Dr Shireena Desai, MD - Medicare Internal Medicine in Irvine, CA

Dr Shireena Desai, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Irvine, California. She went to University Of California, Irvine, California College Of Medicine and graduated in 2009 and has 15 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Southern California Permanente Medical Group and her current practice location is 6650 Alton Pkwy, Gastroenterology, Mob 2, Irvine, California. You can reach out to her office (for appointments etc.) via phone at (949) 932-5000.

Dr Shireena Desai is licensed to practice in California (license number A114928) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1144457995.

Contact Information

Dr Shireena Desai, MD
6650 Alton Pkwy, Gastroenterology, Mob 2,
Irvine, CA 92618-3734
(949) 932-5000
Not Available

Map and Direction




Physician's Profile

Full NameDr Shireena Desai
GenderFemale
SpecialityInternal Medicine
Experience15 Years
Location6650 Alton Pkwy, Irvine, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Shireena Desai attended and graduated from University Of California, Irvine, California College Of Medicine in 2009
  NPI Data:
  • NPI Number: 1144457995
  • Provider Enumeration Date: 06/19/2009
  • Last Update Date: 11/29/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 1658689880
  • Enrollment ID: I20151007002356

Medical Identifiers

Medical identifiers for Dr Shireena Desai such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144457995NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A114928 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Kaiser Foundation Hospital - Orange County - AnaheAnaheim, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southern California Permanente Medical Group60027291757951

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. Dr Shireena Desai allows following entities to bill medicare on her behalf.
Entity NameSouthern California Permanente Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770515280
PECOS PAC ID: 6002729175
Enrollment ID: O20031110000678

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. Dr Shireena Desai 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
Dr Shireena Desai, MD
6650 Alton Pkwy, Gastroenterology, Mob 2,
Irvine, CA 92618-3734

Ph: (949) 932-5000
Dr Shireena Desai, MD
6650 Alton Pkwy, Gastroenterology, Mob 2,
Irvine, CA 92618-3734

Ph: (949) 932-5000

Reviews and Comments


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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).

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