# Diane Dumas · NPI 1013036599

Psychologist · San Marcus, CA · NPI 1013036599

Diane Dumas (NPI 1013036599) is listed in the NPPES registry with the specialty Psychologist in San Marcus, CA, phone (760) 598-8223, as of the registry file of Jun 8, 2026.

Profile: https://www.gale.care/providers/ca/san-marcus/diane-dumas-1013036599
Facts changed: 2026-10-23 · hash a765e85d99f01a51

## Facts

- Name: Diane Dumas (NPPES registry, self-reported, 2026-06-08) {#name}
- Credential: none on record (NPPES registry, not listed, which is not a no, 2026-06-08) {#credential}
- Specialty: Psychologist (NPPES registry, self-reported, 2026-06-08) {#specialty}
- Registry stage: as-listed (NPPES registry, self-reported, 2026-06-08) {#registry-stage}
- NPI issued: 2007 (NPPES registry, listed, 2026-06-08) {#npi-issued}
- Practice type: not-sole-proprietor (NPPES registry, self-reported, 2026-06-08) {#practice-type}
- City: San Marcus (NPPES registry, self-reported, 2026-06-08) {#city}
- State: CA (NPPES registry, self-reported, 2026-06-08) {#state}
- Phone: (760) 598-8223 (NPPES registry, self-reported, 2026-06-08) {#phone}
- New patients: yes (VA's community care locator, listed, 2026-10-22) {#new-patients}
- Insurance: Listed: Health Net's directory listed Diane Dumas (NPI 1013036599) for Health Net Medi-Cal plans on Oct 17, 2026. Gale checked 12 listings in this directory by hand on Oct 22, 2026; 6 were wrong, so confirm with the office. {#ins-healthnet-medi-cal}
- Insurance: Listed: CMS Medicare clinicians file listed Diane Dumas (NPI 1013036599) for Original Medicare on Oct 2, 2026. Gale checked 23 listings in this file by hand on Oct 22, 2026; none were wrong. {#ins-medicare-medicare}
- Insurance: Listed: VA's community care locator listed Diane Dumas (NPI 1013036599) for VA Community Care on Oct 22, 2026. {#ins-va-va}
- Insurance: Not listed by AIDS Healthcare Foundation (PHP) Medi-Cal plans for Diane Dumas (NPI 1013036599) in AIDS Healthcare Foundation (PHP)'s directory, file of Sep 19, 2026. That is not a no. {#ins-ahf-medi-cal}
- Insurance: Not listed by AIDS Healthcare Foundation (PHP) Medicare Advantage plans for Diane Dumas (NPI 1013036599) in AIDS Healthcare Foundation (PHP)'s directory, file of Sep 15, 2026. That is not a no. {#ins-ahf-medicare-advantage}
- Insurance: Not listed by Blue Shield of California commercial plans for Diane Dumas (NPI 1013036599) in Blue Shield of California's directory, file of Oct 22, 2026. That is not a no. {#ins-bsc-commercial}
- Insurance: Not listed by Blue Shield of California individual and family plans for Diane Dumas (NPI 1013036599) in Blue Shield of California's directory, file of Oct 22, 2026. That is not a no. {#ins-bsc-marketplace}
- Insurance: Not listed by Blue Shield of California Promise Health Plan Medi-Cal plans for Diane Dumas (NPI 1013036599) in Blue Shield of California's directory, file of Oct 22, 2026. That is not a no. {#ins-bsc-medi-cal}
- Insurance: Not listed by Blue Shield of California Medicare Advantage plans for Diane Dumas (NPI 1013036599) in Blue Shield of California's directory, file of Oct 22, 2026. That is not a no. {#ins-bsc-medicare-advantage}
