Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Margarita Alonso MD LLC

Q: What type of organization is Margarita Alonso MD LLC?

Margarita Alonso MD LLC is registered in NPPES as a Psychiatry Physician (its primary provider taxonomy).

Psychiatry Physician in Encinitas, CA · enumerated 2020 · authorized official Margarita Alonso, MD.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1730794223

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Registry record

Entity type Organization (Type 2)

Legal business name Margarita Alonso MD LLC

Practice address 4401 Manchester Ave Ste 101, Encinitas, CA, 92024

Phone (619) 294-4119

Fax (619) 295-5044

Enumeration date Sep 10, 2020

Last updated in NPPES Sep 10, 2020

Taxonomy & classification

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Margarita Alonso

Title MD

Phone (619) 294-4119

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Margarita Alonso MD LLC?

Margarita Alonso MD LLC is registered in NPPES as a Psychiatry Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-10.