Mark Allen Williams, PMHNP-BC

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

AP-263407 Issued in AZ

Practice address

2120 W Guadalupe Rd Ste 6
Mesa, AZ 85202-7366

Phone

(602) 230-7373

Fax

(480) 628-8577

NPI assigned

Sep 1, 2021

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

Medicare fee-for-service enrollment

Enrolled in AZ

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Denova Collaborative Health, LLCGroup PAC ID 2466437736, 141 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: denova.markwilliams@141317.advancedmd-direct.com

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

• Denova Collaborative Health, LLC

  • Multi-Specialty Clinic/Center
  • Phoenix, AZ
  • NPI 1609300854
  Medicare reassignment Care Compare group NPD
• Denova Collaborative Health, LLC

  • Multi-Specialty Clinic/Center
  • Peoria, AZ
  • NPI 1740079060
  NPD
• Denova Collaborative Health, LLC

  dba Denova Collaborative Health

  • Multi-Specialty Clinic/Center
  • Phoenix, AZ
  • NPI 1982777462
  NPD
• Denova Collaborative Health, LLC

  • Multi-Specialty Clinic/Center
  • Phoenix, AZ
  • NPI 1710283593
  NPD (past)

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

{
    "created_epoch": "1630454400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765497600000",
    "number": "1023786225",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3101 N CENTRAL AVE STE 550",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850122635",
            "telephone_number": "602-230-7373",
            "fax_number": "602-682-7455"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2120 W GUADALUPE RD STE 6",
            "city": "MESA",
            "state": "AZ",
            "postal_code": "852027366",
            "telephone_number": "602-230-7373",
            "fax_number": "480-628-8577"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3033 N Central Ave Ste 700",
            "address_purpose": "LOCATION",
            "city": "Phoenix",
            "state": "AZ",
            "postal_code": "850122806",
            "country_code": "US",
            "telephone_number": "602-230-7373",
            "fax_number": "602-257-8029",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "MARK",
        "middle_name": "ALLEN",
        "credential": "PMHNP-BC",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-09-01",
        "last_updated": "2025-12-12",
        "certification_date": "2025-12-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "AZ",
            "license": "RNP263407",
            "primary": false
        },
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "AZ",
            "license": "AP-263407",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kalyn Williams, RDN
• Kerry Rae Williams
• Latice Williams
• Latonya R Williams
• Mallery Williams
• Michael James Williams, DPT
• Michelle Williams, RBT
• Nathan Williams
• Nicole Williams
• Nicole Briana Williams, OTD, OTR/L

• Psychiatric/Mental Health Nurse Practitioner in Mesa, AZ
• Providers in Mesa, AZ by specialty
• Psychiatric/Mental Health Nurse Practitioner in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 12, 2025; 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.