1. Home
  2. Directory
  3. California
  4. San Leandro
  5. Peer Specialist
  6. NPI Profile

MARK DENNIS
NPI 1144118969
Peer Specialist in San Leandro, CA

Active since June 27, 2025
13095 NEPTUNE DR, SAN LEANDRO, CA 94577(510) 300-3500 Get Directions Write a Review

NPPES record last updated: June 27, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mark Dennis NPPES

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

MARK DENNIS (NPI 1144118969) is an individual peer specialist in San Leandro, California and active in the NPI registry since June 2025.

NPPES Registry Identity

NPI1144118969
Entity TypeIndividualMale
Primary Taxonomy175T00000X
Provider Legal NameMARK DENNIS
Location Address13095 NEPTUNE DRSan Leandro, CA 94577-3130
Mailing Address13095 Neptune DrSan Leandro, CA 94577-3130 · (510) 300-3500
Phone(510) 300-3500
Sole ProprietorNo
Enumeration DateJune 27, 2025
NPPES CertifiedJune 27, 2025
✔ NPI 1144118969 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPeer SpecialistOther Service Providers
Taxonomy Code175T00000X
Definition
Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.
13095 NEPTUNE DR, San Leandro, CA 94577
Open in Google Maps ↗

Other Providers at the Same Location NPPES 12

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

DARRYL JOHNSON
Peer Specialist
13095 NEPTUNE DR
SAN LEANDRO, CA 94577
Alameda County (510) 300-3500
THE ALLIANCE FOR COMMUNITY WELLNESS
Respite Care
13095 NEPTUNE DR
SAN LEANDRO, CA 94577
Alameda County (510) 300-3500
RODRIGO REGALADO
Peer Specialist
13095 NEPTUNE DR
SAN LEANDRO, CA 94577
Alameda County (510) 300-3500
JASMINE HAYWOOD
Peer Specialist
13095 NEPTUNE DR
SAN LEANDRO, CA 94577
Alameda County (510) 300-3500
SEMAJE CLARK
Peer Specialist
13095 NEPTUNE DR
SAN LEANDRO, CA 94577
Alameda County (510) 300-3500
DAVID-LLOYD HUATT RICHARDS-REISS
Peer Specialist
13095 NEPTUNE DR
SAN LEANDRO, CA 94577
Alameda County (510) 300-3500
SAIKO NICOLE FOSTER
Peer Specialist
13095 NEPTUNE DR
SAN LEANDRO, CA 94577
Alameda County (707) 704-3341
RICARDO ROMERO
Peer Specialist
13095 NEPTUNE DR
SAN LEANDRO, CA 94577
Alameda County (341) 258-5405

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 Mark Dennis's NPI number?

The NPI number for Mark Dennis is 1144118969. It was assigned to this individual provider in the NPPES registry on June 27, 2025.

Where is Mark Dennis located?

Mark Dennis practices at 13095 Neptune Dr, San Leandro, CA 94577. The listed phone number is (510) 300-3500.

What is Mark Dennis's specialty?

The primary specialty registered for this NPI is Peer Specialist with taxonomy code 175T00000X.

When was this NPI record last updated?

The NPPES record for Mark Dennis was last updated on June 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.