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WATSON A. DESA, MD, A MEDICAL CORP
NPI 1982616439
Clinic/Center - Medical Specialty in Long Beach, CA

Active since August 13, 2006
1050 LINDEN AVE, LONG BEACH, CA 90813(562) 594-6080(562) 594-6030 Get Directions Write a Review

NPPES record last updated: October 30, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 14, 2023, Mar 17, 2018, Oct 24, 2017 (3 updates tracked since 2017).

About Watson A. Desa, Md, A Medical Corp NPPES

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

WATSON A. DESA, MD, A MEDICAL CORP (NPI 1982616439) is a healthcare organization registered as a medical specialty in Long Beach, California and active in the NPI registry since August 2006. The organization maintains 2 additional practice locations and lists Watson Antonio Desa, Owner, as its authorized official.

NPPES Registry Identity

NPI1982616439
Entity TypeOrganization
Primary Taxonomy261QM2500X
Legal Business NameWATSON A. DESA, MD, A MEDICAL CORP
Location Address1050 LINDEN AVELong Beach, CA 90813-3393
Mailing AddressPo Box 708Los Alamitos, CA 90720-0708 · (562) 594-6080 · Fax (562) 594-6030
Phone(562) 594-6080
Fax(562) 594-6030
Organization SubpartNo
Authorized OfficialWatson Antonio DesaOwner · (562) 594-6080
Enumeration DateAugust 13, 2006
Last NPPES UpdateOctober 30, 20253 updates tracked since enumeration
NPPES CertifiedOctober 30, 2025
✔ NPI 1982616439 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 · A32717
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).
1050 LINDEN AVE, Long Beach, CA 90813
Open in Google Maps ↗

Secondary Practice Locations 2

Location 13700 South StLakewood, CA 90712-1419 · Phone (562) 594-6080 · Fax (562) 594-6030
Location 23751 Katella AveLos Alamitos, CA 90720-3113 · Phone (562) 594-6080 · Fax (562) 594-6030

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Watson A. Desa, Md, A Medical Corp 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 Watson A. Desa, MD, A Medical Corp, which bills Medicare for the services this clinician delivers.

Clinician (1)

Watson Desa, MD
Cardiovascular Disease (Cardiology)
NPI 1235185620
3851 KATELLA AVE STE 305
Los Alamitos, CA 90720
(562) 594-6080
✔ PECOS✔ Accepts Medicare7.1 mi

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 Watson A. Desa, MD, A Medical Corp's NPI number?

The NPI number for Watson A. Desa, MD, A Medical Corp is 1982616439. It was assigned to this organization in the NPPES registry on August 13, 2006.

Where is Watson A. Desa, MD, A Medical Corp located?

Watson A. Desa, MD, A Medical Corp is located at 1050 Linden Ave, Long Beach, CA 90813. The listed phone number is (562) 594-6080.

What is Watson A. Desa, MD, A Medical Corp's specialty?

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

Is Watson A. Desa, MD, A Medical Corp enrolled in Medicare?

Yes. Watson A. Desa, MD, A Medical Corp is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Watson A. Desa, MD, A Medical Corp?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Cardiovascular Disease (Cardiology)) reassigns their Medicare billing to Watson A. Desa, MD, A Medical Corp. 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 Watson A. Desa, MD, A Medical Corp was last updated on October 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.