Primary Diagnostics Medical Group of California P.C.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

Legal business name

PRIMARY DIAGNOSTICS MEDICAL GROUP OF CALIFORNIA P.C.

Doing business as

Primary.Health Medical

Practice address

99 Osgood PL Ste 500
San Francisco, CA 94133-4629

Phone

(415) 746-9639

NPI assigned

May 10, 2022

Last updated

Aug 25, 2025By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Andrew Kobylinski

Title

Ceo

Phone

(415) 746-9639

Specialties & licenses 4

Addresses

Other names 2

• Primary.Health Medical Doing business as
• Primary Diagnostics, Inc. Other name

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

{
    "created_epoch": "1652140800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1756080000000",
    "number": "1639815863",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "595 PACIFIC AVE FL 4",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941334685",
            "telephone_number": "855-970-3223"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "99 OSGOOD PL STE 500",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941334629",
            "telephone_number": "415-746-9639"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "595 Pacific Ave Fl 4",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941334685",
            "country_code": "US",
            "telephone_number": "855-970-3223",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "PRIMARY DIAGNOSTICS MEDICAL GROUP OF CALIFORNIA P.C.",
        "organizational_subpart": "NO",
        "enumeration_date": "2022-05-10",
        "last_updated": "2025-08-25",
        "certification_date": "2025-08-25",
        "status": "A",
        "authorized_official_last_name": "KOBYLINSKI",
        "authorized_official_first_name": "ANDREW",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "415-746-9639"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NU",
            "license": null,
            "primary": true
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "333600000X",
            "taxonomy_group": "",
            "desc": "Pharmacy",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "3336C0003X",
            "taxonomy_group": "",
            "desc": "Pharmacy, Community/Retail Pharmacy",
            "state": "NU",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Primary.Health Medical",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Primary Diagnostics, Inc.",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Maia Susana Prieto
• Melinda Prieto
• Victor Anthony Prieto, MD
• Jeremy David Prillwitz
• Primary Care at Home, Inc. (Mission Wellness Pharmacy)
• Primary Diagnostics Medical Group of Kansas P.a. (Primary.Health Medical)
• Primary Diagnostics Medical Group of New Jersey P.C. (Primary.Health Medical)
• Primary Diagnostics Medical Group P.a. (Primary.Health Medical)
• Prime Medical DME LLC
• Charles Primich, NP

• Internal Medicine Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 25, 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.