Watson A Desa, MD - Medicare Cardiovascular Disease (cardiology) in Los Alamitos, CA

Watson A Desa, MD is a medicare enrolled "Internal Medicine - Interventional Cardiology" physician in Los Alamitos, California. He graduated from medical school in 1973 and has 51 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). His current practice location is 3851 Katella Ave Ste 305, Los Alamitos, California. You can reach out to his office (for appointments etc.) via phone at (562) 594-6080.

Watson A Desa is licensed to practice in California (license number A32717) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1235185620.

Contact Information

Watson A Desa, MD
3851 Katella Ave Ste 305,
Los Alamitos, CA 90720-3390
(562) 594-6080
(562) 594-6030

Map and Direction




Physician's Profile

Full NameWatson A Desa
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience51 Years
Location3851 Katella Ave Ste 305, Los Alamitos, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Watson A Desa graduated from medical school in 1973
  NPI Data:
  • NPI Number: 1235185620
  • Provider Enumeration Date: 05/26/2006
  • Last Update Date: 04/13/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3173527157
  • Enrollment ID: I20060905000562

Medical Identifiers

Medical identifiers for Watson A Desa such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1235185620NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0011XInternal Medicine - Interventional Cardiology A32717 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Mary Medical CenterLong beach, CAHospital
Los Alamitos Medical CenterLos alamitos, CAHospital

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Watson A Desa allows following entities to bill medicare on his behalf.
Entity NameDepartment Of State Hospitals
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124078704
PECOS PAC ID: 9638174238
Enrollment ID: O20081031000305
Entity NameWatson A Desa Md A Medical Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982616439
PECOS PAC ID: 4789902487
Enrollment ID: O20150409000055

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Watson A Desa is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Watson A Desa, MD
3851 Katella Ave Ste 305,
Los Alamitos, CA 90720-3390

Ph: (562) 594-6080
Watson A Desa, MD
3851 Katella Ave Ste 305,
Los Alamitos, CA 90720-3390

Ph: (562) 594-6080

Reviews and Comments


Internal Medicine Doctors in Los Alamitos, CA

Moustafa Moataz Aboshady, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3751 Katella Ave, Los Alamitos, CA 90720
Phone: 928-854-9603    
Dr. Jyoti Manohar Bakhru, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4281 Katella Ave Ste 220, Los Alamitos, CA 90720
Phone: 714-252-1135    Fax: 714-226-0681
Sarah Lynn Sandell, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3742 Katella Ave, Suite 302, Los Alamitos, CA 90720
Phone: 562-936-0292    Fax: 562-936-1943
Dr. Steven T. Forman, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5300 Katella Ave, Los Alamitos, CA 90720
Phone: 562-430-7533    Fax: 562-430-8055
Carlos Arguedas,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5300 Katella Ave, Los Alamitos, CA 90720
Phone: 562-429-1200    Fax: 562-429-8070
Dr. Minh Tue Huynh, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3801 Katella Ave, Suite 207, Los Alamitos, CA 90720
Phone: 562-598-9745    Fax: 562-598-0355
Dr. Omid Vahdat, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3801 Katella Ave, Suite 310, Los Alamitos, CA 90720
Phone: 562-598-0604    Fax: 562-598-1649

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.