Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Lia Armstrong Wystrach, BSN, RN, MN, FNP-C

Individual provider Family Nurse Practitioner · NPI 1326692708

Lia Armstrong Wystrach, BSN, RN, MN, FNP-C is a Nurse Practitioner in Larkspur, California. Qualified in 2019, 7 years ago. Practices with Regents Univ of California UCSF, a 272-clinician group, works from 2 locations and offers telehealth. Licensed in California and Oregon.

Years since qualifying
7
Licensed in
CA, OR
In the registry since
2019
Specialties on file
2
What do these letters mean?
BSN — Bachelor of Science in Nursing
A four-year nursing degree.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

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Practice location Address checks out

1100 Larkspur Landing Cir Ste 10
Larkspur, CA 94939-1836
Phone: (415) 924-1214
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 10151 Se Sunnyside Rd Ste 100, Clackamas, OR 97015-6913 — (503) 659-0880

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 95035870 (CA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 201906215NP-PP (OR)

Record details

NPI number1326692708
Entity typeIndividual (Type 1)
GenderFemale
Credentials BSN , RN , MN , FNP-C
Sole proprietorNo
NPI enumeratedJuly 24, 2019
Last updated in NPPESJuly 21, 2025
Certification dateJuly 21, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Regents Univ Of California Ucsf — 272 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients83
Services billed 267 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Adventist Health Portland Hospital · Portland, OR
  • Marinhealth Medical Center Hospital · Greenbrae, CA
  • Novato Community Hospital Hospital · Novato, CA

Colleagues at Regents Univ of California UCSF

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 272 clinicians in the practice; 12 are shown here.

Other providers in Larkspur