Sierra Armstrong, FNP
NPI 1417442419 · Nurse Practitioner · South Lake Tahoe, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sierra Armstrong, FNP is a Nurse Practitioner provider in South Lake Tahoe, CA (NPI 1417442419).
Provider details
- NPI number
- 1417442419
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 95008336 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
44 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 44 | $167 |
Typical Medicare-allowed amounts for these services range $167–$167 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bupropion Hclbrand: Bupropion Xl | 59 | — |
| Trazodone Hcl | 43 | 17 |
| Hydroxyzine Hcl | 39 | — |
| Duloxetine Hcl | 38 | — |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 37 | — |
| Fluoxetine Hcl | 32 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$152 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-06-22
- Last updated
- 2024-03-26
- Certified
- 2024-03-26
Frequently asked questions
- What is Sierra Armstrong's NPI number?
- Sierra Armstrong's National Provider Identifier (NPI) is 1417442419, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Armstrong's specialty?
- Sierra Armstrong is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sierra Armstrong located?
- Sierra Armstrong's practice location on file with NPPES is 1067 4th St, South Lake Tahoe, CA 96150-3459.
- What is Sierra Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Sierra Armstrong is (530) 600-1968.
- Does Sierra Armstrong accept Medicare?
- Sierra Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sierra Armstrong's NPI active?
- Yes — Sierra Armstrong's NPI (1417442419) is active in the NPPES registry as of the last update on 2024-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.