Dr Katherine E Walker, MD - Medicare Family Medicine in Sonoma, CA

Dr Katherine E Walker, MD is a medicare enrolled "Family Medicine" physician in Sonoma, California. Her current practice location is 15000 Arnold Drive, Sonoma, California. You can reach out to her office (for appointments etc.) via phone at (707) 938-6556.

Dr Katherine E Walker is licensed to practice in California (license number G69445) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1437101177.

Contact Information

Dr Katherine E Walker, MD
15000 Arnold Drive,
Sonoma, CA 95431-1493
(707) 938-6556
Not Available

Map and Direction




Physician's Profile

Full NameDr Katherine E Walker
GenderFemale
SpecialityFamily Medicine
Location15000 Arnold Drive, Sonoma, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1437101177
  • Provider Enumeration Date: 05/17/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 5890702765
  • Enrollment ID: I20060317000225

Medical Identifiers

Medical identifiers for Dr Katherine E Walker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1437101177NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine G69445 (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. Dr Katherine E Walker allows following entities to bill medicare on her behalf.
Entity NameState Of California - Department Of Developmental Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154372498
PECOS PAC ID: 4082788732
Enrollment ID: O20081114000496

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. Dr Katherine E Walker 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
Dr Katherine E Walker, MD
1600 9th Street, Room 205, Mailstop 2-3,
Sacramento, CA 95814-6414

Ph: (916) 654-2431
Dr Katherine E Walker, MD
15000 Arnold Drive,
Sonoma, CA 95431-1493

Ph: (707) 938-6556

Reviews and Comments


Family Medicine Doctors in Sonoma, CA

Gerald Joseph Camarata, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 15000 Arnold Drive, Sonoma, CA 95431
Phone: 707-938-6556    
Daisy Manuel-arguelles, DO
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 270 Perkins Street, Sonoma, CA 95476
Phone: 707-938-3131    Fax: 707-938-3678
David Sheridan Gray, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 15000 Arnold Drive, Sonoma, CA 95431
Phone: 707-938-6556    
Dr. Ralph Steven Pulverman, D.O.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 19270 Sonoma Highway 12, Sonoma, CA 95476
Phone: 707-939-6070    Fax: 707-939-6077
Carol Anne Castillo, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 15000 Arnold Drive, Sonoma, CA 95431
Phone: 707-938-6556    
Robert K Koida, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 181 Andrieux St, Suite 201, Sonoma, CA 95476
Phone: 707-938-3870    Fax: 707-938-3895
Mr. Subhash Mishra, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 270 Perkins Street, Sonoma, CA 95476
Phone: 707-938-3131    Fax: 707-938-3678

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.