Diaz Psychological & Forensic Services, PLLC is a Psychologist (organization) practicing in Phoenix, Arizona. The National Provider Identifier (NPI) is #1164364204, which was assigned on April 7, 2026, and the registration record was last updated on April 7, 2026. The practitioner's main practice location is at 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639; the contact telephone number is 4803828860. The primary taxonomy of Diaz Psychological & Forensic Services, PLLC is Psychologist (103T00000X). The authorized official for Diaz Psychological & Forensic Services, PLLC is Dr. Desyre Diaz (Psychologist).
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
| NPI | 1164364204 |
| Entity Type | Organization |
| Organization Name | DIAZ PSYCHOLOGICAL & FORENSIC SERVICES, PLLC |
| Provider Name | DIAZ PSYCHOLOGICAL & FORENSIC SERVICES, PLLC |
| Practice Address |
4539 N 22nd St Ste R Phoenix AZ 85016-4639 |
| Practice Telephone | 4803828860 |
| Mailing Address |
4539 N 22nd St Ste R Phoenix AZ 85016-4639 |
| Certification Date | 2026-04-07 |
| Enumeration Date | 2026-04-07 |
| Last Update Date | 2026-04-07 |
| Is Organization Subpart | N |
| Official Name | DR. DESYRE DIAZ |
| Official Title | PSYCHOLOGIST |
| Credential | PSYD |
| Telephone | 4803828860 |
| Primary | Code | Classification | Specialization | Taxonomy Group | License Number | License State |
|---|---|---|---|---|---|---|
| Y | 103T00000X | Psychologist | 193400000X SINGLE SPECIALTY GROUP |
| Code | 103T00000X |
| Taxonomy | Psychologist |
| Classification | Psychologist |
| Grouping | Behavioral Health & Social Service Providers |
| Definition: A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public. |
| Notes: Source: American Psychological Association [1/1/2007: modified definition] |
| Provider Name | Address | Taxonomy | Enumeration Date |
|---|---|---|---|
| Soar Health Inc | 1717 Pennsylvania Ave Nw Ste 1025, Washington, DC 20006-3951 | Psychologist | 2026-04-09 |
| Andrew Ryan Devendorf | 4801 Rainier Ave S, Seattle, WA 98118-2181 | Psychologist | 2026-04-10 |
| Skaggs Community Hospital Association | 525 Branson Landing Blvd Ste 219a, Branson, MO 65616-2052 | Psychologist | 2026-04-10 |
| Solace Health Medical Group, Inc. | 221 River St Ste 9, Hoboken, NJ 07030-5990 | Psychologist | 2026-04-07 |
| Megan Elizabeth Slagel | 33 Medical Center Dr, Morgantown, WV 26505-4024 | Psychologist | 2026-04-08 |
| Lauren Mcclintock | 2738 General Pershing St, New Orleans, LA 70115-6226 | Psychologist | 2026-04-06 |
| Lesliefer Rivera-Delgado | Cj31 Calle 147, Carolina, PR 00983-2036 | Psychologist | 2026-04-11 |
| Mithila Mahesh | 8201 164th Ave Ne Ste 200, Redmond, WA 98052-7615 | Psychologist | 2026-04-07 |
| Castle Counseling, LLC | 637 Goose Neck Dr, Lititz, PA 17543-8368 | Psychologist | 2026-04-09 |
| Michelle Cortes | 2 Calle Julian Blanco Sosa, Mayaguez, PR 00682-2418 | Psychologist | 2026-04-07 |
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| Street Address |
4539 N 22ND ST STE R |
| City | PHOENIX |
| State | AZ |
| Zip Code | 85016-4639 |
| Country | US |
| Provider Name | Address | Taxonomy | Enumeration Date |
|---|---|---|---|
| Sincere Residential Services Ltd. | 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639 | In Home Supportive Care Agency | 2026-02-11 |
| Lakeside Aba Az LLC | 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639 | Home Health Agency | 2025-09-26 |
| Bright Path Lba LLC | 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639 | Behavioral Analyst | 2025-11-10 |
| The Healer Psychiatry, PLLC | 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639 | Psychiatric/Mental Health Nurse Practitioner | 2025-12-11 |
