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MOWBRAY P. HAGAN, M.D. INC.
NPI 1356353361
Clinic/Center - Primary Care in Corona, CA

Active since August 12, 2006
760 WASHBURN AVE STE 4, CORONA, CA 92882(951) 734-6110(951) 734-9989 Get Directions Write a Review

NPPES record last updated: December 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mowbray P. Hagan, M.d. Inc. NPPES

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

MOWBRAY P. HAGAN, M.D. INC. (NPI 1356353361) is a healthcare organization registered as a primary care in Corona, California and active in the NPI registry since August 2006. The organization lists Mowbray P. Hagan, President, as its authorized official.

NPPES Registry Identity

NPI1356353361
Entity TypeOrganization
Primary Taxonomy261QP2300X
Legal Business NameMOWBRAY P. HAGAN, M.D. INC.
Location Address760 WASHBURN AVE STE 4Corona, CA 92882-3303
Mailing Address760 Washburn Ave Ste 4Corona, CA 92882-3303 · (951) 734-6110 · Fax (951) 734-9989
Phone(951) 734-6110
Fax(951) 734-9989
Organization SubpartNo
Authorized OfficialMowbray P. HaganPresident · (951) 734-6110
Enumeration DateAugust 12, 2006
Last NPPES UpdateDecember 11, 2025
NPPES CertifiedDecember 11, 2025
✔ NPI 1356353361 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Primary CareAmbulatory Health Care Facilities
Taxonomy Code261QP2300X
License✔ Licensed in CA · A29431
760 WASHBURN AVE STE 4, Corona, CA 92882
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mowbray P. Hagan, M.d. Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by November 30, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20041129000626Non-DME Part B · Clinic/Group PracticeDue dateNovember 30, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Mowbray P. Hagan, M.D. Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Mowbray Hagan, MD
Internal Medicine
NPI 1235145590
760 WASHBURN AVE STE 4
Corona, CA 92882
(951) 734-6110
✔ PECOSSame 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 Mowbray P. Hagan, M.D. Inc.'s NPI number?

The NPI number for Mowbray P. Hagan, M.D. Inc. is 1356353361. It was assigned to this organization in the NPPES registry on August 12, 2006.

Where is Mowbray P. Hagan, M.D. Inc. located?

Mowbray P. Hagan, M.D. Inc. is located at 760 Washburn Ave Ste 4, Corona, CA 92882. The listed phone number is (951) 734-6110.

What is Mowbray P. Hagan, M.D. Inc.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.

Is Mowbray P. Hagan, M.D. Inc. enrolled in Medicare?

Yes. Mowbray P. Hagan, M.D. Inc. is registered in the Medicare PECOS enrollment system.

When is Mowbray P. Hagan, M.D. Inc.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Mowbray P. Hagan, M.D. Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Mowbray P. Hagan, M.D. Inc.. 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 Mowbray P. Hagan, M.D. Inc. was last updated on December 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.