NPIMap

Individual provider Active NPI

Zachary Aaron Pounders, DO

  • Medical Oncology Physician
  • Grand Rapids, MI
National Provider Identifier
1841726965
Registry record updated Mar 17, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
5101025500 Issued in MI
Practice address
145 Michigan St SE Ste 2200
Grand Rapids, MI 49503-2562
Phone
(616) 486-6700
NPI assigned
May 10, 2017
Last updated
Mar 17, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 17, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 51010225500 MI
Hematology & Oncology Physician 207RH0003X 5101025500 MI
Medical Oncology Physician 207RX0202X 5101025500 MI Primary

Addresses

Primary practice location

145 Michigan St SE Ste 2200
Grand Rapids, MI 49503-2562

Mailing address

100 Michigan St NE # Mc845
Grand Rapids, MI 49503-2560

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address zpounders1445168@epic00.shdirect.org
FHIR URL https://epicarr02.spectrumhealth.org/EpicFHIR/api/FHIR/R4/

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20230808000549 MI Practitioner - Hematology 5890063887 Reassigns benefits to 6 organizations

Care Compare profile

Medicare Care Compare
Specialty
Hematology
Education
Other, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Reed City Hospital CorporationGroup PAC ID 6406740695, 32 clinicians

Practice addresses (Care Compare)

1 Atkinson Dr
Ludington, MI 49431-1906
Phone (231) 843-2591

100 Michigan Ave NE
Grand Rapids, MI 49503-2560

100 Michigan St NE RM
280 Corewell Health Medical Group West
Grand Rapids, MI 49503-2560
Phone (616) 267-0115

1009 W Green St
Corewell Health Medical Group West
Hastings, MI 49058-1710
Phone (269) 945-1212

145 Michigan St NE
5500 Corewell Health Medical Group West
Grand Rapids, MI 49503-2565
Phone (616) 267-8540

1840 Wealthy St SE
Corewell Health Medical Group West
Grand Rapids, MI 49506-2921
Phone (616) 885-5000

212 S Sullivan Ave
Corewell Health Gerber Hospital
Fremont, MI 49412-1548
Phone (231) 924-1212

230 W Oak St
Corewell Health Gerber Hospital
Fremont, MI 49412-1526
Phone (231) 924-4200

300 N Patterson Rd
Corewell Health Reed City Hospital
Reed City, MI 49677-8041
Phone (231) 832-7170

4444 Kalamazoo Ave SE
200 Corewell Health Medical Group West
Kentwood, MI 49508-4600
Phone (616) 391-5600

4499 220TH Ave
Reed City, MI 49677-8593
Phone (231) 832-5817

5 Atkinson Dr
302 Corewell Health Medical Group West
Ludington, MI 49431-1906
Phone (616) 267-8700

615 S Bower St
Greenville, MI 48838-2614
Phone (616) 225-6522

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

State licenses

LicenseStateTypeSpecialty
51010225500MIMDInternal Medicine Physician
5101025500MIMDHematology & Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Spectrum Health United CurrentSince Aug 28, 2023 Accepting new patients
Newaygo County General Hospital Association CurrentSince Aug 28, 2023 Accepting new patients
Memorial Medical Center of West Michigan CurrentSince Aug 28, 2023 Accepting new patients
Spectrum Health Primary Care Partners Internal Medicine CurrentSince Aug 28, 2023 Accepting new patients
Reed City Hospital Corporation CurrentSince Aug 28, 2023 Accepting new patients
Spectrum Health United CurrentSince Aug 28, 2023 Accepting new patients
Pennock Hospital Internal Medicine CurrentSince Aug 28, 2023 Accepting new patients
Spectrum Health Primary Care Partners Internal Medicine CurrentSince Aug 28, 2023 Accepting new patients
Newaygo County General Hospital Association Internal Medicine CurrentSince Aug 28, 2023 Accepting new patients
Pennock Hospital Internal Medicine CurrentSince Aug 28, 2023 Accepting new patients
Reed City Hospital Corporation CurrentSince Aug 28, 2023 Accepting new patients
Memorial Medical Center of West Michigan CurrentSince Aug 28, 2023 Accepting new patients

Locations

1227 W State St
Belding, MI 48809
Phone (616) 794-0800

212 S Sullivan Ave
Fremont, MI 49412
Phone (231) 924-1212

100 Michigan St NE
#845
Grand Rapids, MI 49503
Phone (616) 391-8242

1005 W Green St
Ste 300
Hastings, MI 49058
Phone (269) 948-8411

4444 Kalamazoo Ave SE
Ste 200
Kentwood, MI 49508
Phone (616) 391-5600

1 Atkinson Dr
Ludington, MI 49431
Phone (231) 843-2591

300 N Patterson Rd
Reed City, MI 49677
Phone (231) 832-3271

Interoperability endpoints

  • Direct secure messaging: zpounders1445168@epic00.corewelldirect.org
  • Direct secure messaging: zpounders1445168@epic00.shdirect.org

Organizations & group practices 12

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1494374400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773705600000",
    "number": "1841726965",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 MICHIGAN ST NE # MC845",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495032560"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "145 MICHIGAN ST SE STE 2200",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495032562",
            "telephone_number": "616-486-6700"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "POUNDERS",
        "first_name": "ZACHARY",
        "middle_name": "AARON",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-05-10",
        "last_updated": "2026-03-17",
        "certification_date": "2026-03-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "51010225500",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "MI",
            "license": "5101025500",
            "primary": false
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "MI",
            "license": "5101025500",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "zpounders1445168@epic00.shdirect.org",
            "affiliation": "N",
            "address_1": "145 Michigan St SE",
            "address_2": "Suite 5200",
            "city": "Grand Rapids",
            "state": "MI",
            "country_code": "US",
            "postal_code": "495032565",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicarr02.spectrumhealth.org/EpicFHIR/api/FHIR/R4/",
            "affiliation": "N",
            "address_1": "145 Michigan St SE",
            "address_2": "Suite 5200",
            "city": "Grand Rapids",
            "state": "MI",
            "country_code": "US",
            "postal_code": "495032565",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Grand Rapids, MI

Sources for this page

Verify at the official NPI Registry.