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

Dan E. Williams, PA, PSYD

Individual provider Medical Physician Assistant · NPI 1801874664

Dan E. Williams, PA, PSYD is a Physician Assistant in Janesville, Wisconsin. Qualified in 1981, 45 years ago. Practices with Physicians Immediate Care North Chicago LLC, a 261-clinician group and accepts Medicare assignment. Licensed in Illinois and Wisconsin.

Years since qualifying
45
Licensed in
IL, WI
In the registry since
2006
Specialties on file
2
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

3524 E Milwaukee St
Janesville, WI 53546-1626 Not confirmed with CMS for 10 years — call before visiting
Phone: (608) 756-7100
Fax: (608) 756-4700
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Physician Assistant (primary) Taxonomy 363AM0700X · Licence 3873-23 (WI)
Medical Physician Assistant Taxonomy 363AM0700X · Licence 8500535 (IL)

Record details

NPI number1801874664
Entity typeIndividual (Type 1)
GenderMale
Credentials PA , PSYD
Sole proprietorNo
NPI enumeratedJanuary 3, 2006
Last updated in NPPESOctober 26, 2016

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1981 (45 years in practice)
Group practice Physicians Immediate Care North Chicago Llc — 261 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients265
Services billed 579 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $23 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Physicians Immediate Care North Chicago LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 261 clinicians in the practice; 12 are shown here.

Other providers in Janesville