- Insurance: Not listed by CalOptima Health Medi-Cal plans for Diane Dumas (NPI 1013036599) in CalOptima Health's directory, file of Oct 11, 2026. That is not a no. {#ins-caloptima-medi-cal}
- Insurance: Not listed by CalViva Health Medi-Cal plans for Diane Dumas (NPI 1013036599) in Health Net's directory, file of Oct 21, 2026. That is not a no. {#ins-calviva-medi-cal}
- Insurance: Not listed by Central California Alliance for Health Medi-Cal plans for Diane Dumas (NPI 1013036599) in Central California Alliance for Health's directory, file of Oct 22, 2026. That is not a no. {#ins-ccah-medi-cal}
- Insurance: Not listed by Gold Coast Health Plan Medi-Cal plans for Diane Dumas (NPI 1013036599) in Gold Coast Health Plan's directory, file of Oct 9, 2026. That is not a no. {#ins-goldcoast-medi-cal}
- Insurance: Not listed by Ambetter from Health Net individual and family plans for Diane Dumas (NPI 1013036599) in Health Net's directory, file of Oct 22, 2026. That is not a no. {#ins-healthnet-marketplace}
- Insurance: Not listed by Wellcare by Health Net Medicare Advantage plans for Diane Dumas (NPI 1013036599) in Health Net's directory, file of Oct 22, 2026. That is not a no. {#ins-healthnet-medicare-advantage}
- Insurance: Not listed by Health Plan of San Joaquin Medi-Cal plans for Diane Dumas (NPI 1013036599) in Health Plan of San Joaquin's directory, file of Oct 2, 2026. That is not a no. {#ins-hpsj-medi-cal}
- Insurance: Not listed by Humana Medicare Advantage plans for Diane Dumas (NPI 1013036599) in Humana's directory, file of Oct 23, 2026. That is not a no. {#ins-humana-medicare-advantage}
- Insurance: Not listed by Inland Empire Health Plan (IEHP) individual and family plans for Diane Dumas (NPI 1013036599) in Inland Empire Health Plan (IEHP)'s directory, file of Jul 27, 2026. That is not a no. {#ins-iehp-marketplace}
- Insurance: Not listed by Inland Empire Health Plan (IEHP) Medi-Cal plans for Diane Dumas (NPI 1013036599) in Inland Empire Health Plan (IEHP)'s directory, file of Jul 29, 2026. That is not a no. {#ins-iehp-medi-cal}
- Insurance: Not listed by Inland Empire Health Plan (IEHP) Medicare Advantage plans for Diane Dumas (NPI 1013036599) in Inland Empire Health Plan (IEHP)'s directory, file of Oct 16, 2026. That is not a no. {#ins-iehp-medicare-advantage}
- Insurance: Not listed by Kern Family Health Care Medi-Cal plans for Diane Dumas (NPI 1013036599) in Kern Family Health Care's directory, file of Oct 9, 2026. That is not a no. {#ins-kern-medi-cal}
- Insurance: Not listed by L.A. Care Health Plan Medi-Cal plans for Diane Dumas (NPI 1013036599) in L.A. Care Health Plan's directory, file of Oct 19, 2026. That is not a no. {#ins-lacare-medi-cal}
- Insurance: Not listed by Medi-Cal fee-for-service for Diane Dumas (NPI 1013036599) in DHCS Medi-Cal fee-for-service enrolment file, file of Oct 19, 2026. That is not a no. {#ins-medi-cal-ffs-medi-cal}
- Insurance: Not listed by Partnership HealthPlan of California Medi-Cal plans for Diane Dumas (NPI 1013036599) in Partnership HealthPlan of California's directory, file of Oct 16, 2026. That is not a no. {#ins-partnership-medi-cal}
- Insurance: Not listed by San Francisco Health Plan Medi-Cal plans for Diane Dumas (NPI 1013036599) in San Francisco Health Plan's directory, file of Oct 1, 2026. That is not a no. {#ins-sfhp-medi-cal}

