Alonso Jose Marquez Fuenmayor, MD

Primary specialty

Pulmonary Disease PhysicianTaxonomy code 207RP1001X

License

A207686 Issued in CA

Practice address

4234 Riverwalk Pkwy Ste 230
Riverside, CA 92505-3312

Phone

(951) 781-3672

Fax

(951) 781-0365

NPI assigned

Jul 1, 2020

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in DE, CA2 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

Internal Medicine

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Christiana Care Health Services IncGroup PAC ID 9739097569, 1,480 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Christiana Hospital Hospital, Newark, DE, CCN 080001

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.

• Christiana Care Health Services Inc

  dba CCHS Hospitalist Partners

  • Hospitalist Physician
  • Newark, DE
  • NPI 1245474329

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Christiana Care Health Services Inc

  dba CCHS Concord - Neurology

  • Neurology Physician
  • Chadds Ford, PA
  • NPI 1881228484
  NPD

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

• Christiana Care Health Services, Inc.

  dba Christiana Care

  • General Acute Care Hospital
  • Wilmington, DE
  • NPI 1134194038
  Care Compare affiliation

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

{
    "created_epoch": "1593561600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776816000000",
    "number": "1952928319",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4234 RIVERWALK PKWY STE 230",
            "city": "RIVERSIDE",
            "state": "CA",
            "postal_code": "925053312",
            "telephone_number": "951-781-3672",
            "fax_number": "951-781-0365"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4234 RIVERWALK PKWY STE 230",
            "city": "RIVERSIDE",
            "state": "CA",
            "postal_code": "925053312",
            "telephone_number": "951-781-3672",
            "fax_number": "951-781-0365"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARQUEZ FUENMAYOR",
        "first_name": "ALONSO",
        "middle_name": "JOSE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-07-01",
        "last_updated": "2026-04-22",
        "certification_date": "2026-04-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "CA",
            "license": "A207686",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "MT229847",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A207686",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "CA",
            "license": "A207686",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Diana Luz Marmolejo
• Anne Marie Marocco-Casey, D.D.S.
• Marque Medical Clinic, Inc. (Marque Urgent Care)
• Jennifer Deann Marquecho
• Arlene Marques
• Alejandra Marquez-Claypool
• Adelinne Marquez
• Blanca Marquez
• Brenda J Marquez, DPT
• Edward Marquez

• Pulmonary Disease Physician in Riverside, CA
• Providers in Riverside, CA by specialty
• Pulmonary Disease Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 22, 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.