DR. ZACHARY AARON POUNDERS DO
NPI 1841726965
Internal Medicine - Medical Oncology in Grand Rapids, MI
About Dr. Zachary Aaron Pounders Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ZACHARY AARON POUNDERS DO (NPI 1841726965) is an individual medical oncology provider in Grand Rapids, Michigan, licensed in Michigan (5101025500) and active in the NPI registry since May 2017. He is enrolled in Medicare PECOS, is affiliated with Spectrum Health United Hospital, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 3
Accepted 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. Zachary Aaron Pounders Do 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.
Medicare Billing Reassignments
6Medicare enrollment records show Zachary Pounders reassigns Medicare billing to 6 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
Greenville, MI 48838
- Reassigned Medicare billing, Michigan enrollment
- 242 clinicians in this Medicare group
Grant, MI 49327
- Reassigned Medicare billing, Michigan enrollment
- 180 clinicians in this Medicare group
Hastings, MI 49058
- Reassigned Medicare billing, Michigan enrollment
- 184 clinicians in this Medicare group
Reed City, MI 49677
- Reassigned Medicare billing, Michigan enrollment
- 132 clinicians in this Medicare group
Ludington, MI 49431
- Reassigned Medicare billing, Michigan enrollment
- 168 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.
Areas of Expertise CMS Part B claims 9
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Spectrum Health United Hospital
Acute Care Hospitals · Greenville, MISpectrum Health
Acute Care Hospitals · Grand Rapids, MICorewell Health Reed City Hospital
Critical Access Hospitals · Reed City, MICorewell Health Gerber Hospital
Critical Access Hospitals · Fremont, MICorewell Health Pennock Hospital
Critical Access Hospitals · Hastings, MIPhysician 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Zachary Pounders's NPI number?
The NPI number for Zachary Pounders is 1841726965. It was assigned to this individual provider in the NPPES registry on May 10, 2017.
Where is Zachary Pounders located?
Zachary Pounders practices at 145 Michigan St SE Ste 2200, Grand Rapids, MI 49503. The listed phone number is (616) 486-6700.
What is Zachary Pounders's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Zachary Pounders enrolled in Medicare?
Yes. Zachary Pounders 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 Zachary Pounders's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Pounders reassigns Medicare benefits to 6 organizations: Spectrum Health Primary Care Partners (Grand Rapids, MI), Spectrum Health United (Greenville, MI), Newaygo County General Hospital Association (Grant, MI), Pennock Hospital (Hastings, MI), Reed City Hospital Corporation (Reed City, MI) and 1 more organization, 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 Zachary Pounders's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Zachary Pounders accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Zachary Pounders 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 Zachary Pounders affiliated with any hospitals?
According to CMS data, Zachary Pounders is affiliated with Spectrum Health United Hospital, Spectrum Health, Corewell Health Reed City Hospital, Corewell Health Gerber Hospital and Corewell Health Pennock Hospital.
When was this NPI record last updated?
The NPPES record for Zachary Pounders was last updated on March 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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. Zachary Aaron Pounders, DO · NPI 1841726965
Medical Oncology physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since May 10, 2017.
## Identity
- **NPI:** 1841726965 (Entity type: Individual)
- **Enumerated:** May 10, 2017
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **State license:** 5101025500 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 145 MICHIGAN ST SE STE 2200, Grand Rapids, MI 49503-2562
- **Phone:** (616) 486-6700
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Spectrum Health Primary Care Partners (NPI 1326599671, Grand Rapids, MI); Spectrum Health United (NPI 1538436852, Greenville, MI); Newaygo County General Hospital Association (NPI 1013040492, Grant, MI); Pennock Hospital (NPI 1629494133, Hastings, MI); Reed City Hospital Corporation (NPI 1538239892, Reed City, MI); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** March 17, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1841726965) · Data from the CMS NPPES public registry.