## Answers

- New patients (listed): VA's community care locator listed Diane Dumas (NPI 1013036599) as taking new patients on Oct 22, 2026.
- Insurance (listed): Listed for Diane Dumas (NPI 1013036599): Health Net, Medi-Cal (Oct 17, 2026); Original Medicare (Oct 2, 2026); VA Community Care (Oct 22, 2026). Each listing names its source and date.
- First-visit cost (not on record): Gale has no record of what a first visit with Diane Dumas (NPI 1013036599) costs. Paying yourself? You can ask for a written Good Faith Estimate before the visit.
- Video visits (not on record): Gale has no record of whether Diane Dumas (NPI 1013036599) offers video visits. Ask the office.
- Where (self-reported): Diane Dumas (NPI 1013036599) is listed in San Marcus, CA by the NPPES registry, as of the registry file of Jun 8, 2026.
- Who they see (not on record): Gale has no record of who Diane Dumas (NPI 1013036599) sees. Ask the office.
- What they help with (not on record): Gale has no record of what Diane Dumas (NPI 1013036599) helps with beyond the registry specialty. Ask the office.
- Languages (not on record): Gale has no record of the languages Diane Dumas (NPI 1013036599) speaks. Ask the office.
- How to book (self-reported): Call (760) 598-8223, the practice phone the NPPES registry lists for Diane Dumas (NPI 1013036599) (Jun 8, 2026).
- Next opening (not on record): Gale has no record of the next opening for Diane Dumas (NPI 1013036599). Ask the office.

## Sources

- NPPES registry (CMS): file of 2026-06-08 · https://npiregistry.cms.hhs.gov/provider-view/1013036599
- AIDS Healthcare Foundation (PHP)'s directory: file of 2026-09-19
- Blue Shield of California's directory: file of 2026-10-22 · Gale checked 60 listings in this directory by hand on Oct 22, 2026; 23 were wrong, so confirm with the office.
- CalOptima Health's directory: file of 2026-10-11 · Gale checked 12 listings in this directory by hand on Oct 22, 2026; 4 were wrong, so confirm with the office.
- Central California Alliance for Health's directory: file of 2026-10-22
- CMS Medicare clinicians file: file of 2026-10-02 · Gale checked 23 listings in this file by hand on Oct 22, 2026; none were wrong.
- DHCS Medi-Cal fee-for-service enrolment file: file of 2026-10-19
- Gold Coast Health Plan's directory: file of 2026-10-09
- Health Net's directory: file of 2026-10-22 · Gale checked 12 listings in this directory by hand on Oct 22, 2026; 6 were wrong, so confirm with the office.
- Health Plan of San Joaquin's directory: file of 2026-10-02
- Humana's directory: file of 2026-10-23
- Inland Empire Health Plan (IEHP)'s directory: file of 2026-10-16 · Gale checked 12 listings in this directory by hand on Oct 22, 2026; 4 were wrong, so confirm with the office.
- Kern Family Health Care's directory: file of 2026-10-09
- L.A. Care Health Plan's directory: file of 2026-10-19 · Gale checked 12 listings in this directory by hand on Oct 22, 2026; 4 were wrong, so confirm with the office.
- Partnership HealthPlan of California's directory: file of 2026-10-16
- San Francisco Health Plan's directory: file of 2026-10-01
- VA's community care locator: file of 2026-10-22

## About these facts

- Status words: How each fact is known. confirmed = Listed: a named directory, CMS file or state file lists it. inferred = Likely: a price file suggests it; a likely match is a lead, not a listing. self-reported: the clinician said it, to the NPPES registry or on Gale. not-listed: a source that lists every clinician it covers was read and does not list this one; that is not a no. unknown: no record; ask the office.
- Dates: The date the source gives this record (YYYY-MM-DD). It is not the date of the event the record describes: an opt-out states its own start and end dates in its sentence.
- Hash: Changes only when a fact changes, never on a re-check.

This provider is not affiliated with Gale. This listing is compiled from the NPPES public registry (CMS).
Terms: https://www.gale.care/agents#terms