Individual provider Active NPI

Loren W Havemeier, PA

  • Physician Assistant
  • Des Moines, IA
National Provider Identifier
1861620692
Registry record updated May 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
002367 Issued in IA
Practice address
1215 Pleasant St Ste 618
Des Moines, IA 50309-1418
Phone
(515) 875-9090
NPI assigned
Jul 1, 2009
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 7, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 002367 IA Primary
Surgical Physician Assistant 363AS0400X 2454 WI

Addresses

Primary practice location

1215 Pleasant St Ste 618
Des Moines, IA 50309-1418

Mailing address

7147 Vista Dr Ste 150
West Des Moines, IA 50266-9317
Phone (515) 875-9255

Other practice location 1

1836 South Ave
LA Crosse, WI 54601-5429
Phone (608) 782-7300

Other practice location 2

Marshfield Clinic
1000 N Oak Avenue
Marshfield, WI 54449
Phone (715) 389-0791

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address him@marshfieldclinichealthsystem.cernerdirect.com
Direct Messaging Address him@marshfieldclinichealthsystem.cernerdirect.com

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, IA2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20090723000420 WI Practitioner - Physician Assistant 6507918448 Reassigns benefits to 8 organizations
I20130715000736 IA Practitioner - Physician Assistant 6507918448 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Central Iowa Hospital CorporationGroup PAC ID 1052229275, 233 clinicians

Practice addresses (Care Compare)

1200 Pleasant St
Des Moines, IA 50309-1406
Phone (515) 241-6435

1206 Pleasant St
Des Moines, IA 50309-1406
Phone (515) 241-6465

410 NW Ash Dr
Ankeny, IA 50023-1552
Phone (515) 964-1101

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
82.56 of 100Reported as group
Quality
83.65
Promoting interoperability
78
Improvement activities
40
Cost
76.53

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
2454WIMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
MCHS Hospitals Inc Current Accepting new patients
Ascension Medical Group-Fox Valley Wisconsin, Inc CurrentSince Apr 17, 2025 Accepting new patients
MCHS Hospitals Inc CurrentSince Mar 1, 2018 Accepting new patients
Marshfield Clinic Inc CurrentSince Mar 1, 2017 Accepting new patients
Lakeview Medical Center Inc of Rice Lake CurrentSince Sep 12, 2018 Accepting new patients
Memorial Hospital Inc CurrentSince Apr 10, 2025 Accepting new patients
Lakeview Medical Center Inc of Rice Lake CurrentSince Sep 12, 2018 Accepting new patients
Aspirus Wausau Hospital, Inc. CurrentSince Jun 25, 2025 Accepting new patients
Flambeau Hospital Inc CurrentSince Apr 10, 2025 Accepting new patients
Ascension Medical Group-Fox Valley Wisconsin, Inc CurrentSince Apr 17, 2025 Accepting new patients
Flambeau Hospital Inc CurrentSince Apr 10, 2025 Accepting new patients
Aspirus Medical Group, Inc. CurrentSince Jun 25, 2025 Accepting new patients
Memorial Hospital Inc CurrentSince Apr 10, 2025 Accepting new patients
Central Iowa Hospital Corporation CurrentSince Dec 10, 2021 Accepting new patients
St Luke'S Methodist Hospital Current Accepting new patients
Central Iowa Hospital Corporation CurrentSince Dec 10, 2021 Accepting new patients
MCHS Hospitals Inc CurrentSince Mar 1, 2018 Accepting new patients
Beaver Dam Community Hospitals Inc CurrentSince Apr 10, 2025 Accepting new patients

Locations

410 NW Ash Dr
Ankeny, IA 50023
Phone (515) 964-1101

1215 Pleasant St
Ste 618
Des Moines, IA 50309
Phone (515) 875-9090

29980 Network Pl
Chicago, IL 60673

1501 S Madison St
Appleton, WI 54915
Phone (920) 730-4435

1506 S Oneida St
Appleton, WI 54915
Phone (920) 730-4950

705 S University Ave
Beaver Dam, WI 53916
Phone (920) 885-6090

1000 Starr Ave
Eau Claire, WI 54703
Phone (715) 858-4850

900 W Clairemont Ave
Eau Claire, WI 54701
Phone (715) 717-4121

3501 Golf Rd
Eau Claire, WI 54701
Phone (715) 858-4200

1000 N Oak Ave
Marshfield, WI 54449
Phone (715) 387-5111

1102 S Center Ave
Merrill, WI 54452
Phone (715) 536-3399

N3708 River Ave
Neillsville, WI 54456
Phone (715) 743-3101

2700 W 9th Ave
Oshkosh, WI 54904
Phone (920) 223-0220

1700 W Stout St
Rice Lake, WI 54868
Phone (715) 236-6133

4005 Community Center Dr
Weston, WI 54476
Phone (715) 241-5400

Interoperability endpoints

  • Direct secure messaging: lhavemeier378542@direct.aspirus.org
  • Direct secure messaging: lhavemeier143157@direct.unitypoint.org
  • Direct secure messaging: loren.havemeier@marshfieldclinichealthsystem.cernerdirect.com
  • FHIR API: https://fhir-myrecord.cerner.com/r4/67ff075a-8289-4f2d-a8eb-5dc1f0d954ab/
  • Direct secure messaging: him@marshfieldclinichealthsystem.cernerdirect.com

Organizations & group practices 19

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

View all 19

Hospital & facility affiliations 3

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": "1246406400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778112000000",
    "number": "1861620692",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7147 VISTA DR STE 150",
            "city": "WEST DES MOINES",
            "state": "IA",
            "postal_code": "502669317",
            "telephone_number": "515-875-9255",
            "fax_number": "515-875-9223"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1215 PLEASANT ST STE 618",
            "city": "DES MOINES",
            "state": "IA",
            "postal_code": "503091418",
            "telephone_number": "515-875-9090"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1836 South Ave",
            "address_purpose": "LOCATION",
            "city": "LA Crosse",
            "state": "WI",
            "postal_code": "546015429",
            "country_code": "US",
            "telephone_number": "608-782-7300",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "Marshfield Clinic",
            "address_2": "1000 N Oak Avenue",
            "address_purpose": "LOCATION",
            "city": "Marshfield",
            "state": "WI",
            "postal_code": "54449",
            "country_code": "US",
            "telephone_number": "715-389-0791",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAVEMEIER",
        "first_name": "LOREN",
        "middle_name": "W",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-07-01",
        "last_updated": "2026-05-07",
        "certification_date": "2026-05-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IA",
            "license": "002367",
            "primary": true
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "WI",
            "license": "2454",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "him@marshfieldclinichealthsystem.cernerdirect.com",
            "affiliation": "N",
            "address_1": "1836 South Ave",
            "city": "LA Crosse",
            "state": "WI",
            "country_code": "US",
            "postal_code": "546015429",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "him@marshfieldclinichealthsystem.cernerdirect.com",
            "affiliation": "N",
            "address_1": "Marshfield Clinic",
            "address_2": "1000 N Oak Avenue",
            "city": "Marshfield",
            "state": "WI",
            "country_code": "US",
            "postal_code": "54449",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Des Moines, IA

Sources for this page

Verify at the official NPI Registry.