Dr Allan S Au, MD - Medicare Hospitalist in Fairfield, CA

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Dr Allan S Au, MD is a medicare enrolled "Hospitalist" physician in Fairfield, California. He graduated from medical school in 2013 and has 11 years of diverse experience with area of expertise as Hospitalist. He is a member of the group practice Northbay Healthcare Group and his current practice location is 1200 B Gale Wilson Blvd, Fairfield, California. You can reach out to his office (for appointments etc.) via phone at (707) 646-5000.

Dr Allan S Au is licensed to practice in California (license number A146155) 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 1427495563.

Contact Information

Dr Allan S Au, MD
1200 B Gale Wilson Blvd,
Fairfield, CA 94533-3552
(707) 646-5000
Not Available

Map and Direction




Physician's Profile

Full NameDr Allan S Au
GenderMale
SpecialityHospitalist
Experience11 Years
Location1200 B Gale Wilson Blvd, Fairfield, 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 Allan S Au graduated from medical school in 2013
  NPI Data:
  • NPI Number: 1427495563
  • Provider Enumeration Date: 05/30/2013
  • Last Update Date: 12/19/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 6507141421
  • Enrollment ID: I20170316000078

Medical Identifiers

Medical identifiers for Dr Allan S Au such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427495563NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist A146155 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northbay Medical CenterFairfield, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Northbay Healthcare Group0042122244244

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 Allan S Au allows following entities to bill medicare on his behalf.
Entity NameNorthbay Healthcare Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821147786
PECOS PAC ID: 0042122244
Enrollment ID: O20031105000409
Entity NameHospitalist Medicine Physicians Of California Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184663965
PECOS PAC ID: 8426062027
Enrollment ID: O20060202000956
Entity NameHospitalist Medicine Physicians Of California - Fairfield Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487132007
PECOS PAC ID: 3779836085
Enrollment ID: O20181101002925

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 Allan S Au 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 Allan S Au, MD
1200 B Gale Wilson Blvd,
Fairfield, CA 94533-3552

Ph: (707) 646-5000		Dr Allan S Au, MD
1200 B Gale Wilson Blvd,
Fairfield, CA 94533-3552

Ph: (707) 646-5000

Reviews and Comments


Hospitalist Doctors in Fairfield, CA

Dr. Pranay Bahuguna, M.D.
Hospitalist
Medicare: Medicare Enrolled
Practice Location: 3165 Cherry Valley Circle, Fairfield, CA 94534
Phone: 203-583-2644    
Dr. Benjamin Leo Liu, D.O.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 1200 B Gale Wilson Blvd, Fairfield, CA 94533
Phone: 707-626-5000    

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.