| Convini Care LLC | 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639 | Home Health Agency | 2025-11-06 |
| Kim E Letendre | 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639 | Mental Health Counselor | 2025-11-14 |
| Adrianne D Williams | 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639 | Social Worker | 2026-01-07 |
| Horizon Manor LLC | 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639 | Contractor | 2026-03-05 |
| Seth Gehrking | 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639 | Clinical Social Worker | 2026-02-16 |
| Longarc Medicine PLLC | 4539 N 22nd St Ste R, Phoenix, AZ 85016-4639 | General Practice Physician | 2025-10-27 |
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| Provider Name | Address | Taxonomy | Enumeration Date |
|---|---|---|---|
| Blossoming Hearts Home Care | 4539 N 22nd St Ste N5109, Phoenix, AZ 85016-4639 | Meals Provider | 2026-01-01 |
| Ari Claimcare LLC | 4539 N 22nd St # 8229, Phoenix, AZ 85016-4639 | Durable Medical Equipment & Medical Supplies | 2026-02-25 |
| Bb Psychotherapy LLC | 4539 N 22nd St # 5130, Phoenix, AZ 85016-4639 | Clinical Social Worker | 2025-11-11 |
| Keep Rising Therapy LLC | 4539 N 22nd St Ste 5115, Phoenix, AZ 85016-4639 | Adult Mental Health Clinic/Center | 2026-01-27 |
| Alexis Tully, Lcsw, PLLC | 4539 N 22nd St # 5343, Phoenix, AZ 85016-4639 | Clinical Social Worker | 2025-10-02 |
| Homecare Inc | 4539 N 22nd St Ste N, Phoenix, AZ 85016-4639 | Transportation Broker | 2026-04-11 |
| Raina So Counseling LLC | 4539 N 22nd St # 8199, Phoenix, AZ 85016-4639 | Marriage & Family Therapist | 2026-01-13 |
| Rusticas Home Care LLC | 4539 N 22nd St Ste 6339, Phoenix, AZ 85016-4639 | In Home Supportive Care Agency | 2026-04-03 |
| Quail Spirit Wellness LLC | 4539 N 22nd St Ste A, Phoenix, AZ 85016-4639 | Clinical Social Worker | 2026-01-21 |
| Sanoran Lab Services LLC | 4539 N 22nd St # 8001, Phoenix, AZ 85016-4639 | Clinical Medical Laboratory | 2026-03-05 |
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| Provider Name | Address | Taxonomy | Enumeration Date |
|---|---|---|---|
| Karen Roberts | 5343 N 1612 St Suite 270, Phoenix, AZ 85016 | Home Health Registered Nurse | 2025-08-05 |
| The Healthy Place PLLC | 2942 N 24th St. Ste 115, Pmb 818048, Phoenix, AZ 85016 | Physician Assistant | 2025-08-01 |
| Caroline Rivera | 5343 N 16th St Suite 270, Phoenix, AZ 85016 | Home Health Registered Nurse | 2025-08-05 |
| Virginia Hirschey | 4501 N 22nd St Ste 250, Phoenix, AZ 85016-0602 | Marriage & Family Therapist | 2026-03-07 |
| Lumecore Psychiatry PLLC | 4742 N 24th Street, Suite 300, Phoenix, AZ 85016 | Psychiatric/Mental Health Nurse Practitioner | 2025-08-01 |
| Jennifer Everhart | 5343 N 16th St. Suite 270, Phoenix, AZ 85016 | Licensed Practical Nurse | 2025-10-17 |
| Jonathan A Krakoff | 4212 North 16th Street, Phoenix, AZ 85016 | Endocrinology, Diabetes & Metabolism Physician | 2006-05-03 |
| Katherine Adams | 5343 N. 16th St. Suite 270, Phoenix, AZ 85016 | Home Health Aide | 2025-08-11 |
| Ryan Elizabeth T Johnson | 4501 N 22nd St Ste 250, Phoenix, AZ 85016-0602 | Marriage & Family Therapist | 2013-06-25 |
| Merita Page | 5343 N. 16th St. Suite 270, Phoenix, AZ 85016 | Licensed Practical Nurse | 2025-08-04 |
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| Provider Name | Address | Taxonomy | Enumeration Date |
|---|---|---|---|
| Gray's Psychological Services, PLLC/Dba: Brighter Beginnings Psychological Services | 1635 Union Center Maine Hwy Ste 205, Endicott, NY 13760-1340 | Clinical Psychologist | 2025-11-19 |
| Kjl Psychological Services PLLC | 77 W Washington St Ste 1506, Chicago, IL 60602-3220 | Community/Behavioral Health Agency | 2026-03-19 |
