Randall S Williams, MD - Medicare General Practice in Chico, CA

Randall S Williams, MD is a medicare enrolled "General Practice" physician in Chico, California. He went to Loma Linda University School Of Medicine and graduated in 1986 and has 38 years of diverse experience with area of expertise as General Practice. He is a member of the group practice Mangrove Medical Group and his current practice location is 1040 Mangrove Ave, Chico, California. You can reach out to his office (for appointments etc.) via phone at (530) 345-0064.

Randall S Williams is licensed to practice in California (license number G068885) 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 1245261114.

Contact Information

Randall S Williams, MD
1040 Mangrove Ave,
Chico, CA 95926-3509
(530) 345-0064
(530) 345-0080

Map and Direction




Physician's Profile

Full NameRandall S Williams
GenderMale
SpecialityGeneral Practice
Experience38 Years
Location1040 Mangrove Ave, Chico, 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:
  • Randall S Williams attended and graduated from Loma Linda University School Of Medicine in 1986
  NPI Data:
  • NPI Number: 1245261114
  • Provider Enumeration Date: 07/06/2006
  • Last Update Date: 07/09/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 5092887869
  • Enrollment ID: I20080710000694

Medical Identifiers

Medical identifiers for Randall S Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1245261114NPI-NPPES
00G688850MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208D00000XGeneral Practice G068885 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Enloe Medical CenterChico, CAHospital
Oroville HospitalOroville, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mangrove Medical Group014326068710

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. Randall S Williams allows following entities to bill medicare on his behalf.
Entity NameMangrove Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326038381
PECOS PAC ID: 0143260687
Enrollment ID: O20050504000823
Entity NameFlorence Wellness Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336771088
PECOS PAC ID: 9739518895
Enrollment ID: O20200411000315

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. Randall S Williams 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
Randall S Williams, MD
1040 Mangrove Ave,
Chico, CA 95926-3509

Ph: (530) 345-0064
Randall S Williams, MD
1040 Mangrove Ave,
Chico, CA 95926-3509

Ph: (530) 345-0064

Reviews and Comments


General Practice Doctors in Chico, CA

Kevin R Sorensen, DO
General Practice
Medicare: Accepting Medicare Assignments
Practice Location: 1040 Mangrove Ave, Chico, CA 95926
Phone: 530-345-0064    Fax: 530-345-0680
Dr. Randall Elton Caviness, M.D.
General Practice
Medicare: Accepting Medicare Assignments
Practice Location: 1279 E 1st Ave Ste A, Chico, CA 95926
Phone: 530-891-9531    Fax: 530-891-9533
Robert L Mellon, M.D.
General Practice
Medicare: Accepting Medicare Assignments
Practice Location: 121 Raley Blvd, Chico, CA 95928
Phone: 530-898-1201    
Kurt E Johnson, M.D., INC.
General Practice
Medicare: May Accept Medicare Assignments
Practice Location: 1040 Mangrove Ave, Chico, CA 95926
Phone: 530-345-0064    Fax: 530-345-0080
Richard H Brownley, MD
General Practice
Medicare: Accepting Medicare Assignments
Practice Location: 888 Lakeside Village Commons, Chico, CA 95928
Phone: 530-332-7479    Fax: 530-893-6853
Ronald D. Johnson, M.D.
General Practice
Medicare: Not Enrolled in Medicare
Practice Location: 376 Vallombrosa Ave, Chico, CA 95926
Phone: 530-891-1676    Fax: 530-891-1833

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.