Michael A Marsh, M.D.

Primary specialty

Otolaryngology PhysicianTaxonomy code 207Y00000X

License

79754 Issued in AZ

Practice address

20745 N Scottsdale Rd Ste 105
Scottsdale, AZ 85255-6595

Phone

(480) 534-4525

Fax

(480) 882-5051

NPI assigned

Jul 26, 2006

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 2

Medicare fee-for-service enrollment

Enrolled in AR, AZ2 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 2

Specialty

Otolaryngology

Education

Other, 1984

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Honorhealth AmbulatoryGroup PAC ID 5991603110, 630 clinicians

Arkansas Center for Ear Nose Throat and Allergy PAGroup PAC ID 0345318200, 2 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercy Hospital Fort Smith Hospital, Fort Smith, AR, CCN 040062
• Baptist Health - Fort Smith Hospital, Fort Smith, AR, CCN 040055

Merit-based Incentive Payment System (MIPS)

Final score

43.59 of 100Reported as individual

Quality

51.99

Promoting interoperability

0

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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

• Arkansas Center for Ear Nose Throat & Allergy PA

  • Otology & Neurotology Physician
  • Fort Smith, AR
  • NPI 1457387052
  Medicare reassignment Care Compare group NPD Authorized official
• Honorhealth Ambulatory

  dba HonorHealth Research Institute

  • Hematology & Oncology Physician
  • Scottsdale, AZ
  • NPI 1407050917
  Medicare reassignment Care Compare group
• Passmore Plastic Surgery LLC

  • Plastic Surgery Physician
  • Fort Smith, AR
  • NPI 1164039475
  NPD
• Mercy Hospital Fort Smith

  • General Acute Care Hospital
  • Fort Smith, AR
  • NPI 1568433480
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Baptist Health Regional Hospitals

  dba Baptist Health - Fort Smith

  • General Acute Care Hospital
  • Fort Smith, AR
  • NPI 1710463146
  Care Compare affiliation
• Mercy Hospital Fort Smith

  • General Acute Care Hospital
  • Fort Smith, AR
  • NPI 1568433480
  Care Compare affiliation

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

{
    "created_epoch": "1153872000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779321600000",
    "number": "1174547988",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20745 N SCOTTSDALE RD STE 105",
            "city": "SCOTTSDALE",
            "state": "AZ",
            "postal_code": "852556595",
            "telephone_number": "480-534-4525",
            "fax_number": "480-882-5051"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20745 N SCOTTSDALE RD STE 105",
            "city": "SCOTTSDALE",
            "state": "AZ",
            "postal_code": "852556595",
            "telephone_number": "480-534-4525",
            "fax_number": "480-882-5051"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARSH",
        "first_name": "MICHAEL",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-26",
        "last_updated": "2026-05-21",
        "certification_date": "2026-05-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "AR",
            "license": "C8388",
            "primary": false
        },
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "AZ",
            "license": "79754",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100032240A",
            "state": "OK"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "122738001",
            "state": "AR"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Katelyn Randi Lee Marsden, M.D.
• Marco N Marsella, MD
• Barbara Yvonne Marsh-Jones, NMD
• Emily Marsh, MSW
• Lindsi Lytze Marsh, MS OTR/L
• Marshall L Cook, MD
• Chelsea Nicole Marshall, MD
• Karen Marie Marshall, RN, FNP
• Leigh Marshall, L.AC.
• Shauna Marshall, PT, DPT

• Otolaryngology Physician in Scottsdale, AZ
• Providers in Scottsdale, AZ by specialty
• Otolaryngology Physician in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 21, 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.
• 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.