| Sheffer Psychological Services, PLLC | 1590 S Milwaukee Ave Ste 309, Libertyville, IL 60048-3786 | Clinical Psychologist | 2018-01-29 |
| Ellison Psychological Services PLLC | 34 Myrtle St, Belmont, NC 28012-5200 | Psychologist | 2025-11-26 |
| New Horizons Psychological Associates PLLC | 105 Gott Road, Princeton, WV 24740-2103 | Addiction (Substance Use Disorder) Counselor | 2007-05-22 |
| Lenger Psychological Services, PLLC | 1 Glenwood Ave, Raleigh, NC 27603-2578 | Clinical Psychologist | 2025-08-09 |
| Changes Psychological Services, PLLC | 1629 K St Nw Ste 300, Washington, DC 20006-1631 | Clinical Psychologist | 2016-10-05 |
| Ct Psychological PLLC | 107 Wilcox Rd Ste 107f, Stonington, CT 06378-2614 | Mental Health Clinic/Center (Including Community Mental Health Center) | 2026-04-10 |
| Divergent Psychological Assessment, PLLC | 6136 Frisco Square Blvd Ste 400487a, Frisco, TX 75034-3246 | Psychologist | 2024-12-09 |
| Tobin Psychological PLLC | 50 Charlton Rd, Ballston Spa, NY 12020-3509 | Clinical Psychologist | 2025-11-18 |
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This dataset includes over five million health care providers who are assigned National Provider Identifier (NPI) in the National Plan and Provider Enumeration System (NPPES), developed by the Centers for Medicare & Medicaid Services (CMS). Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under Health Insurance Portability and Accountability Act (HIPAA). Each provider is registered with the NPI, full name, status, address, taxonomy, other identifiers, etc.
| Subject | Transparency and Disclosure |
| Jurisdiction | Federal |
| Data Provider | National Plan and Provider Enumeration System (NPPES), by the Centers for Medicare & Medicaid Services (CMS) |
| Source | download.cms.gov |
The National Provider Identifier (NPI) is a Health Insurance Portability and Accountability Act (HIPAA) Administrative Simplification Standard. The NPI is a unique identification number for covered health care providers and all health plans and health care clearinghouses, who must use the NPIs in the administrative and financial transactions adopted under HIPAA. The NPI is a 10-position, intelligence-free numeric identifier (10-digit number). All health care providers who are HIPAA-covered entities, whether individuals or organizations, must get an NPI. A HIPAA-covered entity is a health care provider that conducts certain transactions in electronic form, or a health care clearinghouse, or a health plan (including commercial plans, Medicare, and Medicaid). Centers for Medicare & Medicaid Services (CMS) has developed the National Plan and Provider Enumeration System (NPPES) to assign unique identifiers to health care providers. The National Provider Indentifier (NPI) has been the standard identifier for all HIPAA-covered entities (health care providers) since May 23, 2007. Small health plans were required to obtain and use an NPI by May 23, 2008. This dataset includes over five million health care providers (individuals and organizations) who are assigned NPI. The provider data elements are disclosed to the public by the Centers for Medicare & Medicaid Services (CMS) under the Freedom of Information Act (FOIA), as listed in the NPPES Data Dissemination Notice (CMS-6060-N). The NPI final rules define the following elements which required to be disclosed as determined by Department of Health & Human Services (HHS): NPI, Entity Type, Provider Name, Credential, Business Mailing Address, Business Location Address, Healthcare Provider Taxonomy Code, Other Provider Identifier, Provider Enumeration Date, NPI Deactivation Date, Provider License Number, Authorized Official Name and Contact Information. |