NPIMap

Individual provider Active NPI

Brian T Gietzen, MD

  • Internal Medicine Physician
  • Rochester Hills, MI
National Provider Identifier
1639154263
Registry record updated Oct 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
4301070159 Issued in MI
Practice address
1460 Walton Blvd
Ste 200
Rochester Hills, MI 48309-1768
Phone
(248) 650-1800
Fax
(248) 650-1856
NPI assigned
Dec 6, 2005
Last updated
Oct 9, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 9, 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 4301070159 MI Primary

Addresses

Primary practice location

1460 Walton Blvd
Ste 200
Rochester Hills, MI 48309-1768

Mailing address

1460 Walton Blvd
Ste 200
Rochester Hills, MI 48309-1768
Phone (248) 650-1800

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI
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
I20050923000092 MI Practitioner - Internal Medicine 3274567995 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Wayne State University School of Medicine, 1997
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Brian T Gietzen MD PCGroup PAC ID 0840224564, 5 clinicians

Practice addresses (Care Compare)

1460 Walton
Suite 200
Rochester Hills, MI 48309-1779
Phone (248) 650-1800

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
79.07 of 100Reported as group
Quality
70.44
Improvement activities
40
Cost
54.74

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Brian T. Gietzen, M. D., P. C. Internal Medicine CurrentSince Aug 1, 2005 Accepting new patients

Locations

1460 Walton Blvd
Ste 200
Rochester Hills, MI 48309
Phone (248) 650-1800

6700 N Rochester Rd
Ste 214
Rochester Hills, MI 48306
Phone (248) 650-1800

Interoperability endpoints

  • Direct secure messaging: bgietzen254602@direct.hfhs.org

Organizations & group practices 1

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 16

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 16

NPI Registry JSON

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

{
    "created_epoch": "1133827200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1791504000000",
    "number": "1639154263",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1460 WALTON BLVD",
            "address_2": "STE 200",
            "city": "ROCHESTER HILLS",
            "state": "MI",
            "postal_code": "483091768",
            "telephone_number": "248-650-1800",
            "fax_number": "248-650-1856"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1460 WALTON BLVD",
            "address_2": "STE 200",
            "city": "ROCHESTER HILLS",
            "state": "MI",
            "postal_code": "483091768",
            "telephone_number": "248-650-1800",
            "fax_number": "248-650-1856"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GIETZEN",
        "first_name": "BRIAN",
        "middle_name": "T",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-12-06",
        "last_updated": "2026-10-09",
        "certification_date": "2026-10-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301070159",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Rochester Hills, MI

Sources for this page

Verify at the official NPI Registry.