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ALEX M MENDEZ PH.D.
NPI 1306045240
Counselor - Mental Health in San Leandro, CA

Active since July 11, 2007PECOS Enrolled
13666 E 14TH ST, SAN LEANDRO, CA 94578(510) 357-5515(510) 357-5112 Get Directions Write a Review

NPPES record last updated: July 19, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Alex M Mendez Ph.d. NPPES

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

ALEX M MENDEZ PH.D. (NPI 1306045240) is an individual mental health provider in San Leandro, California and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1306045240
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameALEX M MENDEZCredential: PH.D.
Location Address13666 E 14TH STSan Leandro, CA 94578-2538
Mailing Address13666 E 14th StSan Leandro, CA 94578-2538 · (510) 357-5515 · Fax (510) 357-5112
Phone(510) 357-5515
Fax(510) 357-5112
Sole ProprietorNo
Enumeration DateJuly 11, 2007
Last NPPES UpdateJuly 19, 2022
NPPES CertifiedJuly 19, 2022
✔ NPI 1306045240 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
13666 E 14TH ST, San Leandro, CA 94578
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alex M Mendez Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Alex Mendez reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
16 mi
Internal Medicine
1190 VETERANS BLVD
Redwood City, CA 94063
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1639252604 (650) 299-2000

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

Other Providers at the Same Location NPPES 17

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

MRS. JINY THOMAS ABRAHAM
Counselor (Mental Health)
13666 E 14TH ST
SAN LEANDRO, CA 94578
Alameda County (510) 357-5515
GISELA M MERKER MFT
Marriage & Family Therapist
13666 E 14TH ST
SAN LEANDRO, CA 94578
Alameda County (510) 357-5515
HILARY SLUIS M.S.
Counselor (Mental Health)
13666 E 14TH ST
SAN LEANDRO, CA 94578
Alameda County (510) 357-5515
ROSCHE PATRICIA BROWN
Counselor
13666 E 14TH ST
SAN LEANDRO, CA 94578
Alameda County (510) 357-5515
JENNIFER LYNETTE CLARK MALLARI M.A., MDIV
Counselor (Mental Health)
13666 E 14TH ST
SAN LEANDRO, CA 94578
Alameda County (510) 357-5515
MS. LYNN ANN BEFERA MA
Counselor (Mental Health)
13666 E 14TH ST
SAN LEANDRO, CA 94578
Alameda County (510) 357-5515
REBECCA L CANNON MFT
Marriage & Family Therapist
13666 E 14TH ST
SAN LEANDRO, CA 94578
Alameda County (510) 357-5515
MRS. REBECCA LYNN MONTOYA-MILLER
Counselor (Mental Health)
13666 E 14TH ST
SAN LEANDRO, CA 94578
Alameda County (510) 357-5112

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 Alex Mendez's NPI number?

The NPI number for Alex Mendez is 1306045240. It was assigned to this individual provider in the NPPES registry on July 11, 2007.

Where is Alex Mendez located?

Alex Mendez practices at 13666 E 14th St, San Leandro, CA 94578. The listed phone number is (510) 357-5515.

What is Alex Mendez's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Alex Mendez enrolled in Medicare?

Yes. Alex Mendez is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alex Mendez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alex Mendez reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, CA). The 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 Alex Mendez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alex Mendez was last updated on July 19, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.