Dr Joshan K Shajan, MD - Medicare Internal Medicine in San Diego, CA

Dr Joshan K Shajan, MD is a medicare enrolled "General Practice" physician in San Diego, California. He graduated from medical school in 2012 and has 12 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 3863 Clairemont Dr, San Diego, California. You can reach out to his office (for appointments etc.) via phone at (858) 483-5570.

Dr Joshan K Shajan is licensed to practice in California (license number A155675) 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 1790043040.

Contact Information

Dr Joshan K Shajan, MD
3863 Clairemont Dr,
San Diego, CA 92117-5831
(858) 483-5570
(858) 483-5572

Map and Direction




Physician's Profile

Full NameDr Joshan K Shajan
GenderMale
SpecialityInternal Medicine
Experience12 Years
Location3863 Clairemont Dr, San Diego, 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:
  • Dr Joshan K Shajan graduated from medical school in 2012
  NPI Data:
  • NPI Number: 1790043040
  • Provider Enumeration Date: 04/24/2012
  • Last Update Date: 04/03/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9638497571
  • Enrollment ID: I20150406001079

Medical Identifiers

Medical identifiers for Dr Joshan K Shajan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1790043040NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 53782 (Connecticut)Secondary
208D00000XGeneral Practice A155675 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Greenwich Hospital Association -Greenwich, CTHospital
Stamford HospitalStamford, CTHospital

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 Joshan K Shajan allows following entities to bill medicare on his behalf.
Entity NameFrancis X Walsh Md Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902271729
PECOS PAC ID: 0143127472
Enrollment ID: O20160127002673
Entity NameDoctors Office Ct Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962997940
PECOS PAC ID: 1759617244
Enrollment ID: O20190722001186

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 Joshan K Shajan 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 Joshan K Shajan, MD
212 Bible St,
Cos Cob, CT 06807-1322

Ph: (646) 652-1791
Dr Joshan K Shajan, MD
3863 Clairemont Dr,
San Diego, CA 92117-5831

Ph: (858) 483-5570

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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