Nicholas S Muff, MD

Primary specialty

SpecialistTaxonomy code 174400000X

License

MD00015015 Issued in WA

Practice address

260 E Ontario Ave Ste 101
Corona, CA 92879-3508

Phone

(949) 490-4820

Fax

(949) 490-4819

NPI assigned

Sep 28, 2006

Last updated

Jun 13, 2025By 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 2

Addresses

Other identifiers 3

Medicare fee-for-service enrollment

Enrolled in WA, CA, NV3 enrollments

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 3

Specialty

Radiation Oncology

Education

Loma Linda University School of Medicine, 1972

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Stephen William Doggett MD PAGroup PAC ID 9830235217, 5 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: nmuff349010@direct.multicare.org

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.

• Stephen William Doggett, M.D. PA

  • Radiation Oncology Physician
  • Newport Beach, CA
  • NPI 1427281666

  NV, WA

  Medicare reassignment Care Compare group NPD
• Compassionate Cancer Care Radiation Diagnostics Group Inc

  • Radiation Oncology Physician
  • Corona, CA
  • NPI 1720234081
  Medicare reassignment NPD
• Dermatology & Laser Center of San Diego

  • Dermatology Physician
  • Chula Vista, CA
  • NPI 1457396178

  Specialist

  Medicare reassignment NPD
• Folsom Dermatology

  • Dermatology Physician
  • Folsom, CA
  • NPI 1669731899
  Medicare reassignment NPD
• Minarets Medical Group, Inc.

  • Dermatology Physician
  • Fresno, CA
  • NPI 1063626265
  Medicare reassignment NPD
• Dermahealth Dermatology, PLLC

  • Dermatology Physician
  • Richland, WA
  • NPI 1881835171
  Medicare reassignment NPD
• Nicholas S Muff MD PS

  • Specialist
  • Sedro Woolley, WA
  • NPI 1245325950
  NPD (past) Authorized official
• Artius Dermatology Associates, P.C.

  dba Lux Dermatology

  • Dermatology Physician
  • Hanford, CA
  • NPI 1245782291
  NPD
• Grossmont Dermatology Medical Clinic

  dba Coastal Skin and Eye Institute

  • Procedural Dermatology Physician
  • La Mesa, CA
  • NPI 1194838441
  NPD (past)
• Dignity Health

  dba St. Joseph's Hospital and Medical Center

  • General Acute Care Hospital
  • Phoenix, AZ
  • NPI 1982733655
  NPD (past)
• Peacehealth

  dba PeaceHealth United General Medical Center

  • Critical Access Hospital
  • Sedro Woolley, WA
  • NPI 1144664954
  NPD (past)
• Public Hospital Dist No 1 Skagit

  • Specialist
  • Mount Vernon, WA
  • NPI 1629012463
  NPD (past)

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

{
    "created_epoch": "1159401600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749772800000",
    "number": "1740372861",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "P O BOX 977",
            "city": "COUPEVILLE",
            "state": "WA",
            "postal_code": "98239",
            "telephone_number": "360-678-4071",
            "fax_number": "360-678-6014"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "260 E ONTARIO AVE STE 101",
            "city": "CORONA",
            "state": "CA",
            "postal_code": "928793508",
            "telephone_number": "949-490-4820",
            "fax_number": "949-490-4819"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2000 HOSPITAL DRIVE",
            "address_purpose": "LOCATION",
            "city": "SEDRO WOOLLEY",
            "state": "WA",
            "postal_code": "98284",
            "country_code": "US",
            "telephone_number": "360-856-7270",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MUFF",
        "first_name": "NICHOLAS",
        "middle_name": "S",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-09-28",
        "last_updated": "2025-06-13",
        "certification_date": "2025-06-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "WA",
            "license": "MD00015015",
            "primary": true
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "CA",
            "license": "G25544",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "GROUP HEALTH",
            "identifier": "13895001",
            "state": "WA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "REGENCE BS",
            "identifier": "05660",
            "state": "WA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1160381",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• MPZ Dermatology
• Mr Patel DDS, Inc. (Sixth & Smith Dental Care)
• MST Consulting, LLC.
• Teresia Ndete Muathe, REGISTERED NURSE
• Michelle Ann Mueller, RD
• Elvis-Raymond Mukwikwi
• Dorothy Mbula Muli
• Jeffery Alan Muller, M.D.
• Carolyn Mullin
• Multispeciality and Occupational Injury Medical Center a Med Corp

• Specialist in Corona, CA
• Providers in Corona, CA by specialty
• Specialist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 13, 2025; 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.