Dr Michael Sean Duffy Sr, DO - Medicare in San Diego, CA

Dr Michael Sean Duffy Sr, DO is a medicare enrolled "Internal Medicine" physician in San Diego, California. His current practice location is 1501 5th Ave Ste 100, San Diego, California. You can reach out to his office (for appointments etc.) via phone at (619) 647-5072.

Dr Michael Sean Duffy Sr is licensed to practice in California (license number 20A9616) 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 1851399802.

Contact Information

Dr Michael Sean Duffy Sr, DO
1501 5th Ave Ste 100,
San Diego, CA 92101-3251
(619) 647-5072
(619) 330-4782

Map and Direction




Physician's Profile

Full NameDr Michael Sean Duffy Sr
GenderMale
Speciality
Experience Years
Location1501 5th Ave Ste 100, 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 Michael Sean Duffy Sr attended and graduated from in
  NPI Data:
  • NPI Number: 1851399802
  • Provider Enumeration Date: 07/13/2005
  • Last Update Date: 09/22/2022
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Dr Michael Sean Duffy Sr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1851399802NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 20A9616 (California)Primary

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 Michael Sean Duffy Sr 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 Michael Sean Duffy Sr, DO
1501 5th Ave Ste 100,
San Diego, CA 92101-3251

Ph: (619) 647-5072
Dr Michael Sean Duffy Sr, DO
1501 5th Ave Ste 100,
San Diego, CA 92101-3251

Ph: (619) 647-5072

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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