Individual provider Active NPI

Mark T. O'Brien, D.O.

  • Family Medicine Physician
  • Saint Clair, MI
National Provider Identifier
1255322509
Registry record updated Feb 25, 2022
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
5101009744 Issued in MI
Practice address
1280 S 9TH St
Saint Clair, MI 48079-5368
Phone
(810) 326-0837
Fax
(810) 326-1534
NPI assigned
Nov 3, 2005
Last updated
Feb 25, 2022By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Feb 25, 2022

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 5101009744 MI Primary

Addresses

Primary practice location

1280 S 9TH St
Saint Clair, MI 48079-5368

Mailing address

1280 S 9TH St
Saint Clair, MI 48079-5368
Phone (810) 326-0837

Other practice location 1

4150 River Rd
Suite F2
East China, MI 48054-2915
Phone (810) 329-4660

Other identifiers 1

IdentifierTypeStateIssuer
2662631MedicaidMI

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
I20070619000109 MI Practitioner - Family Practice 0042319964 Reassigns benefits to 2 organizations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
5101009744MIMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Henry Ford Health River District Hospital Family Medicine CurrentSince Feb 1, 2022 Accepting new patients
Seton Health Corporation of Southeastern Michigan CurrentSince Jan 1, 2018 Accepting new patients
Seton Health Corporation of Southeastern Michigan Family Medicine CurrentSince Jan 1, 2018 Accepting new patients
Henry Ford Health River District Hospital CurrentSince Feb 1, 2022 Accepting new patients
Intercare Community Health Network Past Accepting new patients

Locations

4100 S River Rd
East China, MI 48054
Phone (810) 329-6677

1280 S 9th St
Saint Clair, MI 48079
Phone (810) 326-0837

74 S Elk St
Sandusky, MI 48471
Phone (810) 487-4676

Interoperability endpoints

  • Direct secure messaging: mobrien1143245@direct.hfhs.org

Organizations & group practices 5

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.

NPI Registry JSON

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

{
    "created_epoch": "1130976000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1645747200000",
    "number": "1255322509",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1280 S 9TH ST",
            "city": "SAINT CLAIR",
            "state": "MI",
            "postal_code": "480795368",
            "telephone_number": "810-326-0837",
            "fax_number": "810-326-1534"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1280 S 9TH ST",
            "city": "SAINT CLAIR",
            "state": "MI",
            "postal_code": "480795368",
            "telephone_number": "810-326-0837",
            "fax_number": "810-326-1534"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4150 River Rd",
            "address_2": "Suite F2",
            "address_purpose": "LOCATION",
            "city": "East China",
            "state": "MI",
            "postal_code": "480542915",
            "country_code": "US",
            "telephone_number": "810-329-4660",
            "fax_number": "810-329-4699",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "MARK",
        "middle_name": "T.",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-11-03",
        "last_updated": "2022-02-25",
        "certification_date": "2022-02-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MI",
            "license": "5101009744",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2662631",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Saint Clair, MI

Sources for this page

Verify at the official NPI Registry.