Colleen M. Grandowski, ACNP
- Medicare patients, 2024
- 58
- Part D claims, 2024
- 192
- Hospital affiliations
- 5
- Industry payments
- $21
- Medical groups
- 4
- Practice address
- 301 Madison St, Joliet, IL 60435
- Practice phone
- Call (815) 744-1119
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Surgery Center of Joliet, LLC
Joliet, Illinois
Find Colleen Grandowski'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.
Colleen M. Grandowski is a nurse practitioner in Joliet, Illinois
Colleen Grandowski practices at Surgery Center of Joliet, LLC in Joliet, Illinois.
Colleen Grandowski's NPI, 1265768352, was assigned on October 23, 2009. Colleen Grandowski graduated from Loyola University of Chicago, Stritch School of Medicine in 2009. Colleen Grandowski holds Illinois license 277000793.
- NPI
- 1265768352NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294876439
- NPI enumeration date
- October 23, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 744-1119
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Colleen M. Grandowski practices at Surgery Center of Joliet, LLC in Joliet, Illinois
Colleen Grandowski's primary practice is Surgery Center of Joliet, LLC, at 301 Madison St, Joliet, IL 60435 in Will County. The practice phone is (815) 744-1119.
- Surgery Center of Joliet, LLC301 Madison St, Joliet, IL 60435 · Will CountyPhone(815) 744-1119
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Colleen M. Grandowski is affiliated with 7 sites of care and 4 medical groups
Colleen Grandowski's primary practice is Surgery Center of Joliet, LLC in Joliet, Illinois. Colleen Grandowski is also affiliated with Saint Joseph Medical Center. The medical group on file is Prime Healthcare Illinois Medical Group. Dmand AI also links Colleen Grandowski to 4 more hospitals, 3 medical groups and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Colleen M. Grandowski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Colleen Grandowski practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Surgery Center of Joliet, LLC | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Colleen M. Grandowski is one of 4,254 nurse practitioners in Illinois
Nurse practitioner is Colleen Grandowski's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Colleen Grandowski is licensed in Illinois.
Specialties and state licenses
- Nurse practitioner, IllinoisPrimary
Nurse practitioners near Colleen Grandowski
Counts of nurse practitioners 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
Colleen M. Grandowski treated 58 Medicare patients in 2024, average age 73
CMS counts 58 Medicare patients who saw Colleen Grandowski in 2024. The largest group is 65 to 74, with 24 patients. 75% of them have arthritis, and 75% have high blood pressure. 26% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Colleen Grandowski's median patient age at 61, with 54% women.
Colleen Grandowski's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Colleen Grandowski's Medicare patients by sex, 2024
- Women3357%
- Men2543%
Chronic conditions among Colleen Grandowski's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes34%
- Ischemic heart disease26%
- Mood disorders26%
- Anxiety24%
- Depression24%
Share of Medicare patients with each condition. A patient can have several.
Colleen Grandowski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Colleen M. Grandowski wrote 192 Medicare Part D claims in 2024
In 2024, Colleen Grandowski wrote 192 Medicare Part D claims for 75 patients. 93% of them were for generic drugs.
Colleen Grandowski's Part D claims by kind of drug, 2024
- Generic178 claims93%
- Brand-name and other14 claims7%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Colleen M. Grandowski takes part in Medicare
Colleen Grandowski 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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Colleen M. Grandowski received $21 in industry payments in 2025
CMS Open Payments shows 1 general payment to Colleen Grandowski from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Exact Sciences Corporation paid the most, $21.
Companies that paid Colleen Grandowski the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Colleen M. Grandowski graduated from Loyola University of Chicago, Stritch School of Medicine
Colleen Grandowski graduated from Loyola University of Chicago, Stritch School of Medicine in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Colleen M. Grandowski'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Colleen M. Grandowski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Colleen M. Grandowski's NPI number?
Colleen M. Grandowski's NPI number is 1265768352. It was assigned on October 23, 2009, and it is active in the NPI Registry.
What does Colleen M. Grandowski specialize in?
Colleen M. Grandowski is a nurse practitioner in Joliet, Illinois. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Colleen M. Grandowski practice?
Colleen Grandowski practices at 301 Madison St, Joliet, IL 60435. Colleen Grandowski's primary practice is Surgery Center of Joliet, LLC in Joliet, Illinois. Dmand AI also links Colleen Grandowski to 4 hospitals, 3 medical groups and 1 group practice or clinic.
What is Colleen M. Grandowski's office phone number?
The practice phone on file for Colleen Grandowski is (815) 744-1119.
What is Colleen M. Grandowski's medical license number?
Colleen Grandowski holds Illinois license 277000793.
Which hospitals is Colleen M. Grandowski affiliated with?
Colleen Grandowski is affiliated with Saint Joseph Medical Center. Dmand AI links Colleen Grandowski to 4 more hospitals.
What medical group is Colleen M. Grandowski part of?
Colleen Grandowski is linked to Prime Healthcare Illinois Medical Group. Dmand AI links Colleen Grandowski to 3 more medical groups.
Does Colleen M. Grandowski accept Medicare?
Yes. CMS lists Colleen Grandowski as accepting Medicare assignment.
How many Medicare patients does Colleen M. Grandowski see?
CMS counts 58 Medicare patients who saw Colleen Grandowski in 2024, with an average age of 73.
Where did Colleen M. Grandowski go to medical school?
Colleen Grandowski graduated from Loyola University of Chicago, Stritch School of Medicine in 2009.
Has Colleen M. Grandowski received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Colleen Grandowski from 1 company from 2025 to 2025. The largest total came from Exact Sciences Corporation.
How long has Colleen M. Grandowski been practicing?
Colleen Grandowski graduated from medical school in 2009, 17 years ago.
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