Son Lam Nguyen, MD - Medicare Internal Medicine in Fairfield, CA

Son Lam Nguyen, MD is a medicare enrolled "Internal Medicine" physician in Fairfield, California. He graduated from medical school in 2004 and has 20 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Marin Hospitalist Medical Group, Inc. and his current practice location is 1525 Webster St, A, Fairfield, California. You can reach out to his office (for appointments etc.) via phone at (707) 423-9484.

Son Lam Nguyen is licensed to practice in California (license number A100779) 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 1114119526.

Contact Information

Son Lam Nguyen, MD
1525 Webster St, A,
Fairfield, CA 94533-4997
(707) 423-9484
Not Available

Map and Direction




Physician's Profile

Full NameSon Lam Nguyen
GenderMale
SpecialityInternal Medicine
Experience20 Years
Location1525 Webster St, 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:
  • Son Lam Nguyen graduated from medical school in 2004
  NPI Data:
  • NPI Number: 1114119526
  • Provider Enumeration Date: 08/10/2007
  • Last Update Date: 10/18/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 8921155227
  • Enrollment ID: I20090402000124

Medical Identifiers

Medical identifiers for Son Lam Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1114119526NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A100779 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Marinhealth Medical CenterGreenbrae, CAHospital
Sonoma Valley HospitalSonoma, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Marin Hospitalist Medical Group, Inc.145625714634

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. Son Lam Nguyen allows following entities to bill medicare on his behalf.
Entity NameMarin Hospitalist Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023041753
PECOS PAC ID: 1456257146
Enrollment ID: O20031211001139

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. Son Lam Nguyen 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
Son Lam Nguyen, MD
5184 Palace Ct,
Fairfield, CA 94534-4161

Ph: (707) 863-7485
Son Lam Nguyen, MD
1525 Webster St, A,
Fairfield, CA 94533-4997

Ph: (707) 423-9484

Reviews and Comments


Internal Medicine Doctors in Fairfield, CA

Dr. Anne An-ru Chen, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1127 Texas St, Suite A, Fairfield, CA 94533
Phone: 707-426-6060    
Dr. Myo Swe Chang, MD
Internal Medicine
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,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 60 Mdg/sgomi, 101 Bodin Circle, Fairfield, CA 94535
Phone: 707-423-7342    
Elizabeth W. Fernandes, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 101 Bodin Cir, Fairfield, CA 94535
Phone: 707-423-5053    
Dr. Jeannette Peterson, M.D.
Internal Medicine
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
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1200 B Gale Wilson Blvd, Fairfield, CA 94533
Phone: 707-646-5080    
Maria Conley, MD
Internal Medicine
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.