Joseph Michael Mashinchi, PA - Medicare Physician Assistant in Oakland, CA

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Joseph Michael Mashinchi, PA is a medicare enrolled "Physician Assistant" in Oakland, California. He graduated from nursing school in 2015 and has 11 years of diverse experience with area of expertise as Physician Assistant. He is a member of the group practice Northbay Physicians Surgery Center, Llc and his current practice location is 747 52nd St, Oakland, California. You can reach out to his office (for appointments etc.) via phone at (510) 428-3238.

Joseph Michael Mashinchi is licensed to practice in California (license number 52558) 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 1184004913.

Contact Information

Joseph Michael Mashinchi, PA
747 52nd St,
Oakland, CA 94609-1809
(510) 428-3238
Not Available

Map and Direction




Provider's Profile

Full NameJoseph Michael Mashinchi
GenderMale
SpecialityPhysician Assistant
Experience11 Years
Location747 52nd St, 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:
  • Joseph Michael Mashinchi graduated from nursing school in 2015
  NPI Data:
  • NPI Number: 1184004913
  • Provider Enumeration Date: 06/06/2015
  • Last Update Date: 09/18/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 0244546786
  • Enrollment ID: I20150831000024

Medical Identifiers

Medical identifiers for Joseph Michael Mashinchi such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1184004913NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 52558 (California)Primary
363AS0400XPhysician Assistant - Surgical PA52558 (California)Secondary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Northbay Physicians Surgery Center, Llc0042122244336

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. Joseph Michael Mashinchi allows following entities to bill medicare on his behalf.
Entity NameNorthbay Physicians Surgery Center, LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821147786
PECOS PAC ID: 0042122244
Enrollment ID: O20031105000409
Entity NameRegents of the University of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760552343
PECOS PAC ID: 4284547274
Enrollment ID: O20031106000389
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023063542
PECOS PAC ID: 6103739131
Enrollment ID: O20031106000520
Entity NameUCSF Pediatrics Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376614016
PECOS PAC ID: 6204749112
Enrollment ID: O20031106000823
Entity NameUniversity of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameUCSF Dept of Surgery
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477627537
PECOS PAC ID: 7719886373
Enrollment ID: O20040102000839
Entity NameUCSF Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513

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. Joseph Michael Mashinchi 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
Joseph Michael Mashinchi, PA
1441 Florida Ave,
Modesto, CA 95350-4404

Ph: (209) 578-1211		Joseph Michael Mashinchi, PA
747 52nd St,
Oakland, CA 94609-1809

Ph: (510) 428-3238

Reviews and Comments


Physician Assistant Nurses in Oakland, CA

Ms. Sherrie Ann Shiota, PA-C
Physician Assistant
Medicare: Not Enrolled in Medicare
Practice Location: 747 52nd St, Oakland, CA 94609
Phone: 510-428-3885    Fax: 510-597-7169
Emily Eisenberg, PA-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 1411 E 31st St, Oakland, CA 94602
Phone: 510-437-4800    
Rebecca Roisman Armstrong, PA
Physician Assistant
Medicare: Not Enrolled in Medicare
Practice Location: 1144 65th St Ste F, Oakland, CA 94608
Phone: 510-929-1400    Fax: 510-929-1414
Dawn H Resney-deems, PA
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 275 W Macarthur, Oakland, CA 94611
Phone: 510-752-1000    Fax: 510-752-1758
Kristen Lynn Smol, PA-C
Physician Assistant
Medicare: Not Enrolled in Medicare
Practice Location: 616 16th St, Oakland, CA 94612
Phone: 510-563-4300    
Linda Irene Villarreal, PA
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 275 W Macarthur Blvd, Oakland, CA 94611
Phone: 510-752-1000    
Yoo Min Yoon,
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 450 30th St, Oakland, CA 94609
Phone: 510-869-9200    

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.