LIA ARMSTRONG WYSTRACH BSN, RN, MN, FNP-C
NPI 1326692708
Nurse Practitioner - Family in Larkspur, CA
About Lia Armstrong Wystrach Bsn, Rn, Mn, Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LIA ARMSTRONG WYSTRACH BSN, RN, MN, FNP-C (NPI 1326692708) is an individual family provider in Larkspur, California, licensed in California (95035870) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS, is affiliated with Adventist Health Portland, and maintains a secondary practice location in Clackamas.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Lia Armstrong Wystrach Bsn, Rn, Mn, Fnp-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Adventist Health Portland
Acute Care Hospitals · Portland, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94939 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LARKSPUR, CA 94939
LARKSPUR, CA 94939
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Lia Wystrach's NPI number?
The NPI number for Lia Wystrach is 1326692708. It was assigned to this individual provider in the NPPES registry on July 24, 2019. The provider is also known as Lia Marguerite Armstrong.
Where is Lia Wystrach located?
Lia Wystrach practices at 1100 Larkspur Landing Cir Ste 10, Larkspur, CA 94939. The listed phone number is (415) 924-1214.
What is Lia Wystrach's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Lia Wystrach enrolled in Medicare?
Yes. Lia Wystrach is registered in the Medicare PECOS enrollment system.
What insurance does Lia Wystrach accept?
Health plans from Moda Health Plan, Inc. list Lia Wystrach as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Lia Wystrach affiliated with any hospitals?
According to CMS data, Lia Wystrach is affiliated with Adventist Health Portland.
When was this NPI record last updated?
The NPPES record for Lia Wystrach was last updated on July 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
