Dr Michael J Marchiano, MD - Medicare Internal Medicine in Hayward, CA

Dr Michael J Marchiano, MD is a medicare enrolled "Internal Medicine" physician in Hayward, California. He graduated from medical school in 1986 and has 38 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Dr Aditya Jain Md Inc and his current practice location is 27206 Calaroga Ave, Ste 205, Hayward, California. You can reach out to his office (for appointments etc.) via phone at (510) 670-1111.

Dr Michael J Marchiano is licensed to practice in California (license number A46191) 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 1275636276.

Contact Information

Dr Michael J Marchiano, MD
27206 Calaroga Ave, Ste 205,
Hayward, CA 94545-4300
(510) 670-1111
(510) 670-4772

Map and Direction




Physician's Profile

Full NameDr Michael J Marchiano
GenderMale
SpecialityInternal Medicine
Experience38 Years
Location27206 Calaroga Ave, Hayward, 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 J Marchiano graduated from medical school in 1986
  NPI Data:
  • NPI Number: 1275636276
  • Provider Enumeration Date: 09/06/2006
  • Last Update Date: 04/07/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 0244143428
  • Enrollment ID: I20031112000651

Medical Identifiers

Medical identifiers for Dr Michael J Marchiano such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275636276NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A46191 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Gentiva HospicePleasanton, CAHospice
St Rose HospitalHayward, CAHospital
Eden Medical CenterCastro valley, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Dr Aditya Jain Md Inc41838548216

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 Michael J Marchiano allows following entities to bill medicare on his behalf.
Entity NameDr Aditya Jain Md Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629405618
PECOS PAC ID: 4183854821
Enrollment ID: O20140226000136

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 J Marchiano 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 J Marchiano, MD
1532 150th Avenue,
San Leandro, CA 94578-1823

Ph: (510) 351-6363
Dr Michael J Marchiano, MD
27206 Calaroga Ave, Ste 205,
Hayward, CA 94545-4300

Ph: (510) 670-1111

Reviews and Comments


Internal Medicine Doctors in Hayward, CA

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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.