Katherine Ranee Ritzema, FNP-C
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 100 Michigan St NE, Grand Rapids, MI 49503
- Practice phone
- Call (616) 391-1774
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Katherine Ritzema'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.
Katherine Ranee Ritzema is a family nurse practitioner in Grand Rapids, Michigan
Katherine Ritzema practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health.
Katherine Ritzema's NPI, 1326702754, was assigned on October 22, 2021. Katherine Ritzema holds Michigan license 4704225741.
- NPI
- 1326702754NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648771766
- NPI enumeration date
- October 22, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (616) 391-1774
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Katherine Ranee Ritzema practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan
Katherine Ritzema's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth, at 100 Michigan St NE, Grand Rapids, MI 49503 in Kent County. The practice phone is (616) 391-1774.
- Corewell Health Grand Rapids Hospitals - Butterworth100 Michigan St NE, Grand Rapids, MI 49503 · Kent CountyPhone(616) 391-1774
Source: Dmand AI Affiliation Data
Katherine Ranee Ritzema is affiliated with 2 sites of care and 2 medical groups
Katherine Ritzema's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. The medical group on file is Trinity Health Medical Group. Dmand AI also links Katherine Ritzema to 1 more group practice or clinic 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 Katherine Ranee Ritzema's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Katherine Ritzema practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Grand Rapids Hospitals - Butterworth | Available with a free account |
| +1 more site 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 Corewell Health and 6.2K+ hospitals, with verified contacts in the same login.
Katherine Ranee Ritzema is one of 4,420 family nurse practitioners in Michigan
Family is Katherine Ritzema's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Katherine Ritzema is licensed in Michigan.
Specialties and state licenses
- Family nurse practitioner, MichiganPrimary
Family nurse practitioners near Katherine Ritzema
Counts of family 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
Katherine Ranee Ritzema's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Katherine Ritzema's median patient age at 67, with 11% women.
Katherine Ritzema's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women11%
- Men89%
Source: Dmand AI Patient Panel Data
How Katherine Ranee Ritzema takes part in Medicare
Katherine Ritzema 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)
Sources for Katherine Ranee Ritzema'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 |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Katherine Ranee Ritzema
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What is Katherine Ranee Ritzema's NPI number?
Katherine Ranee Ritzema's NPI number is 1326702754. It was assigned on October 22, 2021, and it is active in the NPI Registry.
What does Katherine Ranee Ritzema specialize in?
Katherine Ranee Ritzema is a family nurse practitioner in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Katherine Ranee Ritzema practice?
Katherine Ritzema practices at 100 Michigan St NE, Grand Rapids, MI 49503. Katherine Ritzema's primary practice is Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan, part of Corewell Health. Dmand AI also links Katherine Ritzema to 1 group practice or clinic and 1 medical group.
What is Katherine Ranee Ritzema's office phone number?
The practice phone on file for Katherine Ritzema is (616) 391-1774.
What is Katherine Ranee Ritzema's medical license number?
Katherine Ritzema holds Michigan license 4704225741.
Which hospitals is Katherine Ranee Ritzema affiliated with?
Katherine Ritzema practices at Corewell Health Grand Rapids Hospitals - Butterworth in Grand Rapids, Michigan.
What medical group is Katherine Ranee Ritzema part of?
Katherine Ritzema is linked to Trinity Health Medical Group. Dmand AI links Katherine Ritzema to 1 more medical group.
Does Katherine Ranee Ritzema accept Medicare?
Yes. CMS lists Katherine Ritzema as accepting Medicare assignment.
How long has Katherine Ranee Ritzema been practicing?
Katherine Ritzema's NPI was assigned in 2021.
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