John Walstrom

Primary specialty

Critical Care Medicine Registered NurseTaxonomy code 163WC0200X

License

278099 Issued in AZ

Practice address

1305 N Martin Ave
Tucson, AZ 85721-0001

Phone

(520) 626-6154

NPI assigned

Sep 8, 2025

Last updated

Sep 8, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• University of Arizona Nursing and Health Associates

  • Family Nurse Practitioner
  • Tucson, AZ
  • NPI 1801345004
  NPD (past)

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

{
    "created_epoch": "1757289600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757289600000",
    "number": "1760362982",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1361 E SHEFFIELD AVE",
            "city": "GILBERT",
            "state": "AZ",
            "postal_code": "852964313",
            "telephone_number": "360-558-0949"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1305 N MARTIN AVE",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857210001",
            "telephone_number": "520-626-6154"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WALSTROM",
        "first_name": "JOHN",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-09-08",
        "last_updated": "2025-09-08",
        "certification_date": "2025-09-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WC0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Critical Care Medicine",
            "state": "AZ",
            "license": "278099",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mary C Walsh, N.P.
• Rachel J Walsh, CPM, LM
• Travis Kent Walsh, D.O.
• Debra L Walshaw, M.D.
• Michael Sherwin Walston, M.D.
• Debra A Walter, M.D.
• Frank G Walter, MD
• Mattia Walter, MD
• Sarah Christian Walter, NP
• April Walters, R.D.

• Critical Care Medicine Registered Nurse in Tucson, AZ
• Providers in Tucson, AZ by specialty
• Critical Care Medicine Registered Nurse in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 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.