Juan D Mazariegos, MD

Primary specialty

SpecialistTaxonomy code 174400000X

License

176502 Issued in NY

Practice address

565 Abbott Rd
Buffalo, NY 14220-2039

Phone

(716) 826-7000

Fax

(716) 692-4342

NPI assigned

May 2, 2006

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Eastern Great Lakes Pathology PC

  • Anatomic Pathology & Clinical Pathology Physician
  • Buffalo, NY
  • NPI 1467481564
  NPD
• Sisters of Charity Hospital of Buffalo, New York

  • Obstetrics & Gynecology Physician
  • Buffalo, NY
  • NPI 1659396380
  NPD

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

{
    "created_epoch": "1146528000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1629036454",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 8000",
            "address_2": "DEPT. 173",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142670002",
            "telephone_number": "716-692-3302",
            "fax_number": "716-692-4342"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "565 ABBOTT RD",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142202039",
            "telephone_number": "716-826-7000",
            "fax_number": "716-692-4342"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAZARIEGOS",
        "first_name": "JUAN",
        "middle_name": "D",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-02",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "NY",
            "license": "176502",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Thomas Mayo
• Kasimu Mayundo, M.A
• Claire Emilia Maywalt, PA
• Kimberly Mazanka, RDH
• Idalma Mazariegos de Leon
• Christine C. Mazgaj, M.A. CCC/SLP/L
• Katelyn Elizabeth Mazgaj, NP
• Shana Mazgaj, FNP
• Mir Mazhar, M.D.
• Thomas Maziarz

• Specialist in Buffalo, NY
• Providers in Buffalo, NY by specialty
• Specialist in New York

• 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.