William S. McWhirter
- Medicare patients, 2024
- 137
- Hospital affiliations
- 1
- Industry payments
- $110
- Medical group
- 1
- State licenses
- 2
- Practice address
- 2900 N Lake Shore Dr, Chicago, IL 60657
- Practice phone
- Call (773) 665-3827
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascension Illinois - Imaging Chicago
Mammography / Breast Imaging Center · Chicago, Illinois
Find William McWhirter's 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.
William S. McWhirter is a nurse anesthetist in Chicago, Illinois
William McWhirter practices at Ascension Illinois - Imaging Chicago in Chicago, Illinois.
William McWhirter's NPI, 1285345660, was assigned on December 7, 2022. William McWhirter holds Illinois license 209.026960.
- NPI
- 1285345660NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991162653
- NPI enumeration date
- December 7, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 665-3827
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
William S. McWhirter practices at Ascension Illinois - Imaging Chicago in Chicago, Illinois
William McWhirter's primary practice is Ascension Illinois - Imaging Chicago, at 2900 N Lake Shore Dr, Chicago, IL 60657. The practice phone is (773) 665-3827.
- Ascension Illinois - Imaging Chicago2900 N Lake Shore Dr, Chicago, IL 60657Phone(773) 665-3827
Source: Dmand AI Affiliation Data
William S. McWhirter is affiliated with 2 sites of care and 1 medical group
William McWhirter's primary practice is Ascension Illinois - Imaging Chicago in Chicago, Illinois. William McWhirter is also affiliated with Ascension Saint Joseph - Chicago. The medical group on file is Northstar Anesthesia.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at William S. McWhirter's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William McWhirter practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension Illinois - Imaging Chicago | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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William S. McWhirter is one of 2,003 nurse anesthetists in Illinois
Nurse anesthetist, certified registered is William McWhirter's primary specialty in the NPI Registry, under taxonomy code 367500000X. Dmand AI has William McWhirter's licenses on file in 2 states: Illinois and Missouri.
Specialties and state licenses
- Certified registered nurse anesthetist, IllinoisPrimary
- Registered nurse, Missouri
Nurse anesthetists near William McWhirter
Counts of nurse anesthetists 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
William S. McWhirter treated 137 Medicare patients in 2024, average age 76
CMS counts 137 Medicare patients who saw William McWhirter in 2024. The largest group is 75 to 84, with 63 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts William McWhirter's median patient age at 68, with 51% women.
William McWhirter's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
William McWhirter's Medicare patients by sex, 2024
- Women8260%
- Men5540%
Chronic conditions among William McWhirter's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Mood disorders34%
- Chronic kidney disease30%
- Depression29%
- Diabetes29%
- Anxiety27%
Share of Medicare patients with each condition. A patient can have several.
William McWhirter's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How William S. McWhirter takes part in Medicare
William McWhirter 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)
William S. McWhirter received $110 in industry payments in 2025
CMS Open Payments shows 3 general payments to William McWhirter from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Pacira Pharmaceuticals Incorporated paid the most, $78.
Companies that paid William McWhirter 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 William S. McWhirter'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) |
| 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 William S. McWhirter
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William S. McWhirter's NPI number?
William S. McWhirter's NPI number is 1285345660. It was assigned on December 7, 2022, and it is active in the NPI Registry.
What does William S. McWhirter specialize in?
William S. McWhirter is a nurse anesthetist in Chicago, Illinois. The primary specialty in the NPI Registry is Certified Registered Nurse Anesthetist (taxonomy code 367500000X).
Where does William S. McWhirter practice?
William McWhirter practices at 2900 N Lake Shore Dr, Chicago, IL 60657. William McWhirter's primary practice is Ascension Illinois - Imaging Chicago in Chicago, Illinois.
What is William S. McWhirter's office phone number?
The practice phone on file for William McWhirter is (773) 665-3827.
What is William S. McWhirter's medical license number?
William McWhirter holds Illinois license 209.026960, one of the licenses on file in 2 states.
Which states has William S. McWhirter been licensed in?
Dmand AI has state licenses on file for William McWhirter in Illinois and Missouri.
Which hospitals is William S. McWhirter affiliated with?
William McWhirter is affiliated with Ascension Saint Joseph - Chicago.
What medical group is William S. McWhirter part of?
William McWhirter is linked to Northstar Anesthesia.
Does William S. McWhirter accept Medicare?
Yes. CMS lists William McWhirter as accepting Medicare assignment.
How many Medicare patients does William S. McWhirter see?
CMS counts 137 Medicare patients who saw William McWhirter in 2024, with an average age of 76.
Has William S. McWhirter received payments from drug or device companies?
CMS Open Payments shows $110 in general payments to William McWhirter from 2 companies from 2025 to 2025. The largest total came from Pacira Pharmaceuticals Incorporated.
How long has William S. McWhirter been practicing?
William McWhirter graduated from medical school in 2022, 4 years ago.
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