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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

DR. HANNA JOAN HARRINGTON DDS
NPI 1104749142
Dentist - General Practice in Oceanside, CA

Active since August 04, 2026
200 MERCY CIRCLE, OCEANSIDE, CA 92055(760) 725-4357 Get Directions Write a Review

NPPES record added: August 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Hanna Joan Harrington Dds NPPES

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

DR. HANNA JOAN HARRINGTON DDS (NPI 1104749142) is an individual general practice provider in Oceanside, California, licensed in Utah (14298999-9926) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1104749142
Entity TypeIndividualFemale
Primary Taxonomy1223G0001X
Provider Legal NameDR. HANNA JOAN HARRINGTONCredential: DDS
Location Address200 MERCY CIRCLEOceanside, CA 92055
Mailing Address2 Bayberry WayPound Ridge, NY 10576-1600
Phone(760) 725-4357
Sole ProprietorNo
Enumeration DateAugust 4, 2026
NPPES CertifiedJuly 23, 2026
✔ NPI 1104749142 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
License✔ Licensed in UT · 14298999-9926
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
200 MERCY CIRCLE, Oceanside, CA 92055
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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.

MARIA J HERRERA PH.D.
Psychologist (Clinical)
200 MERCY CIRCLE
OCEANSIDE, CA 92055
San Diego County (510) 542-0859
SHERRI MARTINEZ LMFT, ADCII
Counselor (Addiction (Substance Use Disorder))
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 725-0063
DR. ASHLEY BITTLE LCSW, PSY.D.
Psychologist (Clinical)
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 719-3322
CAROLYN STEINLAGE DPT
Physical Therapist
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 719-3791
SHANE MCGUIRE FMF RECON IDC
Military Health Care Provider (Independent Duty Corpsman)
200 MERCY CIRCLE
OCEANSIDE, CA 92055
San Diego County (760) 725-8912
MELINDA WEE FAH MARTINEZ PA
Physician Assistant
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 719-4550
ALEXANDER JEFFREY NELSON PA-C
Physician Assistant
200 MERCY CIRCLE
OCEANSIDE, CA 92055
San Diego County (760) 725-1288
ELLA HAHN SCHULTZ DO
Student in an Organized Health Care Education/Training Program
200 MERCY CIRCLE
CAMP PENDLETON, CA 92055
San Diego County (760) 725-1288

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 Hanna Harrington's NPI number?

The NPI number for Hanna Harrington is 1104749142. It was assigned to this individual provider in the NPPES registry on August 4, 2026.

Where is Hanna Harrington located?

Hanna Harrington practices at 200 Mercy Circle, Oceanside, CA 92055. The listed phone number is (760) 725-4357.

What is Hanna Harrington's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for Hanna Harrington was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.