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MARISSA ROSE O'NEILL
NPI 1255056651
Day Training/Habilitation Specialist in Pittsburg, CA

Active since October 07, 2022
2311 LOVERIDGE RD, PITTSBURG, CA 94565(925) 431-2632 Get Directions Write a Review

NPPES record last updated: July 17, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Oct 26, 2022, Oct 18, 2022, Oct 7, 2022 (3 updates tracked since 2022).

About Marissa Rose O'neill NPPES

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

MARISSA ROSE O'NEILL (NPI 1255056651) is an individual day training/habilitation specialist in Pittsburg, California and active in the NPI registry since October 2022.

NPPES Registry Identity

NPI1255056651
Entity TypeIndividualFemale
Primary Taxonomy373H00000X
Provider Legal NameMARISSA ROSE O'NEILL
Location Address2311 LOVERIDGE RDPittsburg, CA 94565-5117
Mailing Address2311 Loveridge RdPittsburg, CA 94565-5117 · (925) 431-2632
Phone(925) 431-2632
Sole ProprietorYes
Enumeration DateOctober 7, 2022
Last NPPES UpdateJuly 17, 20253 updates tracked since enumeration
NPPES CertifiedJune 18, 2025
✔ NPI 1255056651 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDay Training/Habilitation SpecialistNursing Service Related Providers
Taxonomy Code373H00000X
Definition
Individuals experienced or trained in working with developmentally disabled individuals who need assistance in acquiring and maintaining life skills that enable them to cope more effectively with the demands of independent living.
2311 LOVERIDGE RD, Pittsburg, CA 94565
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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.

DR. KAREN THERESIA MARCUS M.D.
Psychiatry & Neurology (Psychiatry)
2311 LOVERIDGE RD, 2ND FLOOR
PITTSBURG, CA 94565
Contra Costa County (925) 431-2600
CONTRA COSTA COUNTY
Clinic/Center (Family Planning, Non-Surgical)
2311 LOVERIDGE RD
PITTSBURG, CA 94565
Contra Costa County (925) 957-5429
MS. EUGENIE ELISE KAISER LMFT
Marriage & Family Therapist
2311 LOVERIDGE RD, 2ND FLOOR
PITTSBURG, CA 94565
Contra Costa County (925) 431-2637
MRS. JASMIN RAMOS FAUSTINO PT
Physical Therapist
2311 LOVERIDGE RD
PITTSBURG, CA 94565
Contra Costa County (925) 431-2730
DR. ABRAHAM CHARLES RICE M.D.
Pediatrics
2311 LOVERIDGE RD
PITTSBURG, CA 94565
Contra Costa County (925) 370-5200
MRS. ASEFEH A MOSTOFI RN
Registered Nurse
2311 LOVERIDGE RD, 2ND FLOOR
PITTSBURG, CA 94565
Contra Costa County (925) 431-2641
UZMA ANWER REHMAN KHAN M.D
Psychiatry & Neurology (Psychiatry)
2311 LOVERIDGE RD, 2ND FLOOR
PITTSBURG, CA 94565
Contra Costa County (925) 431-2600
MARJORIE SUAREZ
Family Medicine
2311 LOVERIDGE RD
PITTSBURG, CA 94565
Contra Costa County (954) 854-4054

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 Marissa O'neill's NPI number?

The NPI number for Marissa O'neill is 1255056651. It was assigned to this individual provider in the NPPES registry on October 7, 2022.

Where is Marissa O'neill located?

Marissa O'neill practices at 2311 Loveridge Rd, Pittsburg, CA 94565. The listed phone number is (925) 431-2632.

What is Marissa O'neill's specialty?

The primary specialty registered for this NPI is Day Training/Habilitation Specialist with taxonomy code 373H00000X.

When was this NPI record last updated?

The NPPES record for Marissa O'neill was last updated on July 17, 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.