Michael A Okkerse, CRNA
Individual provider Active NPI Certified Registered Nurse Anesthetist · Grand Haven, MI
NPI 1780020115 · NPPES record last updated Aug 31, 2026
Key facts
- NPI
- 1780020115
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Certified Registered Nurse Anesthetist 367500000X
- License
- 4704269904 (MI)
- Practice address
- 15100 Whittaker Way
Grand Haven, MI 49417-8696 - Phone
- (616) 772-4644
- NPI assigned
- May 13, 2013
- Sex
- Male
- Sole proprietor
- No
Organizations & group practices 24
Hospital & facility affiliations 1
Medicare Care Compare profile
- Specialty
- Certified Registered Nurse Anesthetist (Crna)
- Education
- Other, 2013
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Apollo Medical Group of Michigan PLLC
Sparrow Carson Hospital
Practice addresses (Care Compare)
3200 W Centre Ave
Suite 101
Portage, MI 49024-4889
Phone (269) 323-9950
401 E Elm St
Carson City, MI 48811-9693
Phone (989) 584-6217
406 E Elm St
Carson City, MI 48811-0879
Phone (989) 584-6321
406 E Elm St
Carson City, MI 48811-9693
Hospital & facility affiliations
- University of Michigan Health-Sparrow Carson
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled in MI
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20130925000625 | MI | Practitioner - Certified Registered Nurse Anesthetist (Crna) | 9335383728 | Reassigns benefits to 8 organizations |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
- Credentials
- Certified Registered Nurse
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Sparrow Carson Hospital | Current |
Accepting new patients | |
| Sparrow Clinton Hospital | Nurse Anesthetist, Certified Registered | Current |
Accepting new patients |
| Sparrow Clinton Hospital | Current | Accepting new patients | |
| Sparrow Carson Hospital | Current | Accepting new patients | |
| Edward W. Sparrow Hospital Association | Nurse Anesthetist, Certified Registered | Current |
Accepting new patients |
| Emergency Medical Associates, PLLC | Current | Accepting new patients | |
| Edward W Sparrow Hospital Association | Current |
Accepting new patients | |
| Edward W Sparrow Hospital Association | Current | Accepting new patients | |
| Sparrow Carson Hospital | Nurse Anesthetist, Certified Registered | Current |
Accepting new patients |
| Sparrow Ionia Hospital | Nurse Anesthetist, Certified Registered | Current |
Accepting new patients |
| Sparrow Clinton Hospital | Current | Accepting new patients | |
| Sparrow Ionia Hospital | Current |
Accepting new patients | |
| Sparrow Ionia Hospital | Current |
Accepting new patients | |
| Capital Pathology PC | Current | Accepting new patients | |
| Sparrow Clinton Hospital | Current |
Accepting new patients | |
| Apollo Medical Group of Michigan PLLC | Nurse Anesthetist, Certified Registered | Current |
Accepting new patients |
| Sparrow Ionia Hospital | Past | Accepting new patients |
Locations
8175 Reliable Pkwy
Chicago, IL 60686
406 E Elm St
Carson City, MI 48811
Phone (517) 584-3131
3565 S State Rd
Ionia, MI 48846
Phone (616) 523-1355
550 E Washington St
Ionia, MI 48846
Phone (616) 523-1600
1215 E Michigan Ave
Lansing, MI 48912
Phone (517) 336-8080
1707 Lake Lansing Rd
Lansing, MI 48912
Phone (517) 267-0033
3200 W Centre Ave
Ste 101
Portage, MI 49024
Phone (269) 323-9905
901 S Oakland St
Saint Johns, MI 48879
Phone (517) 227-2338
805 S Oakland St
Saint Johns, MI 48879
Phone (989) 224-6881
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Certified Registered Nurse Anesthetist | 367500000X | 4704269904 | MI | Yes |
Addresses
Primary practice location
15100 Whittaker Way
Grand Haven, MI 49417-8696
Mailing address
100 Michigan St NE
MC 845
Grand Rapids, MI 49503-2560
Electronic endpoints
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| FHIR URL | https://epicarr02.spectrumhealth.org/EpicFHIR/api/FHIR/R4/ | ||
| Direct Messaging Address | mokkerse3669453@epic00.corewelldirect.org |
Other providers in Grand Haven, MI
- North Ottawa Orthotics and Prosthetics
- Kayla Norton
- Bridget Nucum
- Kendra Bedient Nyhof
- Hannah H O'Brien
- Jaclyn Oldenburg
- Marilena C Oravitan
- Orthopaedic Associates of Muskegon, PC
- Orthopaedic Associates of Muskegon, PC
- Joseph Daniel Ortiz
All providers in Grand Haven, MI · Certified Registered Nurse Anesthetist in Michigan
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Aug 31, 2026. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.