# Christina Walker, PsyD · NPI 1326223587

Psychologist · Corte Madera, CA · NPI 1326223587

Christina Walker, PsyD (NPI 1326223587) is listed in the NPPES registry with the specialty Psychologist in Corte Madera, CA, phone (415) 886-7062, as of the registry file of Jun 8, 2026.

Profile: https://www.gale.care/providers/ca/corte-madera/christina-walker-psyd-1326223587
Facts changed: 2026-10-23 · hash 3fb6df0974522d04

## Facts

- Name: Christina Walker (NPPES registry, self-reported, 2026-06-08) {#name}
- Credential: PsyD (NPPES registry, self-reported, 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: 2008 (NPPES registry, listed, 2026-06-08) {#npi-issued}
- Practice type: sole-proprietor (NPPES registry, self-reported, 2026-06-08) {#practice-type}
- City: Corte Madera (NPPES registry, self-reported, 2026-06-08) {#city}
- State: CA (NPPES registry, self-reported, 2026-06-08) {#state}
- Phone: (415) 886-7062 (NPPES registry, self-reported, 2026-06-08) {#phone}
- Insurance: Listed: CMS Medicare opt-out list lists Christina Walker, PsyD (NPI 1326223587) as opted out of Original Medicare from Apr 1, 2016 to Apr 1, 2028 (record dated Apr 16, 2026, file of Sep 15, 2026). Medicare does not pay an opted-out clinician; you can still see them under a private contract and pay them directly. Gale checked 2 listings in this file by hand on Oct 22, 2026; none were wrong. {#ins-medicare-medicare}
- Insurance: Not listed by AIDS Healthcare Foundation (PHP) Medi-Cal plans for Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Health Net commercial plans for Christina Walker, PsyD (NPI 1326223587) in Health Net's directory, file of Oct 22, 2026. That is not a no. {#ins-healthnet-commercial}
- Insurance: Not listed by Ambetter from Health Net individual and family plans for Christina Walker, PsyD (NPI 1326223587) in Health Net's directory, file of Oct 22, 2026. That is not a no. {#ins-healthnet-marketplace}
- Insurance: Not listed by Health Net Medi-Cal plans for Christina Walker, PsyD (NPI 1326223587) in Health Net's directory, file of Oct 22, 2026. That is not a no. {#ins-healthnet-medi-cal}
- Insurance: Not listed by Wellcare by Health Net Medicare Advantage plans for Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) in San Francisco Health Plan's directory, file of Oct 1, 2026. That is not a no. {#ins-sfhp-medi-cal}
- Insurance: Not listed by VA Community Care for Christina Walker, PsyD (NPI 1326223587) in VA's community care locator, file of Oct 22, 2026. That is not a no. {#ins-va-va}

## Answers

- New patients (not on record): Gale has no record of whether Christina Walker, PsyD (NPI 1326223587) is taking new patients. Ask the office.
- Insurance (listed): Listed: CMS Medicare opt-out list lists Christina Walker, PsyD (NPI 1326223587) as opted out of Original Medicare from Apr 1, 2016 to Apr 1, 2028 (record dated Apr 16, 2026, file of Sep 15, 2026). Medicare does not pay an opted-out clinician; you can still see them under a private contract and pay them directly. Gale checked 2 listings in this file by hand on Oct 22, 2026; none were wrong.
- First-visit cost (not on record): Gale has no record of what a first visit with Christina Walker, PsyD (NPI 1326223587) 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 Christina Walker, PsyD (NPI 1326223587) offers video visits. Ask the office.
- Where (self-reported): Christina Walker, PsyD (NPI 1326223587) is listed in Corte Madera, 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 Christina Walker, PsyD (NPI 1326223587) sees. Ask the office.
- What they help with (not on record): Gale has no record of what Christina Walker, PsyD (NPI 1326223587) helps with beyond the registry specialty. Ask the office.
- Languages (not on record): Gale has no record of the languages Christina Walker, PsyD (NPI 1326223587) speaks. Ask the office.
- How to book (self-reported): Call (415) 886-7062, the practice phone the NPPES registry lists for Christina Walker, PsyD (NPI 1326223587) (Jun 8, 2026).
- Next opening (not on record): Gale has no record of the next opening for Christina Walker, PsyD (NPI 1326223587). Ask the office.

## Sources

- NPPES registry (CMS): file of 2026-06-08 · https://npiregistry.cms.hhs.gov/provider-view/1326223587
- 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 opt-out list: file of 2026-09-15 · https://data.cms.gov/provider-characteristics/medicare-provider-supplier-enrollment/opt-out-affidavits · Gale checked 2 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