Active NPI
Caitlin Elizabeth Groeneveld, NP
- Pediatric Nurse Practitioner
- Grand Rapids, MI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatric Nurse Practitioner
- License
- 4704267568
- Practice address
- 25 Michigan St NE Ste 2100
Grand Rapids, MI 49503-2526 - Phone
- (616) 267-2500
- Fax
- (616) 267-2501
- NPI assigned
- May 30, 2013
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Pediatric Nurse Practitioner | 363LP0200X | 4704267568 | MI | Primary |
| Primary Care Nurse Practitioner | 363LP2300X | 4704267568 | MI |
Addresses
Primary practice location
25 Michigan St NE Ste 2100
Grand Rapids, MI 49503-2526
Mailing address
100 Michigan St NE # Mc845
Grand Rapids, MI 49503-2560
Other names 1
- Miss Caitlin Elizabeth Martzke
Electronic endpoints 2
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| FHIR URL | https://epicarr02.spectrumhealth.org/EpicFHIR/api/FHIR/DSTU2/ | ||
| Direct Messaging Address | cgroeneveld203909@epic00.shdirect.org |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: No
- Medical equipment: Yes
- Home health: No
- Power mobility devices: Yes
- Hospice: No
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Nurse Practitioner
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Spectrum Health Primary Care Partners | Current | Accepting new patients | |
| Spectrum Health Primary Care Partners | Current | Accepting new patients |
Locations
25 Michigan St NE
Ste 2100
Grand Rapids, MI 49503
Phone (616) 391-3777
35 Michigan St NE
Ste 3003
Grand Rapids, MI 49503
Phone (616) 267-2200
235 Wealthy St SE
Ste 100
Grand Rapids, MI 49503
Phone (616) 493-9724
100 Michigan St NE
#845
Grand Rapids, MI 49503
Phone (616) 391-8242
235 Wealthy St SE
Grand Rapids, MI 49503
Phone (616) 242-0422
4444 Kalamazoo Ave SE
Ste 200
Kentwood, MI 49508
Phone (616) 391-5600
Interoperability endpoints
- cgroeneveld203909@epic00.corewelldirect.org
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Internal Medicine Physician
- Grand Rapids, MI
- NPI 1235188673
-
- Internal Medicine Physician
- Grand Rapids, MI
- NPI 1689499667
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1369872000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1784246400000",
"number": "1154768224",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "100 MICHIGAN ST NE # MC845",
"city": "GRAND RAPIDS",
"state": "MI",
"postal_code": "495032560"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "25 MICHIGAN ST NE STE 2100",
"city": "GRAND RAPIDS",
"state": "MI",
"postal_code": "495032526",
"telephone_number": "616-267-2500",
"fax_number": "616-267-2501"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GROENEVELD",
"first_name": "CAITLIN",
"middle_name": "ELIZABETH",
"name_prefix": "Mrs.",
"credential": "NP",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2013-05-30",
"last_updated": "2026-07-17",
"certification_date": "2026-07-17",
"status": "A"
},
"taxonomies": [
{
"code": "363LP0200X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Pediatrics",
"state": "MI",
"license": "4704267568",
"primary": true
},
{
"code": "363LP2300X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Primary Care",
"state": "MI",
"license": "4704267568",
"primary": false
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "FHIR",
"endpointTypeDescription": "FHIR URL",
"endpoint": "https://epicarr02.spectrumhealth.org/EpicFHIR/api/FHIR/DSTU2/",
"affiliation": "N",
"address_1": "35 Michigan St NE Ste 3003",
"city": "Grand Rapids",
"state": "MI",
"country_code": "US",
"postal_code": "495032528",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "cgroeneveld203909@epic00.shdirect.org",
"affiliation": "N",
"address_1": "35 Michigan St NE Ste 3003",
"city": "Grand Rapids",
"state": "MI",
"country_code": "US",
"postal_code": "495032528",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": [
{
"first_name": "CAITLIN",
"last_name": "MARTZKE",
"middle_name": "ELIZABETH",
"prefix": "MISS",
"code": "1",
"type": "Former Name"
}
]
}
Other providers in Grand Rapids, MI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 17, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.