Guy Delorefice, MD - Medicare Internal Medicine in Sonoma, CA

Guy Delorefice, MD is a medicare enrolled "Internal Medicine" physician in Sonoma, California. He went to Creighton University School Of Medicine and graduated in 1996 and has 28 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 370 Perkins St, Sonoma, California. You can reach out to his office (for appointments etc.) via phone at (707) 938-1255.

Guy Delorefice is licensed to practice in California (license number A0689180) 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 1952426421.

Contact Information

Guy Delorefice, MD
370 Perkins St,
Sonoma, CA 95476-6827
(707) 938-1255
(707) 938-2321

Map and Direction




Physician's Profile

Full NameGuy Delorefice
GenderMale
SpecialityInternal Medicine
Experience28 Years
Location370 Perkins St, Sonoma, 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:
  • Guy Delorefice attended and graduated from Creighton University School Of Medicine in 1996
  NPI Data:
  • NPI Number: 1952426421
  • Provider Enumeration Date: 03/20/2007
  • Last Update Date: 05/10/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 4789744715
  • Enrollment ID: I20081120000879

Medical Identifiers

Medical identifiers for Guy Delorefice such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1952426421NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A0689180 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Sonoma Valley HospitalSonoma, CAHospital
Santa Rosa Memorial HospitalSanta rosa, CAHospital

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. Guy Delorefice allows following entities to bill medicare on his behalf.
Entity NameGuy Delorefice Md Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033446125
PECOS PAC ID: 2264567387
Enrollment ID: O20100315000796

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. Guy Delorefice 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
Guy Delorefice, MD
370 Perkins St,
Sonoma, CA 95476-6827

Ph: (707) 938-1255
Guy Delorefice, MD
370 Perkins St,
Sonoma, CA 95476-6827

Ph: (707) 938-1255

Reviews and Comments


Internal Medicine Doctors in Sonoma, CA

Dr. S Douglas Campbell, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 670 Third Street West, Sonoma, CA 95476
Phone: 707-938-5916    Fax: 707-938-8496
Dr. Brian Martin Sebastian, MD
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 651 1st St W, Suite H, Sonoma, CA 95476
Phone: 707-938-3870    
Walter C Prehn, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 181 Andrieux Street, Suite 206, Sonoma, CA 95476
Phone: 707-495-7762    Fax: 707-938-7337
Dr. James Earl Price, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 558 Third Street West, Sonoma, CA 95476
Phone: 707-935-1470    Fax: 707-935-7817
Dr. Alex Rainow, MD
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 651 1st St W Ste L, Sonoma, CA 95476
Phone: 707-935-1470    Fax: 707-935-7817
John Gifford Boyce-smith, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 4863 Grove St, Sonoma, CA 95476
Phone: 415-613-5338    
Dr. Dennis James Verducci, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 670 3rd St W, Sonoma, CA 95476
Phone: 707-938-5916    

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.