DR. DONNA SIWAI ENG M.D.
NPI 1407024029
Pediatrics - Pediatric Endocrinology in Grand Rapids, MI
About Dr. Donna Siwai Eng M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DONNA SIWAI ENG M.D. (NPI 1407024029) is an individual pediatric endocrinology provider in Grand Rapids, Michigan, licensed in Michigan (4301095849) and active in the NPI registry since February 2008. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Donna Siwai Eng M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Donna Eng reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Kalamazoo, MI 49008
- Reassigned Medicare billing, Michigan enrollment
- 151 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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.
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.
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
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 Donna Eng's NPI number?
The NPI number for Donna Eng is 1407024029. It was assigned to this individual provider in the NPPES registry on February 16, 2008.
Where is Donna Eng located?
Donna Eng practices at 35 Michigan St NE Suite 1800, Grand Rapids, MI 49503. The listed phone number is (616) 391-3933.
What is Donna Eng's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.
Is Donna Eng enrolled in Medicare?
Yes. Donna Eng is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Donna Eng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Donna Eng reassigns Medicare benefits to 2 organizations: Spectrum Health Primary Care Partners (Grand Rapids, MI) and Western Michigan University School Of Medicine (Kalamazoo, 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 Donna Eng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Donna Eng accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Donna Eng 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.
When was this NPI record last updated?
The NPPES record for Donna Eng was last updated on March 5, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Donna Siwai Eng, M.D. · NPI 1407024029
Pediatric Endocrinology physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since February 16, 2008.
## Identity
- **NPI:** 1407024029 (Entity type: Individual)
- **Enumerated:** February 16, 2008
- **Primary specialty:** Pediatrics - Pediatric Endocrinology · taxonomy 2080P0205X
- **State license:** 4301095849 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 35 MICHIGAN ST NE, SUITE 1800, Grand Rapids, MI 49503-2514
- **Phone:** (616) 391-3933
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Spectrum Health Primary Care Partners (NPI 1326599671, Grand Rapids, MI); Western Michigan University School Of Medicine (NPI 1316212343, Kalamazoo, MI) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 5, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1407024029) · Data from the CMS NPPES public registry.