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RICHARD JONATHAN WILLES M.D.
NPI 1821384264
Pediatrics - Pediatric Cardiology in Marshfield, WI

Active since June 23, 2011PECOS EnrolledAccepts Medicare Assignment
82.79/100
CMS Quality Rating
1000 N OAK AVE, MARSHFIELD, WI 54449(715) 387-5511 Get Directions Write a Review

NPPES record last updated: May 9, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 9, 2025, Jul 21, 2022, Apr 2, 2021 and 2 more (5 updates tracked since 2017).

About Richard Jonathan Willes M.d. NPPES

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

RICHARD JONATHAN WILLES M.D. (NPI 1821384264) is an individual pediatric cardiology provider in Marshfield, Wisconsin, licensed in Wisconsin (62462) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with Marshfield Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1821384264
Entity TypeIndividualMale
Primary Taxonomy2080P0202X
Provider Legal NameRICHARD JONATHAN WILLESCredential: M.D.
Location Address1000 N OAK AVEMarshfield, WI 54449-5703
Mailing Address1000 N Oak AveMarshfield, WI 54449-5703 · (715) 387-5511
Phone(715) 387-5511
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateJune 23, 2011
Last NPPES UpdateMay 9, 20255 updates tracked since enumeration
NPPES CertifiedApril 29, 2025
✔ NPI 1821384264 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0202X
Licenses✔ Licensed in WI · 62462✔ Licensed in NV · 17105
Definition
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.
1000 N OAK AVE, Marshfield, WI 54449
Open in Google Maps ↗

Secondary Practice Locations 2

Location 19000 W Wisconsin Ave, PEDIATRIC CARDIOLOGYMilwaukee, WI 53226-4874 · Phone (414) 266-6457 · Fax (414) 266-2294
Location 23006 S Maryland Pkwy Ste 690Las Vegas, NV 89109-2297 · Phone (702) 990-4819 · Fax (702) 260-1926

Other Identifiers 1

Medicaid1821384264WI

Accepted Insurance

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

Richard Jonathan Willes M.d. 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 ID6305086570
PECOS Enrollment IDI20181025000238
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

2

Medicare enrollment records show Richard Willes reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Marshfield Clinic Inc
1.2 mi
Clinic/Center
1000 N OAK AVE
Marshfield, WI 54449
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,540 clinicians in this Medicare group
NPI 1952347981 (715) 387-5511
Mchs Hospitals Inc
1.2 mi
Clinic/Center
1000 N OAK AVE
Marshfield, WI 54449
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,476 clinicians in this Medicare group
NPI 1093221434 (715) 387-5511

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

Hospital Affiliations CMS Care Compare 2

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

Marshfield Medical Center

Acute Care Hospitals · Marshfield, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520037
Location611 St Joseph AveMarshfield, WI 54449 · Wood County
Emergency services Birthing friendly

Marshfield Medical Center - Eau Claire

Acute Care Hospitals · Eau Claire, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520210
Location2310 Craig RdEau Claire, WI 54701 · Eau Claire County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.79/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality68.98
Promoting Interoperability99
Improvement Activities40
Cost66.19

Referred Medical Equipment & Supplies CMS DME claims 2

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier12 claims12 services$17.71 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$107.47 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

ALISON RAE SAMPSON D.O.
Obstetrics & Gynecology
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5161
TAMARA L. LEAHY NP
Nurse Practitioner
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (800) 782-8581
SAMANTHA ELAINE MOORE RD, CD, CDCES
Dietitian, Registered
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 389-7464
ROBERT BUNDY
Student in an Organized Health Care Education/Training Program
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5511
EUGENE H. LARSON PA
Physician Assistant
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5245
JAMES SKIBBA CRNA
Nurse Anesthetist, Certified Registered
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-7179
KENNETH E ENGELHART MD
Internal Medicine
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5704
KRISTIN M GERNDT MD
Radiology (Vascular & Interventional Radiology)
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 389-3474

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 Richard Willes's NPI number?

The NPI number for Richard Willes is 1821384264. It was assigned to this individual provider in the NPPES registry on June 23, 2011.

Where is Richard Willes located?

Richard Willes practices at 1000 N Oak Ave, Marshfield, WI 54449. The listed phone number is (715) 387-5511.

What is Richard Willes's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Is Richard Willes enrolled in Medicare?

Yes. Richard Willes 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 Richard Willes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Richard Willes reassigns Medicare benefits to 2 organizations: Marshfield Clinic Inc (Marshfield, WI) and Mchs Hospitals Inc (Marshfield, 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 Richard Willes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Richard Willes accept?

Health plans from Anthem Blue Cross and Blue Shield, HealthPartners, Network Health, Sanford Health Plan and Security Health Plan list Richard Willes 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 Richard Willes affiliated with any hospitals?

According to CMS data, Richard Willes is affiliated with Marshfield Medical Center and Marshfield Medical Center - Eau Claire.

When was this NPI record last updated?

The NPPES record for Richard Willes was last updated on May 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.