Mark Gorton Wills, MD - Medicare Emergency Medicine in Sonoma, CA

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Mark Gorton Wills, MD is a medicare enrolled "Emergency Medicine" physician in Sonoma, California. His current practice location is 347 Andrieux Street, Sonoma, California. You can reach out to his office (for appointments etc.) via phone at (707) 935-5100.

Mark Gorton Wills is licensed to practice in California (license number G63295) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1063525715.

Contact Information

Mark Gorton Wills, MD
347 Andrieux Street,
Sonoma, CA 95476-6811
(707) 935-5100
Not Available

Map and Direction




Physician's Profile

Full NameMark Gorton Wills
GenderMale
SpecialityEmergency Medicine
Location347 Andrieux Street, Sonoma, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1063525715
  • Provider Enumeration Date: 08/16/2006
  • Last Update Date: 07/07/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 6800781709
  • Enrollment ID: I20040219000261

Medical Identifiers

Medical identifiers for Mark Gorton Wills such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063525715NPI-NPPES
00G632950MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine G63295 (California)Primary

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. Mark Gorton Wills allows following entities to bill medicare on his behalf.
Entity NameSan Francisco Emergency Medical
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134110661
PECOS PAC ID: 5698662518
Enrollment ID: O20040303001130
Entity NameNorth Sonoma County Health Care District
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194824573
PECOS PAC ID: 4789594367
Enrollment ID: O20060406000251
Entity NameBig River Emergency Physicians Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033501168
PECOS PAC ID: 2466764303
Enrollment ID: O20150706002430

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. Mark Gorton Wills 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
Mark Gorton Wills, MD
Po Box 10609,
Westminster, CA 92685-0609

Ph: (877) 818-6100		Mark Gorton Wills, MD
347 Andrieux Street,
Sonoma, CA 95476-6811

Ph: (707) 935-5100

Reviews and Comments


Emergency Medicine Doctors in Sonoma, CA

Jay W. Goldberg, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 347 Andrieux Street, Sonoma, CA 95476
Phone: 707-935-5100    
William G. Keyser, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 347 Andrieux Street, Sonoma, CA 95476
Phone: 707-935-5100    
Robert T Petty, DO
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 866 Donner Ave, Sonoma, CA 95476
Phone: 360-708-7940    
Erick S. French, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 347 Andrieux St, Sonoma, CA 95476
Phone: 707-935-5000    Fax: 925-225-5838
D Jasper Schmidt, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 347 Andrieux St, Sonoma, CA 95476
Phone: 707-634-4751    
Dr. Leslie Eileen Graham, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 347 Andrieux St, Sonoma, CA 95476
Phone: 707-935-5100    

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.