Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Richard Jonathan Willes, MD

Individual provider Pediatric Cardiology Physician · NPI 1821384264

Richard Jonathan Willes, MD is a Cardiovascular Disease (Cardiology) in Marshfield, Wisconsin. Qualified in 2011, 15 years ago. Practices with Mchs Hospitals Inc, a 1,194-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Nevada and Wisconsin.

Years since qualifying
15
Licensed in
NV, WI
In the registry since
2011
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1000 N Oak Ave
Marshfield, WI 54449-5703
Phone: (715) 387-5511
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 3006 S Maryland Pkwy Ste 690, Las Vegas, NV 89109-2297 — (702) 990-4819
  • 9000 W Wisconsin Ave, Milwaukee, WI 53226-4874 — (414) 266-6457

Specialties & licences

Pediatric Cardiology Physician (primary) Taxonomy 2080P0202X · Licence 62462 (WI)
Pediatric Cardiology Physician Taxonomy 2080P0202X · Licence 17105 (NV)

Record details

NPI number1821384264
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2011
Last updated in NPPESMay 9, 2025
Certification dateApril 29, 2025
Mailing address1000 N Oak Ave, Marshfield, WI 54449-5703

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesPEDIATRIC MEDICINE
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice McHs Hospitals Inc — 1194 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

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