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DR. MARYELLEN O'REILLY M.D.
NPI 1780851808
General Practice in Irvine, CA

Active since May 08, 2008
60 DISCOVERY, IRVINE, CA 92618(949) 586-9904(949) 586-7816 Get Directions Write a Review

NPPES record last updated: May 8, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Maryellen O'reilly M.d. NPPES

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

DR. MARYELLEN O'REILLY M.D. (NPI 1780851808) is an individual general practice provider in Irvine, California, licensed in California (G63194) and active in the NPI registry since May 2008.

NPPES Registry Identity

NPI1780851808
Entity TypeIndividualFemale
Primary Taxonomy208D00000X
Provider Legal NameDR. MARYELLEN O'REILLYCredential: M.D.
Location Address60 DISCOVERYIrvine, CA 92618-3105
Mailing Address60 DiscoveryIrvine, CA 92618-3105 · (949) 586-9904 · Fax (949) 586-7816
Phone(949) 586-9904
Fax(949) 586-7816
Sole ProprietorYes
Enumeration DateMay 8, 2008
✔ NPI 1780851808 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
License✔ Licensed in CA · G63194
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
60 DISCOVERY, Irvine, CA 92618
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Other Names 1

Former Name (1)Dr. Maryellen Debonis M.d.

Other Providers at the Same Location NPPES

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

DR. GRACE GUIMEI YAO, A PROFESSIONAL CORPORATION
Obstetrics & Gynecology
60 DISCOVERY
IRVINE, CA 92618
Orange County (949) 418-7330

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 Maryellen O'reilly's NPI number?

The NPI number for Maryellen O'reilly is 1780851808. It was assigned to this individual provider in the NPPES registry on May 8, 2008. The provider is also known as Dr. Maryellen Debonis M.D..

Where is Maryellen O'reilly located?

Maryellen O'reilly practices at 60 Discovery, Irvine, CA 92618. The listed phone number is (949) 586-9904.

What is Maryellen O'reilly's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

When was this NPI record last updated?

The NPPES record for Maryellen O'reilly was last updated on May 8, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.