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DR. MICHAEL SHAWN WERKEMA M.D.
NPI 1093833451
Obstetrics & Gynecology in Grand Rapids, MI

Active since March 26, 2007PECOS EnrolledAccepts Medicare Assignment
221 MICHIGAN ST NE STE 600, GRAND RAPIDS, MI 49503(616) 774-7035 Get Directions Write a Review

NPPES record last updated: June 24, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 24, 2024, Jul 24, 2019, Feb 22, 2019 (3 updates tracked since 2019).

About Dr. Michael Shawn Werkema M.d. NPPES

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

DR. MICHAEL SHAWN WERKEMA M.D. (NPI 1093833451) is an individual obstetrics & gynecology provider in Grand Rapids, Michigan, licensed in Michigan (4301081890) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and is a graduate of Wayne State University School Of Medicine (2003).

NPPES Registry Identity

NPI1093833451
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. MICHAEL SHAWN WERKEMACredential: M.D.
Location Address221 MICHIGAN ST NE STE 600Grand Rapids, MI 49503-2540
Mailing Address100 Michigan St Ne # Mc845Grand Rapids, MI 49503-2560
Phone(616) 774-7035
Sole ProprietorNo
Medical School CMSWayne State University School Of MedicineGraduated 2003
Enumeration DateMarch 26, 2007
Last NPPES UpdateJune 24, 20243 updates tracked since enumeration
NPPES CertifiedJune 24, 2024
✔ NPI 1093833451 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in MI · 4301081890
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
221 MICHIGAN ST NE STE 600, Grand Rapids, MI 49503
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.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

Dr. Michael Shawn Werkema M.d. 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 ID7517058910
PECOS Enrollment IDI20070814000102
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Michael Werkema reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Spectrum Health Primary Care Partners
0.1 mi
Internal Medicine
100 MICHIGAN ST NE
Grand Rapids, MI 49503
  • Reassigned Medicare billing, Michigan enrollment
  • 2,446 clinicians in this Medicare group
NPI 1689499667 (616) 486-6790
Spectrum Health Hospitals
0.1 mi
Hospitalist
100 MICHIGAN ST NE, MC-907
Grand Rapids, MI 49503
  • Reassigned Medicare billing, Michigan enrollment
  • 405 clinicians in this Medicare group
NPI 1558407189 (616) 774-7377

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

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
21 services14 patients

Hospital Affiliations CMS Care Compare

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

Spectrum Health

Acute Care Hospitals · Grand Rapids, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230038
Location100 Michigan St NEGrand Rapids, MI 49503 · Kent County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49503 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.

TISHANNA N FERGUSON MD
Obstetrics & Gynecology
221 MICHIGAN ST NE STE 600
GRAND RAPIDS, MI 49503
Kent County (616) 774-7035
DR. BRITTANY ANN MERRIFIELD MD
Obstetrics & Gynecology
221 MICHIGAN ST NE STE 600
GRAND RAPIDS, MI 49503
Kent County (616) 774-7035
MADELINE ROSS MD
Obstetrics & Gynecology
221 MICHIGAN ST NE STE 600
GRAND RAPIDS, MI 49503
Kent County (616) 267-5410
KATHERINE MARY O'ROURKE MD
Obstetrics & Gynecology
221 MICHIGAN ST NE STE 600
GRAND RAPIDS, MI 49503
Kent County (616) 774-7035
DR. ADRIENNE NOELLE BROWN M.D.
Obstetrics & Gynecology
221 MICHIGAN ST NE STE 600
GRAND RAPIDS, MI 49503
Kent County (616) 774-7035
MS. KATHLEEN MARY HASCHER FNP-BC
Nurse Practitioner (Family)
221 MICHIGAN ST NE STE 600
GRAND RAPIDS, MI 49503
Kent County (616) 774-7035
ELIZABETH JELINEK WHITE DO
Obstetrics & Gynecology
221 MICHIGAN ST NE STE 600
GRAND RAPIDS, MI 49503
Kent County (616) 774-7035
DR. AMANDA MARIE MEULENBERG MD
Obstetrics & Gynecology
221 MICHIGAN ST NE STE 600
GRAND RAPIDS, MI 49503
Kent County (616) 774-7035

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 Werkema's NPI number?

The NPI number for Michael Werkema is 1093833451. It was assigned to this individual provider in the NPPES registry on March 26, 2007.

Where is Michael Werkema located?

Michael Werkema practices at 221 Michigan St NE Ste 600, Grand Rapids, MI 49503. The listed phone number is (616) 774-7035.

What is Michael Werkema's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Michael Werkema enrolled in Medicare?

Yes. Michael Werkema 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 Werkema's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Werkema reassigns Medicare benefits to 2 organizations: Spectrum Health Primary Care Partners (Grand Rapids, MI) and Spectrum Health Hospitals (Grand Rapids, MI). 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 Werkema's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Werkema accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Priority Health list Michael Werkema 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 Werkema affiliated with any hospitals?

According to CMS data, Michael Werkema is affiliated with Spectrum Health.

When was this NPI record last updated?

The NPPES record for Michael Werkema was last updated on June 24, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.