Individual provider Active NPI

Harry G Parr, DO

  • Pain Medicine (Anesthesiology) Physician
  • Royal Oak, MI
National Provider Identifier
1821062092
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pain Medicine (Anesthesiology) PhysicianTaxonomy code 207LP2900X
License
5101011972 Issued in MI
Practice address
3601 W 13 Mile Rd
Anesthesiology Dept
Royal Oak, MI 48073
Phone
(248) 723-1635
Fax
(248) 723-1681
NPI assigned
Feb 15, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X 5101011972 MI
Pain Medicine (Anesthesiology) Physician 207LP2900X 5101011972 MI Primary

Addresses

Primary practice location

3601 W 13 Mile Rd
Anesthesiology Dept
Royal Oak, MI 48073

Mailing address

3601 W 13 Mile Rd
Anesthesiology Dept
Royal Oak, MI 48073
Phone (248) 723-1635

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20110127001103 MI Practitioner - Anesthesiology 5799867891 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Michigan State University College of Osteopathic Medicine, 1993
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Novi Aas LLCGroup PAC ID 1557587847, 14 clinicians
Northwestern Services LLCGroup PAC ID 4486723657, 47 clinicians

Practice addresses (Care Compare)

25500 Meadowbrook Rd
Suite 110
Novi, MI 48375-1879
Phone (248) 477-2200

30055 Northwestern Hwy
Suite L 60
Farmington Hills, MI 48334-3274
Phone (248) 265-6555

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Northwestern Services, LLC Anesthesiology CurrentSince Jan 1, 2016 Accepting new patients
Northwestern Services, LLC Current Accepting new patients
Novi Aas LLC Anesthesiology CurrentSince Mar 1, 2025 Accepting new patients
American Anesthesiology of Michigan PC Anesthesiology Past Accepting new patients

Locations

30055 Northwestern Hwy
Ste L-60
Farmington Hills, MI 48334
Phone (248) 265-6555

3800 Centennial Dr
Grass Lake, MI 49240
Phone (517) 701-3100

43422 W Oaks Dr
Novi, MI 48377
Phone (248) 229-4658

25500 Meadowbrook Rd
Ste 110
Novi, MI 48375
Phone (248) 477-0220

Interoperability endpoints

  • Direct secure messaging: hparr1074753@direct.hfhs.org

Organizations & group practices 4

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.

NPI Registry JSON

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

{
    "created_epoch": "1139961600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1821062092",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3601 W 13 MILE RD",
            "address_2": "ANESTHESIOLOGY DEPT",
            "city": "ROYAL OAK",
            "state": "MI",
            "postal_code": "48073",
            "telephone_number": "248-723-1635",
            "fax_number": "248-723-1681"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3601 W 13 MILE RD",
            "address_2": "ANESTHESIOLOGY DEPT",
            "city": "ROYAL OAK",
            "state": "MI",
            "postal_code": "48073",
            "telephone_number": "248-723-1635",
            "fax_number": "248-723-1681"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PARR",
        "first_name": "HARRY",
        "middle_name": "G",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-15",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MI",
            "license": "5101011972",
            "primary": false
        },
        {
            "code": "207LP2900X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Pain Medicine",
            "state": "MI",
            "license": "5101011972",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Royal Oak, MI

Sources for this page

Verify at the official NPI Registry.