Cassie Thiesse, FNP-C
- Medicare patients, 2024
- 199
- Part D claims, 2024
- 392
- Hospital affiliations
- 2
- Industry payments
- $40
- Medical groups
- 2
- Practice address
- 1234 Napier Avenue, Saint Joseph, MI 49085
- Practice phone
- Call (269) 983-8300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Cassie Thiesse'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.
Cassie Thiesse is a nurse practitioner in Saint Joseph, Michigan
Cassie Thiesse practices at Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan, part of Corewell Health.
Cassie Thiesse's NPI, 1316699119, was assigned on January 22, 2022. Cassie Thiesse holds Michigan license 4704326088.
- NPI
- 1316699119NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668816000
- NPI enumeration date
- January 22, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (269) 983-8300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- 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)
Cassie Thiesse practices at Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan
Cassie Thiesse's primary practice is Corewell Health Lakeland Hospitals - Saint Joseph Hospital, at 1234 Napier Avenue, Saint Joseph, MI 49085 in Berrien County. The practice phone is (269) 983-8300.
- Corewell Health Lakeland Hospitals - Saint Joseph Hospital1234 Napier Avenue, Saint Joseph, MI 49085 · Berrien CountyPhone(269) 983-8300
Source: Dmand AI Affiliation Data
Cassie Thiesse is affiliated with 2 sites of care and 2 medical groups
Cassie Thiesse's primary practice is Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan, part of Corewell Health. Cassie Thiesse is also affiliated with Corewell Health Watervliet Hospital. The medical group on file is Corewell Health Medical Group South. Dmand AI also links Cassie Thiesse to 1 more medical group, named with a free account. Cassie Thiesse's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Cassie Thiesse's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Cassie Thiesse practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Lakeland Hospitals - Saint Joseph Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Cassie Thiesse is one of 2,742 nurse practitioners in Michigan
Nurse practitioner is Cassie Thiesse's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Cassie Thiesse is licensed in Michigan.
Specialties and state licenses
- Nurse practitioner, MichiganPrimary
Nurse practitioners near Cassie Thiesse
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
Cassie Thiesse treated 199 Medicare patients in 2024, average age 77
CMS counts 199 Medicare patients who saw Cassie Thiesse in 2024. The largest group is 75 to 84, with 73 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Cassie Thiesse's median patient age at 68, with 27% women.
Cassie Thiesse's Medicare patients by age, 2024
Cassie Thiesse's Medicare patients by sex, 2024
- Women7035%
- Men12965%
Chronic conditions among Cassie Thiesse's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Chronic kidney disease44%
- Ischemic heart disease35%
- Diabetes34%
- Cancer28%
- Anxiety27%
Share of Medicare patients with each condition. A patient can have several.
Cassie Thiesse'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
- Women27%
- Men72%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Cassie Thiesse wrote 392 Medicare Part D claims in 2024
In 2024, Cassie Thiesse wrote 392 Medicare Part D claims for 202 patients. 91% of them were for generic drugs.
Cassie Thiesse's Part D claims by kind of drug, 2024
- Generic358 claims91%
- Brand-name and other34 claims9%
Drug classes CMS tracks in Cassie Thiesse's Part D claims, 2024
- Antibiotics26%101 of 392 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 Cassie Thiesse takes part in Medicare
Cassie Thiesse 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)
For MedTech and pharma teams
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Cassie Thiesse received $40 in industry payments in 2025
CMS Open Payments shows 2 general payments to Cassie Thiesse from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Ferring Pharmaceuticals Inc. paid the most, $21.
Companies that paid Cassie Thiesse 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 Cassie Thiesse'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 Cassie Thiesse
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Cassie Thiesse's NPI number?
Cassie Thiesse's NPI number is 1316699119. It was assigned on January 22, 2022, and it is active in the NPI Registry.
What does Cassie Thiesse specialize in?
Cassie Thiesse is a nurse practitioner in Saint Joseph, Michigan. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Cassie Thiesse practice?
Cassie Thiesse practices at 1234 Napier Avenue, Saint Joseph, MI 49085. Cassie Thiesse's primary practice is Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan, part of Corewell Health. Dmand AI also links Cassie Thiesse to 1 medical group.
What is Cassie Thiesse's office phone number?
The practice phone on file for Cassie Thiesse is (269) 983-8300.
What is Cassie Thiesse's medical license number?
Cassie Thiesse holds Michigan license 4704326088.
Which hospitals is Cassie Thiesse affiliated with?
Cassie Thiesse practices at Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan. Cassie Thiesse is also affiliated with Corewell Health Watervliet Hospital.
What medical group is Cassie Thiesse part of?
Cassie Thiesse is linked to Corewell Health Medical Group South. Dmand AI links Cassie Thiesse to 1 more medical group.
Does Cassie Thiesse accept Medicare?
Yes. CMS lists Cassie Thiesse as accepting Medicare assignment.
How many Medicare patients does Cassie Thiesse see?
CMS counts 199 Medicare patients who saw Cassie Thiesse in 2024, with an average age of 77.
Has Cassie Thiesse received payments from drug or device companies?
CMS Open Payments shows $40 in general payments to Cassie Thiesse from 2 companies from 2025 to 2025. The largest total came from Ferring Pharmaceuticals Inc.
How long has Cassie Thiesse been practicing?
Cassie Thiesse graduated from medical school in 2022, 4 years ago.
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