# Larry Madsen, DDS · NPI 1689860579

Periodontics · San Leandro, CA · NPI 1689860579

Larry Madsen, DDS (NPI 1689860579) is listed in the NPPES registry with the specialty Periodontics in San Leandro, CA, phone (510) 352-2111, as of the registry file of Jun 8, 2026.

Profile: https://www.gale.care/providers/ca/san-leandro/larry-madsen-dds-1689860579
Facts changed: 2026-10-22 · hash 8b0247fe83799495

## Facts

- Name: Larry Madsen (NPPES registry, self-reported, 2026-06-08) {#name}
- Credential: DDS (NPPES registry, self-reported, 2026-06-08) {#credential}
- Specialty: Periodontics (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: sole-proprietor (NPPES registry, self-reported, 2026-06-08) {#practice-type}
- City: San Leandro (NPPES registry, self-reported, 2026-06-08) {#city}
- State: CA (NPPES registry, self-reported, 2026-06-08) {#state}
- Phone: (510) 352-2111 (NPPES registry, self-reported, 2026-06-08) {#phone}
- Insurance: Not listed by AIDS Healthcare Foundation (PHP) for Larry Madsen, DDS (NPI 1689860579) in AIDS Healthcare Foundation (PHP)'s directory, file of Sep 19, 2026. That is not a no. {#ins-not-listed-ahf-fhir-directory}
- Insurance: Not listed by Blue Shield of California for Larry Madsen, DDS (NPI 1689860579) in Blue Shield of California's directory, file of Oct 22, 2026. That is not a no. {#ins-not-listed-bsc-fhir-directory}
- Insurance: Not listed by CalOptima Health for Larry Madsen, DDS (NPI 1689860579) in CalOptima Health's directory, file of Oct 11, 2026. That is not a no. {#ins-not-listed-caloptima-fhir-directory}
- Insurance: Not listed by Central California Alliance for Health for Larry Madsen, DDS (NPI 1689860579) in Central California Alliance for Health's directory, file of Oct 22, 2026. That is not a no. {#ins-not-listed-ccah-fhir-directory}
- Insurance: Not listed by Original Medicare for Larry Madsen, DDS (NPI 1689860579) in CMS Medicare clinicians file, file of Oct 2, 2026. That is not a no. {#ins-not-listed-cms-medicare-clinicians}
- Insurance: Not listed by Medi-Cal fee-for-service for Larry Madsen, DDS (NPI 1689860579) in DHCS Medi-Cal fee-for-service enrolment file, file of Oct 19, 2026. That is not a no. {#ins-not-listed-dhcs-ffs-enrolled-2026-10-19}
- Insurance: Not listed by Gold Coast Health Plan for Larry Madsen, DDS (NPI 1689860579) in Gold Coast Health Plan's directory, file of Oct 9, 2026. That is not a no. {#ins-not-listed-goldcoast-fhir-directory}
- Insurance: Not listed by Health Net for Larry Madsen, DDS (NPI 1689860579) in Health Net's directory, file of Oct 22, 2026. That is not a no. {#ins-not-listed-healthnet-fhir-directory}
- Insurance: Not listed by Health Plan of San Joaquin for Larry Madsen, DDS (NPI 1689860579) in Health Plan of San Joaquin's directory, file of Oct 2, 2026. That is not a no. {#ins-not-listed-hpsj-fhir-directory}
- Insurance: Not listed by Inland Empire Health Plan (IEHP) for Larry Madsen, DDS (NPI 1689860579) in Inland Empire Health Plan (IEHP)'s directory, file of Oct 16, 2026. That is not a no. {#ins-not-listed-iehp-fhir-directory}
- Insurance: Not listed by Kern Family Health Care for Larry Madsen, DDS (NPI 1689860579) in Kern Family Health Care's directory, file of Oct 9, 2026. That is not a no. {#ins-not-listed-kern-fhir-directory}
- Insurance: Not listed by L.A. Care Health Plan for Larry Madsen, DDS (NPI 1689860579) in L.A. Care Health Plan's directory, file of Oct 19, 2026. That is not a no. {#ins-not-listed-lacare-fhir-directory}
- Insurance: Not listed by Partnership HealthPlan of California for Larry Madsen, DDS (NPI 1689860579) in Partnership HealthPlan of California's directory, file of Oct 16, 2026. That is not a no. {#ins-not-listed-partnership-fhir-directory}
- Insurance: Not listed by San Francisco Health Plan for Larry Madsen, DDS (NPI 1689860579) in San Francisco Health Plan's directory, file of Oct 1, 2026. That is not a no. {#ins-not-listed-sfhp-fhir-directory}

## Answers

- New patients (not on record): Gale has no record of whether Larry Madsen, DDS (NPI 1689860579) is taking new patients. Ask the office.
- Insurance (not listed, which is not a no): Not listed by AIDS Healthcare Foundation (PHP), Blue Shield of California, CalOptima Health, Central California Alliance for Health, Gold Coast Health Plan, Health Net, Health Plan of San Joaquin, Inland Empire Health Plan (IEHP), Kern Family Health Care, L.A. Care Health Plan, Medi-Cal fee-for-service, Original Medicare, Partnership HealthPlan of California or San Francisco Health Plan for Larry Madsen, DDS (NPI 1689860579), in the files Gale read for California on Oct 23, 2026. That is not a no. Ask the office.
- First-visit cost (not on record): Gale has no record of what a first visit with Larry Madsen, DDS (NPI 1689860579) 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 Larry Madsen, DDS (NPI 1689860579) offers video visits. Ask the office.
- Where (self-reported): Larry Madsen, DDS (NPI 1689860579) is listed in San Leandro, 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 Larry Madsen, DDS (NPI 1689860579) sees. Ask the office.
- What they help with (not on record): Gale has no record of what Larry Madsen, DDS (NPI 1689860579) helps with beyond the registry specialty. Ask the office.
- Languages (not on record): Gale has no record of the languages Larry Madsen, DDS (NPI 1689860579) speaks. Ask the office.
- How to book (self-reported): Call (510) 352-2111, the practice phone the NPPES registry lists for Larry Madsen, DDS (NPI 1689860579) (Jun 8, 2026).
- Next opening (not on record): Gale has no record of the next opening for Larry Madsen, DDS (NPI 1689860579). Ask the office.

## Sources

- NPPES registry (CMS): file of 2026-06-08 · https://npiregistry.cms.hhs.gov/provider-view/1689860579
- 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
- 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

## 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