Dr Michael James Krier, MD - Medicare Gastroenterology in Fairfield, CA

Dr Michael James Krier, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Fairfield, California. He went to Wright State University Boonshoft School Of Medicine and graduated in 2004 and has 20 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Northbay Healthcare Group and his current practice location is 101 Bodin Cir, Fairfield, California. You can reach out to his office (for appointments etc.) via phone at (707) 423-4501.

Dr Michael James Krier is licensed to practice in California (license number A100295) 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 1497808414.

Contact Information

Dr Michael James Krier, MD
101 Bodin Cir,
Fairfield, CA 94535-1809
(707) 423-4501
Not Available

Map and Direction




Physician's Profile

Full NameDr Michael James Krier
GenderMale
SpecialityGastroenterology
Experience20 Years
Location101 Bodin Cir, 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 Michael James Krier attended and graduated from Wright State University Boonshoft School Of Medicine in 2004
  NPI Data:
  • NPI Number: 1497808414
  • Provider Enumeration Date: 01/21/2007
  • Last Update Date: 04/08/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 3173747383
  • Enrollment ID: I20160419002549

Medical Identifiers

Medical identifiers for Dr Michael James Krier such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497808414NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A100295 (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 Michael James Krier 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

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 James Krier 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 James Krier, MD
1200 B Gale Wilson Blvd,
Fairfield, CA 94533-3552

Ph: (707) 646-4465
Dr Michael James Krier, MD
101 Bodin Cir,
Fairfield, CA 94535-1809

Ph: (707) 423-4501

Reviews and Comments


Internal Medicine Doctors in Fairfield, CA

Dr. Anne An-ru Chen, M.D.
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 1127 Texas St, Suite A, Fairfield, CA 94533
Phone: 707-426-6060    
Dr. Myo Swe Chang, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 103 Bodin Cir, Bld 778, Fairfield, CA 94535
Phone: 707-437-1817    Fax: 707-437-1809
Genieve Marie Martinez-hernandez,
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 60 Mdg/sgomi, 101 Bodin Circle, Fairfield, CA 94535
Phone: 707-423-7342    
Elizabeth W. Fernandes, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 101 Bodin Cir, Fairfield, CA 94535
Phone: 707-423-5053    
Dr. Jeannette Peterson, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1261 Travis Blvd, Suite 100, Fairfield, CA 94533
Phone: 707-422-0543    Fax: 707-422-0549
Warren Joseph A San Diego, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1200 B Gale Wilson Blvd, Fairfield, CA 94533
Phone: 707-646-5080    
Maria Conley, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 101 Bodin Cir, Fairfield, CA 94535
Phone: 707-423-3000    

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.