NPIMap

Individual provider Active NPI

Casey Levi Sietsema, P.A.

  • Physician Assistant
  • Zeeland, MI
National Provider Identifier
1689000903
Registry record updated Jan 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA10697 Issued in TX
Practice address
8666 Maple LN
Zeeland, MI 49464-9157
Phone
(616) 283-8785
NPI assigned
Sep 18, 2013
Last updated
Jan 16, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 16, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Physician Assistant 363AM0700X 5601006819 MI
Physician Assistant 363A00000X PA10697 TX Primary

Addresses

Primary practice location

8666 Maple LN
Zeeland, MI 49464-9157

Mailing address

8666 Maple LN
Zeeland, MI 49464-9157
Phone (616) 283-8785

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI, TX2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20140107000771 MI Practitioner - Physician Assistant 1951539428 Reassigns benefits to 2 organizations
I20171113002363 TX Practitioner - Physician Assistant 1951539428 Reassigns benefits to 6 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Fast Track Urgent CareGroup PAC ID 5799005070, 41 clinicians

Practice addresses (Care Compare)

17910 Bulverde Rd
Suite 115
San Antonio, TX 78259-3762
Phone (210) 906-8478

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
PA10697TXMDPhysician Assistant
5601006819MIMDMedical Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Ascension Borgess Hospital CurrentSince Oct 1, 2016 Accepting new patients
Beacon Kalamazoo Inc CurrentSince Oct 1, 2016 Accepting new patients
Sterling Ridge Orthopaedics and Sports Medicine, LLC CurrentSince Mar 19, 2018 Accepting new patients
CLS Regen, PLLC Current Accepting new patients
Fast Track Urgent Care - Dripping Springs Physician Assistant Current Accepting new patients
Fast Track Urgent Care Physician Assistant CurrentSince Sep 23, 2025 Accepting new patients
Fast Track Urgent Care - Bastrop Physician Assistant CurrentSince Sep 23, 2025 Accepting new patients
Camino Real Emergency Physicians PLLC Physician Assistant Past Accepting new patients
Emergency Health Partners-Lakeshore, PLC Past Accepting new patients
Emergency Health Partners Muskegon Past Accepting new patients

Locations

1521 Gull Rd
Kalamazoo, MI 49048
Phone (269) 226-5165

136 Drifting Wind Run
Ste 117
Dripping Springs, TX 78620
Phone (210) 906-8478

17910 Bulverde Rd
Ste 115
San Antonio, TX 78259
Phone (210) 906-8478

20639 Kuykendahl Rd
Ste 200
Spring, TX 77379
Phone (832) 698-0111

6767 Lake Woodlands Dr
#F
The Woodlands, TX 77382
Phone (281) 364-1122

Organizations & group practices 17

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.

View all 17

Hospital & facility affiliations 1

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": "1379462400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768521600000",
    "number": "1689000903",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8666 MAPLE LN",
            "city": "ZEELAND",
            "state": "MI",
            "postal_code": "494649157",
            "telephone_number": "616-283-8785"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8666 MAPLE LN",
            "city": "ZEELAND",
            "state": "MI",
            "postal_code": "494649157",
            "telephone_number": "616-283-8785"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIETSEMA",
        "first_name": "CASEY",
        "middle_name": "LEVI",
        "credential": "P.A.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2013-09-18",
        "last_updated": "2026-01-16",
        "certification_date": "2026-01-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "MI",
            "license": "5601006819",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "TX",
            "license": "PA10697",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Zeeland, MI

Sources for this page

Verify at the official NPI Registry.