) 361-6361
Phone(920) 361-5717
Fax(920) 361-6361
Sole ProprietorYes
Medical School CMSOtherGraduated 2013
Enumeration DateNovember 3, 2013
Last NPPES UpdateOctober 8, 2026
NPPES CertifiedOctober 8, 2026
✔ NPI 1053740761 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in WI · 5510-33
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
191 MEMORIAL DR STE 300, Berlin, WI 54923
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Other Names 1

Former Name (1)Lynn A Berglund

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) and more.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

Mrs. Lynn Annette Ringenoldus Aprn-np 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.

PECOS PAC ID7416188842
PECOS Enrollment IDI20140327000525
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Lynn Ringenoldus reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Thedacare Medical Center - Berlin, Inc.
Same address
Anesthesiology
225 MEMORIAL DR
Berlin, WI 54923
  • Reassigned Medicare billing, Wisconsin enrollment
  • 104 clinicians in this Medicare group
NPI 1275943367 (920) 361-5538
Thedacare Medical Center - Wild Rose, Inc
21 mi
Critical Access
601 GROVE AVE
Wild Rose, WI 54984
  • Reassigned Medicare billing, Wisconsin enrollment
  • 42 clinicians in this Medicare group
NPI 1043263999 (920) 622-3257
Thedacare, Incorporated
30 mi
Family Medicine
1405 MILL ST
New London, WI 54961
  • Reassigned Medicare billing, Wisconsin enrollment
  • 988 clinicians in this Medicare group
NPI 1376656959 (920) 830-5900

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
208 services186 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
31 services27 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Berlin Memorial Hospital

Critical Access Hospitals · Berlin, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521355
Location225 Memorial DriveBerlin, WI 54923 · Green Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54923 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 17

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
10 suppliers254 claims254 services$41.75 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
10 suppliers219 claims219 services$97.29 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
10 suppliers227 claims542 services$39.42 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
8 suppliers86 claims385 services$22.97 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
7 suppliers38 claims114 services$17.33 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
10 suppliers139 claims139 services$66.42 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Lynn Ringenoldus's NPI number?

The NPI number for Lynn Ringenoldus is 1053740761. It was assigned to this individual provider in the NPPES registry on November 3, 2013. The provider is also known as Lynn A Berglund.

Where is Lynn Ringenoldus located?

Lynn Ringenoldus practices at 191 Memorial Dr Ste 300, Berlin, WI 54923. The listed phone number is (920) 361-5717.

What is Lynn Ringenoldus's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Lynn Ringenoldus enrolled in Medicare?

Yes. Lynn Ringenoldus 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 Lynn Ringenoldus's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lynn Ringenoldus reassigns Medicare benefits to 3 organizations: Thedacare Medical Center - Berlin, Inc. (Berlin, WI), Thedacare Medical Center - Wild Rose, Inc (Wild Rose, WI) and Thedacare, Incorporated (New London, 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 Lynn Ringenoldus's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lynn Ringenoldus accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), HealthPartners and Network Health and 1 other insurer list Lynn Ringenoldus 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.

Is Lynn Ringenoldus affiliated with any hospitals?

According to CMS data, Lynn Ringenoldus is affiliated with Berlin Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Lynn Ringenoldus was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 days 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.