Eugene Gerard Marciniak, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

2000237 Issued in NM

Practice address

999 W Amador Ave Ste a
Las Cruces, NM 88005-2739

Phone

(575) 527-5482

Fax

(575) 525-3542

NPI assigned

Dec 2, 2005

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in NM

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 1

Specialty

Internal Medicine

Education

Indiana University School of Medicine, 1982

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Amador Health Center, Inc. 9 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: eugene.marciniak.1@27572.direct.athenahealth.com

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.

• Amador Health Center, Inc.

  • Federally Qualified Health Center (FQHC)
  • Las Cruces, NM
  • NPI 1700178167

  NM

  Medicare reassignment Care Compare group NPD
• Amador Health Center, Inc.

  • Community/Retail Pharmacy
  • Las Cruces, NM
  • NPI 1407343445
  Care Compare group NPD

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

{
    "created_epoch": "1133481600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767916800000",
    "number": "1407830458",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "999 W AMADOR AVE STE A",
            "city": "LAS CRUCES",
            "state": "NM",
            "postal_code": "880052739",
            "telephone_number": "575-527-5482",
            "fax_number": "575-525-3542"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "999 W AMADOR AVE STE A",
            "city": "LAS CRUCES",
            "state": "NM",
            "postal_code": "880052739",
            "telephone_number": "575-527-5482",
            "fax_number": "575-525-3542"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARCINIAK",
        "first_name": "EUGENE",
        "middle_name": "GERARD",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-02",
        "last_updated": "2026-01-09",
        "certification_date": "2026-01-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NM",
            "license": "2000237",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "68979",
            "state": "NM"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Aous Manshad, DDS
• Cynthia Mantegna, MS, OTR/L
• Mary Josephine Manzano, B.A.
• Marc a Caplan PHD PA
• Marc Ellman, M.D., P.a.
• Carley Jo Mardini, FNP-C
• Catherine C Mares, SLP
• Elizabeth Mares, LMT
• Brittney Renea Marez, CPSW
• Margaret J. Byers, DO, SC

• All providers in Las Cruces, NM
• Internal Medicine Physician in New Mexico

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 9, 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.