Ryan Mark Hessenius, MD

Primary specialty

Pediatric Critical Care Medicine PhysicianTaxonomy code 2080P0203X

License

ME179041 Issued in FL

Practice address

807 Childrens Way
Jacksonville, FL 32207-8426

Phone

(904) 697-3600

NPI assigned

Apr 1, 2020

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1585699200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780444800000",
    "number": "1629606793",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "807 CHILDRENS WAY",
            "city": "JACKSONVILLE",
            "state": "FL",
            "postal_code": "322078426"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "807 CHILDRENS WAY",
            "city": "JACKSONVILLE",
            "state": "FL",
            "postal_code": "322078426",
            "telephone_number": "904-697-3600"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HESSENIUS",
        "first_name": "RYAN",
        "middle_name": "MARK",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2020-04-01",
        "last_updated": "2026-06-03",
        "certification_date": "2026-06-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "FL",
            "license": "ME179041",
            "primary": false
        },
        {
            "code": "2080P0203X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Critical Care Medicine",
            "state": "FL",
            "license": "ME179041",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Frederick Charles Herx IV, DC
• Tara L Heselschwerdt, RD
• Monica Heseman, CRNA
• Kayla Hess, PA-C
• Hossam A Hessen, MD
• Amy Hessler, DO
• Rick Martin Hessler Jr., PHARMD
• Courtney Hester, OTR/L
• Shanika Marie Hester
• Timothy Shane Hester, D.O.

• Pediatric Critical Care Medicine Physician in Jacksonville, FL
• Providers in Jacksonville, FL by specialty
• Pediatric Critical Care Medicine Physician in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 3, 2026; 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.