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F. MONTELONGO M.D INC
NPI 1821259334
Clinic/Center in Orange, CA

Active since June 18, 2008
932 E CHAPMAN AVE, ORANGE, CA 92866(714) 997-8050(714) 997-5075 Get Directions Write a Review

NPPES record last updated: June 18, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About F. Montelongo M.d Inc NPPES

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

F. MONTELONGO M.D INC (NPI 1821259334) is a healthcare organization registered as a clinic/center in Orange, California and active in the NPI registry since June 2008. The organization lists Fernando A Montelongo, Doctor, as its authorized official.

NPPES Registry Identity

NPI1821259334
Entity TypeOrganization
Primary Taxonomy261Q00000X
Legal Business NameF. MONTELONGO M.D INC
Location Address932 E CHAPMAN AVEOrange, CA 92866-2109
Mailing Address932 E Chapman AveOrange, CA 92866-2109 · (714) 997-8050 · Fax (714) 997-5075
Phone(714) 997-8050
Fax(714) 997-5075
Organization SubpartNo
Authorized OfficialFernando A MontelongoDoctor · (714) 997-8050
Enumeration DateJune 18, 2008
✔ NPI 1821259334 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/CenterAmbulatory Health Care Facilities
Taxonomy Code261Q00000X
Definition
A facility or distinct part of one used for the diagnosis and treatment of outpatients. Clinic/Center is irregularly defined, sometimes being limited to organizations serving specialized treatment requirements or distinct patient/client groups (e.g., radiology, poor, and public health).
932 E CHAPMAN AVE, Orange, CA 92866
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Other Identifiers 1

OtherG45460CA · License

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

F. Montelongo M.d Inc 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 F. Montelongo M.D Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Fernando Montelongo, M.D.
Family Practice
NPI 1245321165
932 E CHAPMAN AVE
Orange, CA 92866
(714) 997-8050
✔ 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 F. Montelongo M.D Inc's NPI number?

The NPI number for F. Montelongo M.D Inc is 1821259334. It was assigned to this organization in the NPPES registry on June 18, 2008.

Where is F. Montelongo M.D Inc located?

F. Montelongo M.D Inc is located at 932 E Chapman Ave, Orange, CA 92866. The listed phone number is (714) 997-8050.

What is F. Montelongo M.D Inc's specialty?

The primary specialty registered for this NPI is Clinic/Center with taxonomy code 261Q00000X.

Is F. Montelongo M.D Inc enrolled in Medicare?

Yes. F. Montelongo M.D Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through F. Montelongo M.D Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to F. Montelongo 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 F. Montelongo M.D Inc was last updated on June 18, 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.