Mersio Inc

Primary specialty

Clinic/CenterTaxonomy code 261Q00000X

Legal business name

MERSIO INC

Practice address

8 N State St Ste 105
Lake Oswego, OR 97034-3956

Phone

(503) 697-9777

NPI assigned

Dec 29, 2025

Organization subpart

No

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

Authorized official

Name

Dr. Jerrold Roy Darm, MD

Title

Medical Director

Phone

(503) 697-9777

Specialties & licenses 1

Addresses

Locations

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Jerry Roy Darm, M.D.

  • General Practice Physician
  • Lake Oswego, OR
  • NPI 1134337314
  NPD

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

{
    "created_epoch": "1766966400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1766966400000",
    "number": "1619833175",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8 N STATE ST STE 105",
            "city": "LAKE OSWEGO",
            "state": "OR",
            "postal_code": "970343956",
            "telephone_number": "503-697-9777"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8 N STATE ST STE 105",
            "city": "LAKE OSWEGO",
            "state": "OR",
            "postal_code": "970343956",
            "telephone_number": "503-697-9777"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MERSIO INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-12-29",
        "last_updated": "2025-12-29",
        "certification_date": "2025-12-29",
        "status": "A",
        "authorized_official_last_name": "DARM",
        "authorized_official_first_name": "JERROLD",
        "authorized_official_middle_name": "ROY",
        "authorized_official_title_or_position": "MEDICAL DIRECTOR",
        "authorized_official_telephone_number": "503-697-9777",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "261Q00000X",
            "taxonomy_group": "",
            "desc": "Clinic/Center",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sarah Jean Menezes
• Mental Health NW LLC
• Chanel Mercado, CCC-SLP
• Juliana Mercer
• George Meredith, L.M.T.
• Deborah Lynn Mertlich, LCSW
• Cari Mestas
• Mindy Meyers, LMT
• Natalie Mickola, MA, LPC
• Cindy Miguel, M.A.

• Clinic/Center in Lake Oswego, OR
• Providers in Lake Oswego, OR by specialty
• Clinic/Center in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 29, 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.