Mark Alyn Montgomery, LPC, LISAC

Primary specialty

Addiction (Substance Use Disorder) CounselorTaxonomy code 101YA0400X

License

LISAC-1677 Issued in AZ

Practice address

4554 E. Inverness Ave., C-108
Mesa, AZ 85206-4639

Phone

(480) 330-5031

Fax

(480) 926-2326

NPI assigned

Nov 1, 2006

Last updated

Sep 11, 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 2

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1162339200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1851478564",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4554 E INVERNESS AVE # C-108",
            "city": "MESA",
            "state": "AZ",
            "postal_code": "852064639",
            "telephone_number": "480-330-5031",
            "fax_number": "480-926-2326"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4554 E. INVERNESS AVE., C-108",
            "city": "MESA",
            "state": "AZ",
            "postal_code": "852064639",
            "telephone_number": "480-330-5031",
            "fax_number": "480-926-2326"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MONTGOMERY",
        "first_name": "MARK",
        "middle_name": "ALYN",
        "name_prefix": "Mr.",
        "credential": "LPC, LISAC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-11-01",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "AZ",
            "license": "LISAC-1677",
            "primary": true
        },
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "AZ",
            "license": "LPC-2087",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSED PROF. COUNSELOR",
            "identifier": "LPC-2087",
            "state": "AZ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LIC. IND. SUB. ABUSE COUN",
            "identifier": "LISAC-1677",
            "state": "AZ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Dayana Montero
• Sheila Montero
• Matthew Montes de Oca
• Karyme Montes, RBT
• Cindy La-Tische Montgomery, LPC
• George Montiel
• Sarah E Montiel
• Stephen Lyle Montierth, P.T.
• Carra Montijo, PNP/FNP
• Tyanna K Montijo, AGACNP-BC

• Addiction (Substance Use Disorder) Counselor in Mesa, AZ
• Providers in Mesa, AZ by specialty
• Addiction (Substance Use Disorder) Counselor in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.