Marvin Rudolph Napgezek, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

20999 Issued in MN

Practice address

1550 Highway 71 NE
Willmar Regional Treatment Center
Willmar, MN 56201-9599

Phone

(320) 231-5100

Fax

(320) 231-5329

NPI assigned

Jan 4, 2006

Last updated

Jul 13, 2026By the provider in NPPES

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

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Community Behavioral Health Hospital-Willmar

  dba CBHH-Willmar

  • Psychiatric Hospital
  • Willmar, MN
  • NPI 1699931824
  NPD (past)
• Minnesota Speciality Health Systems Willmar

  • Mental Illness Community Based Residential Treatment Facility
  • Willmar, MN
  • NPI 1194014134
  NPD (past)

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

{
    "created_epoch": "1136332800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1215915715",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1550 HIGHWAY 71 NE",
            "address_2": "WILLMAR REGIONAL TREATMENT CENTER",
            "city": "WILLMAR",
            "state": "MN",
            "postal_code": "562019599",
            "telephone_number": "320-231-5100",
            "fax_number": "320-231-5329"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1550 HIGHWAY 71 NE",
            "address_2": "WILLMAR REGIONAL TREATMENT CENTER",
            "city": "WILLMAR",
            "state": "MN",
            "postal_code": "562019599",
            "telephone_number": "320-231-5100",
            "fax_number": "320-231-5329"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NAPGEZEK",
        "first_name": "MARVIN",
        "middle_name": "RUDOLPH",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-04",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MN",
            "license": "20999",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Timothy S Mulder, M.D.
• David Anthony Munson, LICSW
• Lindsey Murphy, PA-C
• Edmund Edward Nadolny, PH.D.
• Michael A Nagel, O.D.
• Mallory Theresa Nath, LICSW
• Steven J Nedrelow, DDS MSD PA
• Trent John Neisen, DDS
• Nelson Clinic and Rehabilitation Care PA
• Ann Marie Nelson, CRNA

• Internal Medicine Physician in Willmar, MN
• Providers in Willmar, MN by specialty
• Internal Medicine Physician in Minnesota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.