Michael J Duffy, PA - Medicare Physician Assistant in Oakland, CA

Michael J Duffy, PA is a medicare enrolled "Physician Assistant" in Oakland, California. He graduated from nursing school in 1979 and has 45 years of diverse experience with area of expertise as Physician Assistant. He is a member of the group practice Ventura Urgent Care Center Medical Corp, Western Sierra Medical Clinic Inc. and his current practice location is 3315 Broadway, Oakland, California. You can reach out to his office (for appointments etc.) via phone at (510) 486-2300.

Michael J Duffy is licensed to practice in California (license number PA11368) 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 1801839188.

Contact Information

Michael J Duffy, PA
3315 Broadway,
Oakland, CA 94611-5717
(510) 486-2300
(510) 486-2333

Map and Direction




Provider's Profile

Full NameMichael J Duffy
GenderMale
SpecialityPhysician Assistant
Experience45 Years
Location3315 Broadway, Oakland, 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:
  • Michael J Duffy graduated from nursing school in 1979
  NPI Data:
  • NPI Number: 1801839188
  • Provider Enumeration Date: 06/14/2006
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 9931000825
  • Enrollment ID: I20040114000615

Medical Identifiers

Medical identifiers for Michael J Duffy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1801839188NPI-NPPES
37623171MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant PA11368 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Sierra Nevada Memorial HospitalGrass valley, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ventura Urgent Care Center Medical Corp23654920897
Western Sierra Medical Clinic Inc.397157121722

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. Michael J Duffy 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
Michael J Duffy, PA
200 Porter Dr Ste 215,
San Ramon, CA 94583-1524

Ph: (925) 362-2166
Michael J Duffy, PA
3315 Broadway,
Oakland, CA 94611-5717

Ph: (510) 486-2300

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).

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.