Sonia Guilfoos, MSW - Medicare Clinical Social Worker in San Bernardino, CA

Sonia Guilfoos, MSW is a medicare enrolled "Social Worker - Clinical" provider in San Bernardino, California. She graduated from medical school in 2014 and has 10 years of diverse experience with area of expertise as Clinical Social Worker. She is a member of the group practice Sac Health System and her current practice location is 1950 Sunwest Ln, San Bernardino, California. You can reach out to her office (for appointments etc.) via phone at (909) 252-4010.

Sonia Guilfoos is licensed to practice in California (license number 76910) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1861763518.

Contact Information

Sonia Guilfoos, MSW
1950 Sunwest Ln,
San Bernardino, CA 92415-0019
(909) 252-4010
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameSonia Guilfoos
GenderFemale
SpecialityClinical Social Worker
Experience10 Years
Location1950 Sunwest Ln, San Bernardino, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Sonia Guilfoos graduated from medical school in 2014
  NPI Data:
  • NPI Number: 1861763518
  • Provider Enumeration Date: 01/25/2012
  • Last Update Date: 05/30/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 8729338074
  • Enrollment ID: I20190311001950

Medical Identifiers

Medical identifiers for Sonia Guilfoos such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861763518NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
1041C0700XSocial Worker - Clinical 76910 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sac Health System4385533579169

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. Sonia Guilfoos allows following entities to bill medicare on her behalf.
Entity NameSac Health System
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013935923
PECOS PAC ID: 4385533579
Enrollment ID: O20040315000608

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. Sonia Guilfoos 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
Sonia Guilfoos, MSW
1950 Sunwest Ln,
San Bernardino, CA 92415-0019

Ph: (909) 252-4010
Sonia Guilfoos, MSW
1950 Sunwest Ln,
San Bernardino, CA 92415-0019

Ph: (909) 252-4010

Reviews and Comments


Social Worker in San Bernardino, CA

Ms. Crystal Lynn Blakkan,
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1738 N Waterman Ave, San Bernardino, CA 92404
Phone: 909-693-3302    
Emily J. Taylor, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1255 E Highland Ave Ste 107, San Bernardino, CA 92404
Phone: 909-648-7643    
Enas Joseph, MSW LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 700 E Gilbert St, San Bernardino, CA 92415
Phone: 909-387-6940    
Monique Castaneda,
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 820 E Gilbert St, San Bernardino, CA 92415
Phone: 909-387-7200    
Susan Kimberly Gilliam, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 2080 S E St, San Bernardino, CA 92408
Phone: 909-388-9191    
Rajvi Patel,
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1738 N Waterman Ave, San Bernardino, CA 92404
Phone: 909-693-3302    
Kimberly A Johnson, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1760 W 16th St, San Bernardino, CA 92411
Phone: 909-473-1200    

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).

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