DR. ALEXANDER SAUL CARDENAS M.D
NPI 1720342116
Psychiatry & Neurology - Psychiatry in San Mateo, CA

Active since June 29, 2012PECOS EnrolledAccepts Medicare Assignment
222 W 39TH AVE, SAN MATEO, CA 94403(650) 573-2530(650) 573-2527 Get Directions Write a Review

NPPES record last updated: February 14, 2014. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Alexander Saul Cardenas M.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ALEXANDER SAUL CARDENAS M.D (NPI 1720342116) is an individual psychiatry provider in San Mateo, California, licensed in California (A126651) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS and is a graduate of Stanford University School Of Medicine (2013).

NPPES Registry Identity

NPI1720342116
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. ALEXANDER SAUL CARDENASCredential: M.D
Location Address222 W 39TH AVESan Mateo, CA 94403-4364
Mailing Address222 W 39th AveSan Mateo, CA 94403-4364 · (650) 573-2530 · Fax (650) 573-2527
Fax(650) 573-2527
Sole ProprietorNo
Medical School CMSStanford University School Of MedicineGraduated 2013
Enumeration DateJune 29, 2012
Last NPPES UpdateFebruary 14, 2014
✔ NPI 1720342116 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A126651
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
222 W 39TH AVE, San Mateo, CA 94403

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Alexander Saul Cardenas M.d is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7214163781
PECOS Enrollment IDI20131112001182
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Alexander Cardenas reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multi-Specialty
222 W 39TH AVE
San Mateo, CA 94403
  • Reassigned Medicare billing, California enrollment
  • 597 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
664 SOUTHLAND MALL
Hayward, CA 94545
  • Reassigned Medicare billing, California enrollment
  • 900 clinicians in this Medicare group
Mental Health (Including Community Mental Health Center)
995 SPRUCE STREET
Gridley, CA 95948
  • Reassigned Medicare billing, California enrollment
  • 109 clinicians in this Medicare group
Community/Behavioral Health
720 WOOD ST
Eureka, CA 95501
  • Reassigned Medicare billing, California enrollment
  • 65 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94403 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Psychologist (Clinical)
222 W 39TH AVE
SAN MATEO, CA 94403
General Acute Care Hospital
222 W 39TH AVE
SAN MATEO, CA 94403
Dermatology
222 W 39TH AVE
SAN MATEO, CA 94403
Clinic/Center
222 W 39TH AVE
SAN MATEO, CA 94403
Obstetrics & Gynecology
222 W 39TH AVE
SAN MATEO, CA 94403
Counselor
222 W 39TH AVE
SAN MATEO, CA 94403
Physical Medicine & Rehabilitation
222 W 39TH AVE
SAN MATEO, CA 94403
Registered Nurse
222 W 39TH AVE
SAN MATEO, CA 94403

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alexander Cardenas's NPI number?

The NPI number for Alexander Cardenas is 1720342116. It was assigned to this individual provider in the NPPES registry on June 29, 2012.

Where is Alexander Cardenas located?

Alexander Cardenas practices at 222 W 39th Ave, San Mateo, CA 94403. The listed phone number is (650) 573-2530.

What is Alexander Cardenas's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Alexander Cardenas enrolled in Medicare?

Yes. Alexander Cardenas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Alexander Cardenas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Cardenas reassigns Medicare benefits to 4 organizations: County Of San Mateo (San Mateo, CA), Alameda Health System (Hayward, CA), County Of Butte (Gridley, CA) and County Of Humboldt (Eureka, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alexander Cardenas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexander Cardenas accept?

Health plans from Moda Health Plan, Inc. list Alexander Cardenas as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alexander Cardenas was last updated on February 14, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.