Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

William W Chase, MD

Individual provider Family Medicine Physician · NPI 1841259504

William W Chase, MD is registered under Family Practice in Norwalk, Iowa. Graduated from University of Iowa, Rj & L Carver College of Medicine in 2000, 26 years ago. Practices with Iowa Physicians Clinic Medical Foundation, a 1,242-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
26
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
IA
In the registry since
2006
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

801 Colonial Cir Ste 200
Norwalk, IA 50211-9626 Not confirmed with CMS for 14 years — call before visiting
Phone: (515) 285-3200
Fax: (515) 285-3232
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 34287 (IA)

Record details

NPI number1841259504
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 21, 2006
Last updated in NPPESAugust 15, 2012

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Iowa Physicians Clinic Medical Foundation — 1242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 30 times · 68th percentile
Melanoma (skin cancer) excision 1–10 times
Removal or shaving of skin growth 1–10 times
Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients367
Services billed 4,339 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Unitypoint At Home Home health agency · Urbandale, IA
  • Mercyone Des Moines Medical Center Hospital · Des Moines, IA
  • Unitypoint Health - Des Moines Iowa Methodist Medi Hospital · Des Moines, IA

Colleagues at Iowa Physicians Clinic Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1242 clinicians in the practice; 12 are shown here.

Other providers in Norwalk