DAN E. WILLIAMS PA, PSYD
NPI 1801874664
Physician Assistant - Medical in Janesville, WI

Active since January 03, 2006PECOS EnrolledAccepts Medicare Assignment
3524 E MILWAUKEE ST, JANESVILLE, WI 53546(608) 756-7100(608) 756-4700 Get Directions Write a Review

NPPES record last updated: October 26, 2016. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dan E. Williams Pa, Psyd NPPES

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

DAN E. WILLIAMS PA, PSYD (NPI 1801874664) is an individual medical provider in Janesville, Wisconsin, licensed in Wisconsin (3873-23) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1981).

NPPES Registry Identity

NPI1801874664
Entity TypeIndividualMale
Primary Taxonomy363AM0700X
Provider Legal NameDAN E. WILLIAMSCredential: PA, PSYD
Location Address3524 E MILWAUKEE STJanesville, WI 53546-1626
Mailing Address3524 E Milwaukee StJanesville, WI 53546-1626 · (608) 756-7100 · Fax (608) 756-4700
Fax(608) 756-4700
Sole ProprietorNo
Medical School CMSOtherGraduated 1981
Enumeration DateJanuary 3, 2006
Last NPPES UpdateOctober 26, 2016
NPI 1801874664 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
Licenses Licensed in WI · 3873-23 Licensed in IL · 8500535
3524 E MILWAUKEE ST, Janesville, WI 53546

Other Identifiers 5

Medicaid1801874664WI
Other1801874664WI · Bcbswi
Medicare PIN207480 - K03439IL
OtherWILLIDANWI · Mercycare Insurance
Medicare UPINP24387IL

Accepted 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

Dan E. Williams Pa, Psyd 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 ID2163313040
PECOS Enrollment IDI20040322000591
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.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
99 services87 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
67 services67 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
67 services62 patients
Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) 87811
This is a test to detect COVID-19, the virus causing severe respiratory illness. It uses a method called immunoassay, which identifies the virus by its unique proteins. The test is directly observed for accuracy. It helps determine if you're currently infected.
66 services62 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
58 services58 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
45 services42 patients

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.

Physician Assistant
3524 E MILWAUKEE ST
JANESVILLE, WI 53546
Family Medicine
3524 E MILWAUKEE ST
JANESVILLE, WI 53546
Orthopaedic Surgery (Hand Surgery)
3524 E MILWAUKEE ST
JANESVILLE, WI 53546
Physical Therapist
3524 E MILWAUKEE ST
JANESVILLE, WI 53546
Physical Therapist
3524 E MILWAUKEE ST
JANESVILLE, WI 53546
Dietitian, Registered
3524 E MILWAUKEE ST
JANESVILLE, WI 53546
Internal Medicine
3524 E MILWAUKEE ST
JANESVILLE, WI 53546
Emergency Medicine
3524 E MILWAUKEE ST
JANESVILLE, WI 53546

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 Dan Williams's NPI number?

The NPI number for Dan Williams is 1801874664. It was assigned to this individual provider in the NPPES registry on January 3, 2006.

Where is Dan Williams located?

Dan Williams practices at 3524 E Milwaukee St, Janesville, WI 53546. The listed phone number is (608) 756-7100.

What is Dan Williams's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Dan Williams enrolled in Medicare?

Yes. Dan Williams 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 Dan Williams accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Dan Williams 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.

When was this NPI record last updated?

The NPPES record for Dan Williams was last updated on October 26, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.