Mary Karen Werder, - Medicare Nurse Practitioner in Santa Rosa, CA

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Mary Karen Werder, is a medicare enrolled "Nurse Practitioner - Psychiatric/mental Health" in Santa Rosa, California. Her current practice location is 3333 Chanate Rd, Santa Rosa, California. You can reach out to her office (for appointments etc.) via phone at (707) 565-4929.

Mary Karen Werder is licensed to practice in California (license number 22191) 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 1083762595.

Contact Information

Mary Karen Werder,
3333 Chanate Rd,
Santa Rosa, CA 95404-1707
(707) 565-4929
Not Available

Map and Direction




Provider's Profile

Full NameMary Karen Werder
GenderFemale
SpecialityNurse Practitioner - Psychiatric/mental Health
Location3333 Chanate Rd, Santa Rosa, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1083762595
  • Provider Enumeration Date: 01/08/2007
  • Last Update Date: 09/11/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 7113240235
  • Enrollment ID: I20141222001788

Medical Identifiers

Medical identifiers for Mary Karen Werder such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1083762595NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
163W00000XRegistered Nurse 296429 (California)Secondary
363LP0808XNurse Practitioner - Psychiatric/mental Health 22191 (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. Mary Karen Werder allows following entities to bill medicare on her behalf.
Entity NameProvidence Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285890624
PECOS PAC ID: 8921993205
Enrollment ID: O20040216001346
Entity NameSanta Rosa Memorial Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134152549
PECOS PAC ID: 4284535378
Enrollment ID: O20040316001007

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. Mary Karen Werder 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
Mary Karen Werder,
3333 Chanate Rd,
Santa Rosa, CA 95404-1707

Ph: () -		Mary Karen Werder,
3333 Chanate Rd,
Santa Rosa, CA 95404-1707

Ph: (707) 565-4929

Reviews and Comments


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Practice Location: 3317 Chanate Rd, Suite 2c, Santa Rosa, CA 95404
Phone: 707-570-1130    Fax: 707-571-2478

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.