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SEAN LESON DO MPH PC
NPI 1245305838
Clinic/Center - Medical Specialty in Garden Grove, CA

Active since November 21, 2006
12512 GARDEN GROVE BLVD, GARDEN GROVE, CA 92843(714) 590-1611(714) 590-1641 Get Directions Write a Review

NPPES record last updated: July 20, 2015. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Sean Leson Do Mph Pc NPPES

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

SEAN LESON DO MPH PC (NPI 1245305838) is a healthcare organization registered as a medical specialty in Garden Grove, California and active in the NPI registry since November 2006. The organization lists Sean Leson, President, as its authorized official.

NPPES Registry Identity

NPI1245305838
Entity TypeOrganization
Primary Taxonomy261QM2500X
Legal Business NameSEAN LESON DO MPH PC
Location Address12512 GARDEN GROVE BLVDGarden Grove, CA 92843-1907
Mailing Address12512 Garden Grove BlvdGarden Grove, CA 92843-1907 · (714) 590-1611 · Fax (714) 590-1641
Phone(714) 590-1611
Fax(714) 590-1641
Organization SubpartNo
Authorized OfficialSean LesonPresident · (714) 590-1611
Enumeration DateNovember 21, 2006
Last NPPES UpdateJuly 20, 2015
✔ NPI 1245305838 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Medical SpecialtyAmbulatory Health Care Facilities
Taxonomy Code261QM2500X
License✔ Licensed in CA · 20A6461
Definition
An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical specialization. Frequently used for Title V related Children's Specialty services or to meet specific public health needs (e.g., infectious diseases or breast and cervical cancer).
12512 GARDEN GROVE BLVD, Garden Grove, CA 92843
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Other Identifiers 1

Medicare UPINF67337CA

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sean Leson Do Mph Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Sean Leson Do Mph PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Sean Leson, D.O.
Allergy/Immunology
NPI 1699733766
12512 GARDEN GROVE BLVD
Garden Grove, CA 92843
(714) 590-1611
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Sean Leson Do Mph PC's NPI number?

The NPI number for Sean Leson Do Mph PC is 1245305838. It was assigned to this organization in the NPPES registry on November 21, 2006.

Where is Sean Leson Do Mph PC located?

Sean Leson Do Mph PC is located at 12512 Garden Grove Blvd, Garden Grove, CA 92843. The listed phone number is (714) 590-1611.

What is Sean Leson Do Mph PC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

Is Sean Leson Do Mph PC enrolled in Medicare?

Yes. Sean Leson Do Mph PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sean Leson Do Mph PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Allergy/Immunology) reassigns their Medicare billing to Sean Leson Do Mph PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Sean Leson Do Mph PC was last updated on July 20, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.