Lillie Cook
- Part D claims, 2024
- 156
- Hospital affiliations
- 3
- Industry payments
- $237
- Medical groups
- 2
- State license
- 1
- Practice address
- 331 W. Surf Street, Chicago, IL 60657
- Practice phone
- Call (815) 236-7887
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascension St. Joseph Surgery Center MSK
Surgery Center - Medicare-Certified · Chicago, Illinois
Find Lillie Cook'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.
Lillie Cook is a physician assistant in Chicago, Illinois
Lillie Cook practices at Ascension St. Joseph Surgery Center MSK in Chicago, Illinois.
Lillie Cook's NPI, 1205583085, was assigned on March 2, 2022. Lillie Cook holds Illinois license 085009578.
- NPI
- 1205583085NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9335649722
- NPI enumeration date
- March 2, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (815) 236-7887
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Lillie Cook practices at Ascension St. Joseph Surgery Center MSK in Chicago, Illinois
Lillie Cook's primary practice is Ascension St. Joseph Surgery Center MSK, at 331 W. Surf Street, Chicago, IL 60657. The practice phone is (815) 236-7887.
- Ascension St. Joseph Surgery Center MSK331 W. Surf Street, Chicago, IL 60657Phone(815) 236-7887
Source: Dmand AI Affiliation Data
Lillie Cook is affiliated with 4 sites of care and 2 medical groups
Lillie Cook's primary practice is Ascension St. Joseph Surgery Center MSK in Chicago, Illinois. Lillie Cook is also affiliated with Resurrection Medical Center. The medical group on file is GI Alliance of Illinois. Dmand AI also links Lillie Cook to 2 more hospitals and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Lillie Cook's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Lillie Cook practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension St. Joseph Surgery Center MSK | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Lillie Cook is one of 4,299 physician assistants in Illinois
Physician assistant is Lillie Cook's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Lillie Cook is licensed in Illinois.
Specialties and state licenses
- Physician assistant, IllinoisPrimary
Physician assistants near Lillie Cook
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
Lillie Cook's patients have a median age of 54
Across all payers, Dmand AI patient panel data puts Lillie Cook's median patient age at 54, with 51% women.
Lillie Cook's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women51%
- Men48%
Source: Dmand AI Patient Panel Data
Lillie Cook wrote 156 Medicare Part D claims in 2024
In 2024, Lillie Cook wrote 156 Medicare Part D claims for 71 patients. 92% of them were for generic drugs.
Lillie Cook's Part D claims by kind of drug, 2024
- Generic144 claims92%
- Brand-name12 claims8%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Lillie Cook offers telehealth to Medicare patients
Lillie Cook accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Lillie Cook as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Lillie Cook received $237 in industry payments in 2025
CMS Open Payments shows 8 general payments to Lillie Cook from 5 drug and device companies in 2025. Food and beverage make up the largest share, 67% of the total. Janssen Pharmaceuticals, Inc paid the most, $95.
General payments to Lillie Cook by kind, 2025 to 2025
- Food and beverage$15867%
- Education$7933%
Companies that paid Lillie Cook 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 Lillie Cook'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 Data |
| 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 Lillie Cook
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Lillie Cook's NPI number?
Lillie Cook's NPI number is 1205583085. It was assigned on March 2, 2022, and it is active in the NPI Registry.
What does Lillie Cook specialize in?
Lillie Cook is a physician assistant in Chicago, Illinois. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Lillie Cook practice?
Lillie Cook practices at 331 W. Surf Street, Chicago, IL 60657. Lillie Cook's primary practice is Ascension St. Joseph Surgery Center MSK in Chicago, Illinois. Dmand AI also links Lillie Cook to 2 hospitals and 1 medical group.
What is Lillie Cook's office phone number?
The practice phone on file for Lillie Cook is (815) 236-7887.
What is Lillie Cook's medical license number?
Lillie Cook holds Illinois license 085009578.
Which hospitals is Lillie Cook affiliated with?
Lillie Cook is affiliated with Resurrection Medical Center. Dmand AI links Lillie Cook to 2 more hospitals.
What medical group is Lillie Cook part of?
Lillie Cook is linked to GI Alliance of Illinois. Dmand AI links Lillie Cook to 1 more medical group.
Does Lillie Cook accept Medicare?
Yes. CMS lists Lillie Cook as accepting Medicare assignment.
Does Lillie Cook offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Lillie Cook as offering telehealth services.
Has Lillie Cook received payments from drug or device companies?
CMS Open Payments shows $237 in general payments to Lillie Cook from 5 companies from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Lillie Cook been practicing?
Lillie Cook graduated from medical school in 2021, 5 years ago.
Selling to physician assistant practices?
See physician assistants in Illinois by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card