Lia Armstrong Wystrach, BSN, RN, MN, FNP-C - Medicare Nurse Practitioner in Larkspur, CA

Lia Armstrong Wystrach, BSN, RN, MN, FNP-C is a medicare enrolled "Nurse Practitioner - Family" in Larkspur, California. She graduated from nursing school in 2019 and has 6 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice Portland Adventist Medical Center and her current practice location is 1100 Larkspur Landing Cir Ste 10, Larkspur, California. You can reach out to her office (for appointments etc.) via phone at (415) 924-1214.

Lia Armstrong Wystrach is licensed to practice in California (license number 95035870) 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 1326692708.

Contact Information

Lia Armstrong Wystrach, BSN, RN, MN, FNP-C
1100 Larkspur Landing Cir Ste 10,
Larkspur, CA 94939-1836
(415) 924-1214
Not Available

Map and Direction




Provider's Profile

Full NameLia Armstrong Wystrach
GenderFemale
SpecialityNurse Practitioner
Experience6 Years
Location1100 Larkspur Landing Cir Ste 10, Larkspur, 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:
  • Lia Armstrong Wystrach graduated from nursing school in 2019
  NPI Data:
  • NPI Number: 1326692708
  • Provider Enumeration Date: 07/24/2019
  • Last Update Date: 07/21/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 1951734532
  • Enrollment ID: I20191212001694

Medical Identifiers

Medical identifiers for Lia Armstrong Wystrach such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326692708NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LF0000XNurse Practitioner - Family 201906215NP-PP (Oregon)Secondary
363LF0000XNurse Practitioner - Family 95035870 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Health PortlandPortland, ORHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Portland Adventist Medical Center3274908819266

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. Lia Armstrong Wystrach allows following entities to bill medicare on her behalf.
Entity NamePortland Adventist Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215910302
PECOS PAC ID: 7012827876
Enrollment ID: O20040226000131
Entity NamePortland Adventist Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750091021
PECOS PAC ID: 3274908819
Enrollment ID: O20230412001327

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. Lia Armstrong Wystrach 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
Lia Armstrong Wystrach, BSN, RN, MN, FNP-C
4114 Ne Royal Ct Apt A,
Portland, OR 97232-2677

Ph: (650) 576-2558
Lia Armstrong Wystrach, BSN, RN, MN, FNP-C
1100 Larkspur Landing Cir Ste 10,
Larkspur, CA 94939-1836

Ph: (415) 924-1214

Reviews and Comments


Nurse Practitioner Nurses in Larkspur, CA

Mrs. Linda Lou Goldberg, N.P.
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 5 Bon Air Rd, Suite 117, Larkspur, CA 94939
Phone: 415-924-9770    Fax: 415-924-8143
Nancy Ellen Honsa, NURSE PRACTITIONER
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 5 Bon Air Rd, Larkspur, CA 94939
Phone: 415-924-9060    
Lisa V. Elvin, NP
Nurse Practitioner
Medicare: May Accept Medicare Assignments
Practice Location: 2 Bon Air Rd, Suite 120, Larkspur, CA 94939
Phone: 415-927-5300    Fax: 415-927-5242
Sara Koenig, CPNP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 5 Bon Air Road, Ste. 105, Larkspur, CA 94939
Phone: 415-461-0440    Fax: 415-461-3792
Deborah Ann Leal, N.P-F
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 2 Bon Air Rd Ste 100, Larkspur, CA 94939
Phone: 415-927-0666    Fax: 415-927-6168
Shannon Browning, N.P.
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 2 Bon Air Rd, #100, Larkspur, CA 94939
Phone: 415-927-0666    Fax: 415-927-6168

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.