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CAELIN ROUNTREE APNP
NPI 1982386975
Nurse Practitioner in Greenfield, WI

Active since August 01, 2023PECOS EnrolledAccepts Medicare Assignment
4448 W LOOMIS RD, GREENFIELD, WI 53220(414) 281-5150 Get Directions Write a Review

NPPES record last updated: December 29, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 29, 2025, Jun 27, 2024 (2 updates tracked since 2024).

About Caelin Rountree Apnp NPPES

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

CAELIN ROUNTREE APNP (NPI 1982386975) is an individual nurse practitioner in Greenfield, Wisconsin, licensed in Wisconsin (14335-33) and active in the NPI registry since August 2023. She is enrolled in Medicare PECOS, is affiliated with Froedtert Memorial Lutheran Hospital, and maintains a secondary practice location in Milwaukee.

NPPES Registry Identity

NPI1982386975
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameCAELIN ROUNTREECredential: APNP
Location Address4448 W LOOMIS RDGreenfield, WI 53220-4800
Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250
Phone(414) 281-5150
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateAugust 1, 2023
Last NPPES UpdateDecember 29, 20252 updates tracked since enumeration
NPPES CertifiedDecember 29, 2025
✔ NPI 1982386975 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in WI · 14335-33
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.
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 14335-33 (WI)
4448 W LOOMIS RD, Greenfield, WI 53220
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Secondary Practice Location 1

Location 19200 W Wisconsin AveMilwaukee, WI 53226-3522 · Phone (414) 805-6850 · Fax (414) 805-6864

Other Identifiers 1

Medicaid100281266WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Network Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Caelin Rountree 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.

PECOS PAC ID2163960196
PECOS Enrollment IDI20240821001718
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.

Hospital Affiliations CMS Care Compare

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

Froedtert Memorial Lutheran Hospital

Acute Care Hospitals · Milwaukee, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520177
Location9200 W Wisconsin AveMilwaukee, WI 53226 · Milwaukee County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53220 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.

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.

SUSAN L HAFEMANN APNP
Nurse Practitioner
4448 W LOOMIS RD
GREENFIELD, WI 53220
Milwaukee County (414) 281-5150
ANN MARIE MAGNIN PT
Physical Therapist
4448 W LOOMIS RD, #205
GREENFIELD, WI 53220
Milwaukee County (414) 281-5151
JACQUELINE M VETTER PT
Physical Therapist
4448 W LOOMIS RD, STE 205
GREENFIELD, WI 53220
Milwaukee County (414) 281-5151
AUSTYN ERICKSON
Dietitian, Registered
4448 W LOOMIS RD
GREENFIELD, WI 53220
Milwaukee County (414) 281-5150
MRS. REBECCA LYNN LANDGRAF MA CCCA
Audiologist
4448 W LOOMIS RD
GREENFIELD, WI 53220
Milwaukee County (414) 281-5150
KATHRYN M KIYONO MD
Family Medicine
4448 W LOOMIS RD, STE 100
GREENFIELD, WI 53220
Milwaukee County (414) 281-5150
AMANDA JO CARLSON DNP, FNP-BC
Nurse Practitioner
4448 W LOOMIS RD
GREENFIELD, WI 53220
Milwaukee County (414) 281-5150
KRISTIN L NASH PT
Physical Therapist
4448 W LOOMIS RD, #205
GREENFIELD, WI 53220
Milwaukee County (414) 281-5151

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 Caelin Rountree's NPI number?

The NPI number for Caelin Rountree is 1982386975. It was assigned to this individual provider in the NPPES registry on August 1, 2023.

Where is Caelin Rountree located?

Caelin Rountree practices at 4448 W Loomis Rd, Greenfield, WI 53220. The listed phone number is (414) 281-5150.

What is Caelin Rountree's specialty?

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

Is Caelin Rountree enrolled in Medicare?

Yes. Caelin Rountree 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.

What insurance does Caelin Rountree accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan and Network Health list Caelin Rountree 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 Caelin Rountree affiliated with any hospitals?

According to CMS data, Caelin Rountree is affiliated with Froedtert Memorial Lutheran Hospital.

When was this NPI record last updated?

The NPPES record for Caelin Rountree was last updated on December 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.