Gerri Lynn Hagadon-Szakal, MSN, CNP, DNP, PMHNP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

4704152236 Issued in MI

Practice address

721 N Shiawassee St Ste 201
Owosso, MI 48867-1632

Phone

(989) 725-8124

Fax

(989) 723-1205

NPI assigned

Jun 13, 2005

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Other names 1

• Gerri L Hagadon Former name

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 1999

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Downriver Mental Health Clinic PCGroup PAC ID 7911995139, 289 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Nurse Practitioner, Master of Science - Nursing, Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: lifestancehealth.gerrihagadon-szakal@150339.advancedmd-direct.com

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.

• Downriver Mental Health Clinic PC

  • Psychologist
  • Taylor, MI
  • NPI 1295866135
  Medicare reassignment Care Compare group NPD
• Havenwyck Hospital Inc

  • Psychiatric Hospital
  • Auburn Hills, MI
  • NPI 1053342220
  Medicare reassignment NPD
• Recovery Physicians Network of Michigan

  • Addiction (Substance Use Disorder) Psychologist
  • Auburn Hills, MI
  • NPI 1689343683

  Psychiatric/Mental Health

  Medicare reassignment NPD
• Mid-Michigan Behavioral Health, PC

  • Psychiatry Physician
  • Owosso, MI
  • NPI 1083823835
  Medicare reassignment
• Downriver Mental Health Clinic PC

  • Psychologist
  • Taylor, MI
  • NPI 1104930130
  NPD
• Havenwyck Hospital Inc

  • Psychiatric Hospital
  • St Johns, MI
  • NPI 1053841650
  NPD
• Archibald W. Dettman

  • General Practice Physician
  • Corunna, MI
  • NPI 1184642886

  Nurse Practitioner

  NPD (past)
• Memorial Hospital

  • General Practice Physician
  • Owosso, MI
  • NPI 1235160532

  Nurse Practitioner

  NPD (past)

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

{
    "created_epoch": "1118620800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784160000000",
    "number": "1831193358",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "721 N SHIAWASSEE ST STE 201",
            "city": "OWOSSO",
            "state": "MI",
            "postal_code": "488671632",
            "telephone_number": "989-725-8124",
            "fax_number": "989-723-1205"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "721 N SHIAWASSEE ST STE 201",
            "city": "OWOSSO",
            "state": "MI",
            "postal_code": "488671632",
            "telephone_number": "989-725-8124",
            "fax_number": "989-723-1205"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAGADON-SZAKAL",
        "first_name": "GERRI",
        "middle_name": "LYNN",
        "credential": "MSN, CNP, DNP, PMHNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-06-13",
        "last_updated": "2026-07-16",
        "certification_date": "2026-07-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "MI",
            "license": "4704152236",
            "primary": true
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MI",
            "license": "4704152236",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1831193358",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "GERRI",
            "last_name": "HAGADON",
            "middle_name": "L",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Amaya Guthrie
• Toni Irene' Guye, LMSW, CAADC
• Olivia Gyomory
• Sherin Habashy
• Rhoda Louise Hacker, LMSW
• Emily Hager
• Dakita Hall
• Ivy Hamby
• Thomas Ryan Hamilton
• Robert Maoshing Han, MD

• Psychiatric/Mental Health Nurse Practitioner in Owosso, MI
• Providers in Owosso, MI by specialty
• Psychiatric/Mental Health Nurse Practitioner in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.