Dan E. Williams, PA, PsyD
- Medicare patients, 2024
- 265
- Part D claims, 2024
- 696
- Industry payments
- $23
- Affiliated sites
- 1
- Medical groups
- 2
- Practice address
- 123 S Northwest Hwy, Park Ridge, IL 60068
- Practice phone
- Call (815) 713-2738
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Physicians Immediate Care - Park Ridge
Urgent Care Center · Park Ridge, Illinois
Find Dan Williams' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dan E. Williams is a physician assistant in Park Ridge, Illinois
Dan Williams practices at Physicians Immediate Care - Park Ridge in Park Ridge, Illinois.
Dan Williams' NPI, 1801874664, was assigned on January 3, 2006. Dan Williams holds Wisconsin license 3873-23.
- NPI
- 1801874664NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163313040
- NPI enumeration date
- January 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 713-2738
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dan E. Williams practices at Physicians Immediate Care - Park Ridge in Park Ridge, Illinois
Dan Williams' primary practice is Physicians Immediate Care - Park Ridge, at 123 S Northwest Hwy, Park Ridge, IL 60068. The practice phone is (815) 713-2738.
- Physicians Immediate Care - Park Ridge123 S Northwest Hwy, Park Ridge, IL 60068Phone(815) 713-2738
Source: Dmand AI Affiliation Data
Dan E. Williams is affiliated with 1 site of care and 2 medical groups
Dan Williams' primary practice is Physicians Immediate Care - Park Ridge in Park Ridge, Illinois. The medical group on file is Physicians Immediate Care. Dmand AI also links Dan Williams to 1 more medical group, named with a free account. Dan Williams' employer is on file too: an urgent care center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dan E. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dan Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Physicians Immediate Care - Park Ridge | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dan E. Williams is one of 543 physician assistants in Illinois
Medical is Dan Williams' primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Dmand AI has Dan Williams' licenses on file in 2 states: Wisconsin and Illinois.
Specialties and state licenses
- Medical physician assistant, WisconsinPrimary
- Illinois license
Physician assistants near Dan Williams
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dan E. Williams treated 265 Medicare patients in 2024, average age 73
CMS counts 265 Medicare patients who saw Dan Williams in 2024. The largest group is 65 to 74, with 138 patients. 67% of them have high blood pressure, and 64% have high cholesterol. 7% are also on Medicaid. Their average risk score is 0.89, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dan Williams' median patient age at 40, with 53% women.
Dan Williams' Medicare patients by age, 2024
Dan Williams' Medicare patients by sex, 2024
- Women16863%
- Men9737%
Chronic conditions among Dan Williams' Medicare patients, 2024
- High blood pressure67%
- High cholesterol64%
- Arthritis38%
- Diabetes24%
- Anxiety22%
- Ischemic heart disease21%
- Chronic kidney disease19%
- Mood disorders17%
Share of Medicare patients with each condition. A patient can have several.
Dan Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dan E. Williams wrote 696 Medicare Part D claims in 2024
In 2024, Dan Williams wrote 696 Medicare Part D claims for 442 patients. 93% of them were for generic drugs.
Dan Williams' Part D claims by kind of drug, 2024
- Generic645 claims93%
- Brand-name and other51 claims7%
Drug classes CMS tracks in Dan Williams' Part D claims, 2024
- Opioids4%26 of 696 claims
- Antibiotics43%298 of 696 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dan E. Williams takes part in Medicare
Dan Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dan E. Williams received $23 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dan Williams from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $23.
Companies that paid Dan Williams the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dan E. Williams's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dan E. Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dan E. Williams' NPI number?
Dan E. Williams' NPI number is 1801874664. It was assigned on January 3, 2006, and it is active in the NPI Registry.
What does Dan E. Williams specialize in?
Dan E. Williams is a physician assistant in Park Ridge, Illinois. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Dan E. Williams practice?
Dan Williams practices at 123 S Northwest Hwy, Park Ridge, IL 60068. Dan Williams' primary practice is Physicians Immediate Care - Park Ridge in Park Ridge, Illinois. Dmand AI also links Dan Williams to 1 medical group.
What is Dan E. Williams' office phone number?
The practice phone on file for Dan Williams is (815) 713-2738.
What is Dan E. Williams' medical license number?
Dan Williams holds Wisconsin license 3873-23, one of the licenses on file in 2 states.
Which states has Dan E. Williams been licensed in?
Dmand AI has state licenses on file for Dan Williams in Wisconsin and Illinois.
What medical group is Dan E. Williams part of?
Dan Williams is linked to Physicians Immediate Care. Dmand AI links Dan Williams to 1 more medical group.
Does Dan E. Williams accept Medicare?
Yes. CMS lists Dan Williams as accepting Medicare assignment.
How many Medicare patients does Dan E. Williams see?
CMS counts 265 Medicare patients who saw Dan Williams in 2024, with an average age of 73.
Has Dan E. Williams received payments from drug or device companies?
CMS Open Payments shows $23 in general payments to Dan Williams from 1 company from 2025 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dan E. Williams been practicing?
Dan Williams graduated from medical school in 1981, 45 years ago.
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