Organization Active NPI

Gary Hollander DO PLC

  • Physician Assistant
  • Walled Lake, MI
National Provider Identifier
1790901072
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
5601002389 Issued in MI
Legal business name
GARY HOLLANDER DO PLC
Practice address
620 N Pontiac TRL
Walled Lake, MI 48390-3443
Phone
(248) 624-4511
Fax
(248) 624-4408
NPI assigned
Apr 17, 2007
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Authorized official

Name
Mrs. Debbie Sue Witt-Haggerty
Title
Office Manager
Phone
(248) 624-4511

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Hospice and Palliative Medicine (Family Medicine) PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207QH0002X 5101013058 MI
Hospice and Palliative Medicine (Internal Medicine) PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RH0002X 5101012793 MI
Physician AssistantGroup: 193200000X MULTI-SPECIALTY GROUP 363A00000X 5601002389 MI Primary

Addresses

Primary practice location

620 N Pontiac TRL
Walled Lake, MI 48390-3443

Mailing address

620 N Pontiac TRL
Walled Lake, MI 48390-3443
Phone (248) 624-4511

Other names 1

  • Pontiac Trail Medical Center Doing business as

National Provider Directory

National Provider Directory

NPI Registry JSON

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

{
    "created_epoch": "1176768000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1790901072",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "620 N PONTIAC TRL",
            "city": "WALLED LAKE",
            "state": "MI",
            "postal_code": "483903443",
            "telephone_number": "248-624-4511",
            "fax_number": "248-624-4408"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "620 N PONTIAC TRL",
            "city": "WALLED LAKE",
            "state": "MI",
            "postal_code": "483903443",
            "telephone_number": "248-624-4511",
            "fax_number": "248-624-4408"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GARY HOLLANDER DO PLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-04-17",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "WITT-HAGGERTY",
        "authorized_official_first_name": "DEBBIE",
        "authorized_official_middle_name": "SUE",
        "authorized_official_title_or_position": "OFFICE MANAGER",
        "authorized_official_telephone_number": "248-624-4511",
        "authorized_official_name_prefix": "Mrs."
    },
    "taxonomies": [
        {
            "code": "207QH0002X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Family Medicine, Hospice and Palliative Medicine",
            "state": "MI",
            "license": "5101013058",
            "primary": false
        },
        {
            "code": "207RH0002X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Hospice and Palliative Medicine",
            "state": "MI",
            "license": "5101012793",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Physician Assistant",
            "state": "MI",
            "license": "5601002389",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Pontiac Trail Medical Center",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Walled Lake, MI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.