Kathleen Ritzert, CNP
- Medicare patients, 2024
- 275
- Part D claims, 2024
- 1,127
- Hospital affiliations
- 1
- Industry payments
- $46
- Medical group
- 1
- Practice address
- 2215 Fuller Road, Ann Arbor, MI 48105
- Practice phone
- Call (734) 769-7100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Kathleen Ritzert's professional email, personal email and mobile number
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Kathleen Ritzert is a nurse practitioner in Ann Arbor, Michigan
Kathleen Ritzert practices at Lieutenant Colonel Charles S. Kettles VA Medical Center in Ann Arbor, Michigan, part of Veterans Health Administration.
Kathleen Ritzert's NPI, 1225583362, was assigned on August 18, 2016.
- NPI
- 1225583362NPI Registry (opens in a new tab)
- NPI enumeration date
- August 18, 2016
- NPI status
- Active
- Practice phone
- (734) 769-7100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Kathleen Ritzert practices at Lieutenant Colonel Charles S. Kettles VA Medical Center in Ann Arbor, Michigan
Kathleen Ritzert's primary practice is Lieutenant Colonel Charles S. Kettles VA Medical Center, at 2215 Fuller Road, Ann Arbor, MI 48105 in Washtenaw County. The practice phone is (734) 769-7100.
- Lieutenant Colonel Charles S. Kettles VA Medical Center2215 Fuller Road, Ann Arbor, MI 48105 · Washtenaw CountyPhone(734) 769-7100
Source: Dmand AI Affiliation Data
Kathleen Ritzert is affiliated with 1 site of care and 1 medical group
Kathleen Ritzert's primary practice is Lieutenant Colonel Charles S. Kettles VA Medical Center in Ann Arbor, Michigan, part of Veterans Health Administration. The medical group on file is Trinity Health IHA Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Kathleen Ritzert's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Kathleen Ritzert practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lieutenant Colonel Charles S. Kettles VA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Kathleen Ritzert is one of 2,742 nurse practitioners in Michigan
Nurse practitioner is Kathleen Ritzert's primary specialty in the NPI Registry, under taxonomy code 363L00000X.
Specialties and state licenses
- Nurse practitionerPrimary
Nurse practitioners near Kathleen Ritzert
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
Kathleen Ritzert treated 275 Medicare patients in 2024, average age 77
CMS counts 275 Medicare patients who saw Kathleen Ritzert in 2024. The largest group is 75 to 84, with 114 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.49, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Kathleen Ritzert's median patient age at 55, with 50% women.
Kathleen Ritzert's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Kathleen Ritzert's Medicare patients by sex, 2024
- Women13750%
- Men13850%
Chronic conditions among Kathleen Ritzert's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Atrial fibrillation74%
- Ischemic heart disease55%
- Arthritis47%
- Heart failure45%
- Chronic kidney disease40%
- Diabetes32%
Share of Medicare patients with each condition. A patient can have several.
Kathleen Ritzert's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Kathleen Ritzert wrote 1,127 Medicare Part D claims in 2024
In 2024, Kathleen Ritzert wrote 1,127 Medicare Part D claims for 370 patients. 75% of them were for generic drugs.
Kathleen Ritzert's Part D claims by kind of drug, 2024
- Generic842 claims75%
- Brand-name285 claims25%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Kathleen Ritzert received $46 in industry payments in 2025
CMS Open Payments shows 2 general payments to Kathleen Ritzert from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Biotronik Inc. paid the most, $46.
Companies that paid Kathleen Ritzert 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 Kathleen Ritzert'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) |
| 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 Kathleen Ritzert
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Kathleen Ritzert's NPI number?
Kathleen Ritzert's NPI number is 1225583362. It was assigned on August 18, 2016, and it is active in the NPI Registry.
What does Kathleen Ritzert specialize in?
Kathleen Ritzert is a nurse practitioner in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Kathleen Ritzert practice?
Kathleen Ritzert practices at 2215 Fuller Road, Ann Arbor, MI 48105. Kathleen Ritzert's primary practice is Lieutenant Colonel Charles S. Kettles VA Medical Center in Ann Arbor, Michigan, part of Veterans Health Administration.
What is Kathleen Ritzert's office phone number?
The practice phone on file for Kathleen Ritzert is (734) 769-7100.
Which hospitals is Kathleen Ritzert affiliated with?
Kathleen Ritzert practices at Lieutenant Colonel Charles S. Kettles VA Medical Center in Ann Arbor, Michigan.
What medical group is Kathleen Ritzert part of?
Kathleen Ritzert is linked to Trinity Health IHA Medical Group.
How many Medicare patients does Kathleen Ritzert see?
CMS counts 275 Medicare patients who saw Kathleen Ritzert in 2024, with an average age of 77.
Has Kathleen Ritzert received payments from drug or device companies?
CMS Open Payments shows $46 in general payments to Kathleen Ritzert from 1 company from 2025 to 2025. The largest total came from Biotronik Inc.
How long has Kathleen Ritzert been practicing?
Kathleen Ritzert graduated from medical school in 2016, 10 years ago.
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