NPIMap

Individual provider Active NPI

Donald Mario Robert Harker, MD

  • Hospitalist Physician
  • Reno, NV
National Provider Identifier
1457934838
Registry record updated Jul 26, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
25741 Issued in NV
Practice address
6500 Longley LN
Reno, NV 89511-2632
Phone
(775) 799-7320
NPI assigned
May 3, 2021
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 26, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 25741 NV
Hospitalist Physician 208M00000X 25741 NV Primary

Addresses

Primary practice location

6500 Longley LN
Reno, NV 89511-2632

Mailing address

2375 E Prater Way
Sparks, NV 89434-9665
Phone (775) 352-5301

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NV
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
I20240924001343 NV Practitioner - HospitalistPractitioner - Family Practice 2365818648 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Family Practice
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Northern Nevada Medical Group LLCGroup PAC ID 7214093020, 83 clinicians

Practice addresses (Care Compare)

2385 E Prater Way
Suite 205
Sparks, NV 89434-9688
Phone (775) 356-4888

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
86.15 of 100Reported as group
Quality
78.17
Promoting interoperability
100
Improvement activities
40
Cost
75.68

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Northern Nevada Medical Group, LLC Family Medicine CurrentSince Oct 1, 2025 Accepting new patients
Sparks Family Hospital Inc Past Accepting new patients

Locations

6500 Longley Ln
Reno, NV 89511
Phone (775) 331-7000

2375 E Prater Way
Sparks, NV 89434
Phone (775) 331-7000

2385 E Prater Way
Ste 205
Sparks, NV 89434
Phone (775) 356-4888

Interoperability endpoints

  • Direct secure messaging: dharker147327@direct.renown.org
  • Direct secure messaging: donald.harker.p1@direct.nevadahealthcenters.nextgenshare.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 and National Provider Directory roles.

Hospital & facility affiliations 12

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": "1620000000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753488000000",
    "number": "1457934838",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2375 E PRATER WAY",
            "city": "SPARKS",
            "state": "NV",
            "postal_code": "894349665",
            "telephone_number": "775-352-5301",
            "fax_number": "775-610-8783"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6500 LONGLEY LN",
            "city": "RENO",
            "state": "NV",
            "postal_code": "895112632",
            "telephone_number": "775-799-7320"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARKER",
        "first_name": "DONALD",
        "middle_name": "MARIO ROBERT",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-05-03",
        "last_updated": "2025-07-26",
        "certification_date": "2025-07-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NV",
            "license": "25741",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "NV",
            "license": "25741",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Reno, NV

Sources for this page

Verify at the official NPI Registry.