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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MICHAEL A OKKERSE CRNA
NPI 1780020115
Nurse Anesthetist, Certified Registered in Grand Haven, MI

Active since May 13, 2013Accepts Medicare Assignment
15100 WHITTAKER WAY, GRAND HAVEN, MI 49417(616) 772-4644 Get Directions Write a Review

NPPES record last updated: August 31, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Michael A Okkerse Crna NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MICHAEL A OKKERSE CRNA (NPI 1780020115) is an individual nurse anesthetist, certified registered in Grand Haven, Michigan, licensed in Michigan (4704269904) and active in the NPI registry since May 2013. He is affiliated with Sparrow Carson Hospital and is a graduate of Other (2013).

NPPES Registry Identity

NPI1780020115
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameMICHAEL A OKKERSECredential: CRNA
Location Address15100 WHITTAKER WAYGrand Haven, MI 49417-8696
Mailing Address100 Michigan St Ne, Mc 845Grand Rapids, MI 49503-2560
Phone(616) 772-4644
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateMay 13, 2013
Last NPPES UpdateAugust 31, 2026
NPPES CertifiedAugust 31, 2026
✔ NPI 1780020115 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in MI · 4704269904
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
15100 WHITTAKER WAY, Grand Haven, MI 49417
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Michael A Okkerse Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9335383728
PECOS Enrollment IDI20130925000625

Medicare Billing Reassignments

7

Medicare enrollment records show Michael Okkerse reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Spectrum Health Primary Care Partners
17 mi
Physical Therapist
2009 HOLTON ROAD
Muskegon, MI 49445
  • Reassigned Medicare billing, Michigan enrollment
  • 2,446 clinicians in this Medicare group
NPI 1386194538 (616) 486-6790
Sparrow Carson Hospital
49 mi
Rural Health
1014 E WASHINGTON ST
Greenville, MI 48838
  • Reassigned Medicare billing, Michigan enrollment
  • 215 clinicians in this Medicare group
NPI 1689644403 (616) 754-7145
Sparrow Ionia Hospital
58 mi
Family Medicine
550 E WASHINGTON ST FL 2
Ionia, MI 48846
  • Reassigned Medicare billing, Michigan enrollment
  • Also billed through NPI 1700820065 (Michigan)
  • 317 clinicians in this Medicare group
NPI 1033271143 (616) 523-1600
Apollo Medical Group Of Michigan PLLC
66 mi
Anesthesiology
3200 W CENTRE AVE STE 101
Portage, MI 49024
  • Reassigned Medicare billing, Michigan enrollment
  • 36 clinicians in this Medicare group
NPI 1699582593 (269) 323-9905
Sparrow Clinton Hospital
84 mi
Critical Access
805 S OAKLAND ST
Saint Johns, MI 48879
  • Reassigned Medicare billing, Michigan enrollment
  • Also billed through NPI 1326138173 (Michigan)
  • 116 clinicians in this Medicare group
NPI 1093809824 (989) 224-6881
Edward W Sparrow Hospital Association
88 mi
Obstetrics & Gynecology
1540 LAKE LANSING RD, SUITE 205
Lansing, MI 48912
  • Reassigned Medicare billing, Michigan enrollment
  • 265 clinicians in this Medicare group
NPI 1033513148 (517) 913-3910
Pinnacle Anesthesia PLLC
169 mi
Anesthesiology
48801 ROMEO PLANK RD STE 101
Macomb, MI 48044
  • Reassigned Medicare billing, Michigan enrollment
  • 61 clinicians in this Medicare group
NPI 1295301133 (586) 726-8487

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
16 services15 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Sparrow Carson Hospital

Acute Care Hospitals · Carson City, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230208
Location406 East Elm StCarson City, MI 48811 · Montcalm County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49417 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.15 typical visit price
range $54.34 – $166.68
Typical copayment $31.53 (range $13.58 – $41.67)
Most-billed visit code 99204
Established Patient
$68.07 typical visit price
range $17.09 – $135.40
Typical copayment $17.01 (range $4.27 – $33.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KELLY LYNN OUELLETTE OT
Occupational Therapist
15100 WHITTAKER WAY
GRAND HAVEN, MI 49417
Ottawa County (616) 935-6280
LINDSAY FOX MD
Pediatrics
15100 WHITTAKER WAY
GRAND HAVEN, MI 49417
Ottawa County (616) 935-6300
CHRISTOPHER JASE ROGALLA DO
Family Medicine
15100 WHITTAKER WAY
GRAND HAVEN, MI 49417
Ottawa County (616) 935-6320
KELSI HENDRICKSON PA
Physician Assistant
15100 WHITTAKER WAY
GRAND HAVEN, MI 49417
Ottawa County (616) 935-6210
SYDNE WILLIAMS PA-C
Physician Assistant
15100 WHITTAKER WAY
GRAND HAVEN, MI 49417
Ottawa County (616) 935-6210
LOGAN WALKER DO
Internal Medicine
15100 WHITTAKER WAY
GRAND HAVEN, MI 49417
Ottawa County (616) 935-6320
HANNAH CLAIRE MATHIOT LMSW
Social Worker
15100 WHITTAKER WAY
GRAND HAVEN, MI 49417
Ottawa County (616) 935-6300
KRISTA DELONG PA-C
Physician Assistant (Medical)
15100 WHITTAKER WAY
GRAND HAVEN, MI 49417
Ottawa County (616) 935-6300

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michael Okkerse's NPI number?

The NPI number for Michael Okkerse is 1780020115. It was assigned to this individual provider in the NPPES registry on May 13, 2013.

Where is Michael Okkerse located?

Michael Okkerse practices at 15100 Whittaker Way, Grand Haven, MI 49417. The listed phone number is (616) 772-4644.

What is Michael Okkerse's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Michael Okkerse enrolled in Medicare?

Yes. Michael Okkerse is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Michael Okkerse's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Okkerse reassigns Medicare benefits to 7 organizations: Spectrum Health Primary Care Partners (Muskegon, MI), Sparrow Carson Hospital (Greenville, MI), Sparrow Ionia Hospital (Ionia, MI), Apollo Medical Group Of Michigan PLLC (Portage, MI), Sparrow Clinton Hospital (Saint Johns, MI) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Okkerse's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Okkerse accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Michael Okkerse as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Michael Okkerse affiliated with any hospitals?

According to CMS data, Michael Okkerse is affiliated with Sparrow Carson Hospital.

When was this NPI record last updated?

The NPPES record for Michael Okkerse was last updated on August 31, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.