NPIMap

Individual provider Active NPI

Gregory N Haase, DO

  • Internal Medicine Physician
  • Warsaw, IN
National Provider Identifier
1851357032
Registry record updated Jul 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
02000857A Issued in IN
Practice address
355 E 200 N
Warsaw, IN 46582-7855
Phone
(574) 372-5625
Fax
(574) 372-5626
NPI assigned
Apr 25, 2006
Last updated
Jul 14, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 14, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 02000857A IN Primary

Addresses

Primary practice location

355 E 200 N
Warsaw, IN 46582-7855

Mailing address

11109 Parkview Plaza Dr # 117
Fort Wayne, IN 46845-1701

Other identifiers 1

IdentifierTypeStateIssuer
100158930MedicaidIN

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN
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
I20070613000550 IN Practitioner - Internal Medicine 0143328211 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 1981
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Parkview Health System IncGroup PAC ID 2163336967, 1,350 clinicians

Practice addresses (Care Compare)

817 Trail Ridge Rd
Albion, IN 46701-1534
Phone (260) 373-9590

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
90.99 of 100Reported as apm
Quality
77.41
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
02000857AINMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Kosciusko Medical Group LLC Internal Medicine CurrentSince Sep 1, 2009 Accepting new patients
Parkview Health System Inc Internal Medicine Past Accepting new patients

Locations

1001 N Main St
Ste 1
Nappanee, IN 46550
Phone (574) 372-7637

1205 Provident Dr
#A
Warsaw, IN 46580
Phone (574) 269-8383

2101 Dubois Dr
Warsaw, IN 46580
Phone (219) 267-3200

1520 Provident Dr
Warsaw, IN 46580
Phone (260) 434-6447

1540 Provident Dr
Warsaw, IN 46580
Phone (219) 372-7637

2235 Dubois Dr
Warsaw, IN 46580
Phone (260) 423-2567

Interoperability endpoints

  • Direct secure messaging: gregory.haase@lutheranhealthnetwork.cernerdirect.com

Organizations & group practices 2

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 9

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": "1145923200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783987200000",
    "number": "1851357032",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11109 PARKVIEW PLAZA DR # 117",
            "city": "FORT WAYNE",
            "state": "IN",
            "postal_code": "468451701"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "355 E 200 N",
            "city": "WARSAW",
            "state": "IN",
            "postal_code": "465827855",
            "telephone_number": "574-372-5625",
            "fax_number": "574-372-5626"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAASE",
        "first_name": "GREGORY",
        "middle_name": "N",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-25",
        "last_updated": "2026-07-14",
        "certification_date": "2026-07-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IN",
            "license": "02000857A",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100158930",
            "state": "IN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Warsaw, IN

Sources for this page

Verify at the official NPI Registry.