Niels August Ryden, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

0101284713 Issued in VA

Practice address

3551 Roger Brooke Dr.
McHe-ZDM-M, Internal Medicine Residency
Jbsa-Fort Sam Houston, TX 78234-4504

Phone

(210) 292-7805

Fax

(210) 292-7868

NPI assigned

Mar 10, 2023

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in VA

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1678406400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781740800000",
    "number": "1922709633",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3551 ROGER BROOKE DR.",
            "address_2": "MCHE-ZDM-M, INTERNAL MEDICINE RESIDENCY",
            "city": "JBSA-FORT SAM HOUSTON",
            "state": "TX",
            "postal_code": "782344504",
            "telephone_number": "210-292-7805",
            "fax_number": "210-292-7868"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3551 ROGER BROOKE DR.",
            "address_2": "MCHE-ZDM-M, INTERNAL MEDICINE RESIDENCY",
            "city": "JBSA-FORT SAM HOUSTON",
            "state": "TX",
            "postal_code": "782344504",
            "telephone_number": "210-292-7805",
            "fax_number": "210-292-7868"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RYDEN",
        "first_name": "NIELS",
        "middle_name": "AUGUST",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-03-10",
        "last_updated": "2026-06-18",
        "certification_date": "2026-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "VA",
            "license": "0101284713",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Emily Raetz
• Bryan Christopher Ramsey, MD
• Evan M. Renz, M.D.
• Aitana Rizzo, MD
• Rosemary H Roderick Roseberry, M.D.
• Danielle Marie Santos, MD
• Katrina Savioli, MD
• Robert A Seegmiller, PH.D., ABPP
• Alex Leor Shapiro, D.O.
• Matthew Donald Smith Sr., M.D.

• Internal Medicine Physician in Jbsa-Fort Sam Houston, TX
• Providers in Jbsa-Fort Sam Houston, TX by specialty
• Internal Medicine Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 18, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.